Re: [M100] low profile pcb pins

[MikeS]

Also:



https://www.peconnectors.com/component-carriers/hws16187/
  - Original Message - 
  From: Stephen Adolph 
  To: m...@bitchin100.com 
  Sent: Friday, February 26, 2021 11:32 AM
  Subject: Re: [M100] low profile pcb pins


  this is what I am using today.  works really well, should have bought 
hundreds of them!






  On Fri, Feb 26, 2021 at 8:51 AM Stephen Adolph  wrote:

Greg, thanks for that, and I hope you feel better soon!
I counted and I have enough pin headers to build a grand total of 12 more 
REX# NEC/M10.  then that's it.

Steve


On Fri, Feb 26, 2021 at 8:46 AM Greg Swallow  wrote:

  Steve, 

  I should have some of what I use to make system ROM sockets fom T102. Am 
in VA hospital for a day or two. Took a dizzy fall at work and gotta find out 
why. Hope to be home by Sat and will dig up what I got and let you know. 

  I believe they were 1x20 @ 2.54mm spacing. No longer in my eBay purchase 
history. 

  God Bless, 

  GregS <>< 



  Feb 26, 2021 5:55:48 AM Stephen Adolph :

Hi folks. 
I'm struggling to find a good pcb pin for building REX# NEC/M10. 


I have tried working with those leadframes, but I find it difficult to 
work with them.  I have to file them down so that the pins don't catch, and 
they don't work on machine sockets either. 



https://www.te.com/usa-en/product-1544210-2.html 




Can someone recommend a good low cost low profile solder machine pin? 


What I have today is absolutely perfect, but I can't find any more.  It 
is a 28 pin DIP header based on machine pins that has a really thin plastic 
frame.  So the module plugs in and sits almost directly flush to the host 
socket. 


thx 
Steve 

Re: [M100] low profile pcb pins

[Brian K. White]

Just realized I kept calling Jeff, Bert. Sorry Jeff!

--
bkw

On 2/26/21 4:37 PM, Brian White wrote:
At least some are rectangular. I think they're still a bit thick but 
maybe thin enough not to abuse the socket too bad.


With the leadframes, there are 2 potentially fiddly/random that can be 
made nice and repeatable and practical by just procedure or technique.


I start with the leadframes by cutting the "busy" end off with scissors, 
leaving a simple comb.


I hold the busy side in my left hand while cutting with my right, so I 
can see both the shoulders where the pins widen and the scissor blade at 
the same time. I just keep the scissors aimed about 2 mm away from the 
shoulders as I go. The end result is good enough. The pins only need to 
be roughly the same length. A little freehand wandering along the right 
line doesn't hurt.


Or if you want you can make up some kind of jig like just cut a slot in 
a piece of wood, drop the frame in, score the pins with a knife or flush 
cut or draw a line with a fine tip sharpie. That would still be pretty 
simple but I don't think even that much is necessary.


Either way, now you have a simple "comb" and it didn't take all day.

The next fiddly part is setting the depth of how far to put the comb 
into the pcb to get legs that aren't too long or too short or slanted at 
an angle, without having to trim them after soldering.


Probably the simplest way is just use a socket or a breadboard under the 
pcb and just push the pins in untill they stop. Doing this, you have to 
be careful the solder doesn't run down the leg and solder itself to the 
socket. The tin leadframe legs rly love solder and it wets right 
down the whole length easily.


Another way might be to stick a couple of objects like toothpicks or 
something in between leadframe pins on top of the pcb, which stops the 
frame from going all the way down.


Solder. Then flush-cut away the top frame.

Done.

There's a few things I like about Bert's idea.

The pins are already cut perfectly neatly on the free end.

And the pins are just normal gold plated and the solder won't instantly 
wet itself down the whole pin. It will pretty much just stay where you 
put it. That means there's no problem using a socket as a jig to set the 
depth and hold the pins while soldering.


I also like that the end result is a gold plated pin instead of tin.

But I don't like the thickness of the pins, but maybe I need to take 
another look, maybe it's no worse than machined round pins.


The more I think about it, the more I like Bert's idea.

--
bkw

On Fri, Feb 26, 2021, 1:45 PM Stephen Adolph > wrote:


thanks for the suggestion Jeff.  Those look like square pins right?
I don't think those will engage nicely with the typical DIL socket
you would see used with an IC though.
Am I wrong?  Ive tried to stuff those pins into sockets before
and... it doesn't seem right to do that.

Steve

On Fri, Feb 26, 2021 at 1:37 PM Jeffrey Birt mailto:bir...@soigeneris.com>> wrote:

For the MOS8701/HB I produce I use the long tail stackable
headers commonly used for Arduinos. You want the type that has a
rectangular but not square profile with the thin side less than
0.5mm. These work well in normal leaf sockets and seem to work
well in machine pin sockets as well.

__ __

The trick is you need a fixture to solder them. For example, if
you set your PCB down on a breadboard and push the headers
through you can top solder and trim the excess away. The plastic
part of the header is only serving as a carrier to hold the pins
in place in this case.

Jeff Birt

__ __

__ __

*From:* M100 mailto:m100-boun...@lists.bitchin100.com>> *On Behalf Of *B4 Me100
*Sent:* Friday, February 26, 2021 10:27 AM
*To:* m...@bitchin100.com 
*Subject:* Re: [M100] low profile pcb pins

__ __

I have used the following two strips with the M100 SysBus socket
for quite a few projects - not sure it is the same format as the
NEC socket.  The strips are very low profile which means the
modules easily clear the cover, even with tall components on the
top side.  But they are expensive which is OK for one or two
modules but perhaps not for mass production. 

__ __

Samtec TS-120-T-A  20 pins = $2.83


https://www.digikey.com/en/products/detail/TS-120-T-A/SAM1112-20-ND/1105474?itemSeq=356013488



__ __

Mill-Max Manufacturing Corp. 335-40-120-00-16 20pins = $6.83


https://www.digikey.com/en/products/detail/335-40-120-00-16/ED5932-20-ND/4455921?itemSeq=356013724

Re: [M100] mcomm on linux

[Chris Fezzler]

 Over a decade of Club100 and multiple decades with Model T computing and I 
never tried mComm.  Looks cool.
Dug out my old Win7 subnotebook, my Gigaware USB-to-serial cable and a null 
modem gender changer.  Connected everything up.mComm installed perfectly and 
put a nice icon on my desktop.  It sees the USB serial port as Com3.  Cool.
Hey, after I type RUN "COM:98N1E" in BASIC, do I hit ENTER on the M100?  
So the notebook and Model T were definitely communicating but I was not able to 
get TSDOS pushed to the Model T.  Should I see text echoed to screen?  How long 
does it take?
Anyway, I got another Model T that already has TSDOS on it and it works great 
with mComm.
Thanks to all you innovators out there.  


On Friday, February 26, 2021, 03:14:34 PM EST, AvantGuard Systems 
 wrote:  
 
 I have yet to get the cables for connecting my M100 to my computer to access 
files. However in the meantime I have installed mcomm. I'm wondering how I'm 
supposed to use it. 

So if I enter the command: mcomm -l    it says there are no serial ports 
available. Perhaps once it's plugged into the M100 it will see the USB as a 
serial port, but.Now I can issue the command mcomm --port to open a serial 
port.I'm wondering if that is what I will have to do. So I'll have to figure 
out which /dev/tty is the usb port in question, set it as a serial device 
and then tell mcomm to set it as the serial port to use?
Maybe once I get the cables it'll make more sense.
Setting the path to the base directory seems self explanatory. (mcomm --path 
PATH) or I can create a TPDD directory right in my home directory as that would 
be the default.

 Curtis 
  

Re: [M100] mcomm on linux

[John R. Hogerhuis]

udev is the way, IMO. At least on the Pi that I have a lot of experience
with.

The rules are a pain in the rear. Probably because I don't fully understand
how it works, so it is a process of trial and error. But udev is the only
way I've gotten consistent control of device naming for projects.

The key is to find enough distinct attributes to match on, that are at the
same "level". There are lots of USB device properties, but a single udev
rules must match properties all at the same level.

-- John.

Re: [M100] OK to list M102s for sale?

[John R. Hogerhuis]

Yes, offering any Model T related stuff here for sale is no problem at all,
and encouraged.

Re: [M100] mcomm on the Pinephone

[Bert Put]

It should work if you can get the dongle to work.  My pinephone is the
UBPorts edition with the old main board that will not activate the USB-C
dongle.

Cheers,Bert

On 2/26/21 6:23 PM, Hiraghm wrote:
> Where can I find the python version of mcomm?
> 
> I'd like to give it a try on my Pinephone running Mobian Linux.
> 
> 

[M100] mcomm on the Pinephone

[Hiraghm]

Where can I find the python version of mcomm?

I'd like to give it a try on my Pinephone running Mobian Linux.

Re: [M100] mcomm on linux

[Daryl Tester]

On 27/2/21 7:04 am, Kurt McCullum wrote:


Once you plug your USB to serial adapter into your system, it will show
up under /dev. You have to have permissions to access it so you
will likely need to use chmod on it before you can use it.


Because the permissions are ephemeral and will disappear when you unplug
the USB device (unless you hack at udev, the subsystem responsible for
creating the device entry when the USB device is plugged in), a more
persistent method is to add yourself to the supplementary group that
/dev/ttyUSB* belongs to.

e.g.

$ ls -l /dev/ttyUSB0
crw-rw 1 root dialout 188, 0 Feb 27 09:59 /dev/ttyUSB0

$ id -a
uid=1000(dt) gid=1000(dt) 
groups=1000(dt),4(adm),20(dialout),24(cdrom),27(sudo),30(dip),46(plugdev),116(lpadmin),126(sambashare),129(libvirt),999(docker)

If you're not a member, add yourself with the following command:

$ sudo usermod -a -G dialout 

Then logout, and back in, so your process will pick up the new group membership.

Cheers,
  --dt

Re: [M100] OK to list M102s for sale?

[Tom Wilson]

I sold my T200 here, and other people sell computers and parts.

Tom Wilson
wilso...@gmail.com
(619)940-6311



On Fri, Feb 26, 2021 at 3:19 PM Dave Christensen  wrote:

> Is it Ok to list for sale items here?  If so, I will repost with what I
> would like to see moved to someone who can use them
>
>
>
> Thanks.
>

[M100] OK to list M102s for sale?

[Dave Christensen]

Is it Ok to list for sale items here?  If so, I will repost with what I
would like to see moved to someone who can use them

 

Thanks.

Re: [M100] mcomm android issue

[Gregory McGill]

Is it winter yet? :)did you ever escape?

Greg

On Fri, Jul 31, 2020 at 12:30 PM Kurt McCullum  wrote:

> :) thanks. A lot more body surfing going on rather than web surfing. It
> will definitely be a summer to remember.
>
> On Fri, Jul 31, 2020, at 12:27 PM, John R. Hogerhuis wrote:
>
> Congratulations to Kurt McCullum on the list Quote of the Month
>
> "*I'm still stuck in a beach house with only one model-t*"
>
> :-)
>
> -- John.
>
>
>

Re: [M100] printer port

[Alex ...]

No kidding? I may actually have one of those lying around in a bin.
Thanks!

On Wed, Feb 24, 2021 at 9:34 PM John R. Hogerhuis  wrote:

> The thickened plot: that LPT port connector wiring... is some kind of
> "standard" such that that the typical parallel port motherboard IDC
> connector to DB-25F used in building a PC works with the Model T. As in,
> you an connect that ribbon table to the Model T, and then to a printer
> cable.
>
> -- John.
>


-- 
Disclaimer: Any resemblance between the above views and those of my
employer, my terminal, or the view out my window are purely coincidental.
Any resemblance between the above and my own views is non-deterministic.
The question of the existence of views in the absence of anyone to hold
them is left as an exercise for the reader.
The question of the existence of the reader is left as an exercise for the
second god coefficient.  (A discussion of non-orthogonal, non-integral
polytheism is beyond the scope of this article.) Thanks /usr/games/fortune

Re: [M100] low profile pcb pins

[Brian White]

Not just difficult. You can always jam them in, at least into leaf style
sockets.

The real problem is it's bad for the socket and that is an unconscionable
thing to do to unwitting users.



On Fri, Feb 26, 2021, 1:52 PM Greg Swallow  wrote:

> Steve,
>
> I can agree on the square pins being difficult to fit. Have a packe of
> some 1x40 I never used because of it.
>
> God Bless,
>
> GregS <><
>
> Feb 26, 2021 11:42:40 AM Stephen Adolph :
>
> thanks for the suggestion Jeff.  Those look like square pins right? I
> don't think those will engage nicely with the typical DIL socket you would
> see used with an IC though.
> Am I wrong?  Ive tried to stuff those pins into sockets before and... it
> doesn't seem right to do that.
>
> Steve
>
> On Fri, Feb 26, 2021 at 1:37 PM Jeffrey Birt 
> wrote:
>
>> For the MOS8701/HB I produce I use the long tail stackable headers
>> commonly used for Arduinos. You want the type that has a rectangular but
>> not square profile with the thin side less than 0.5mm. These work well in
>> normal leaf sockets and seem to work well in machine pin sockets as well.
>>
>>
>>
>> The trick is you need a fixture to solder them. For example, if you set
>> your PCB down on a breadboard and push the headers through you can top
>> solder and trim the excess away. The plastic part of the header is only
>> serving as a carrier to hold the pins in place in this case.
>>
>> Jeff Birt
>>
>>
>>
>>
>>
>> *From:* M100  *On Behalf Of *B4 Me100
>> *Sent:* Friday, February 26, 2021 10:27 AM
>> *To:* m...@bitchin100.com
>> *Subject:* Re: [M100] low profile pcb pins
>>
>>
>>
>> I have used the following two strips with the M100 SysBus socket for
>> quite a few projects - not sure it is the same format as the NEC socket.
>> The strips are very low profile which means the modules easily clear the
>> cover, even with tall components on the top side.  But they are expensive
>> which is OK for one or two modules but perhaps not for mass production.
>>
>>
>>
>> Samtec TS-120-T-A  20 pins = $2.83
>>
>>
>> https://www.digikey.com/en/products/detail/TS-120-T-A/SAM1112-20-ND/1105474?itemSeq=356013488
>>
>>
>>
>> Mill-Max Manufacturing Corp. 335-40-120-00-16 20pins = $6.83
>>
>>
>> https://www.digikey.com/en/products/detail/335-40-120-00-16/ED5932-20-ND/4455921?itemSeq=356013724
>>
>>
>>
>>
>>
>

Re: [M100] low profile pcb pins

[Brian White]

At least some are rectangular. I think they're still a bit thick but maybe
thin enough not to abuse the socket too bad.

With the leadframes, there are 2 potentially fiddly/random that can be made
nice and repeatable and practical by just procedure or technique.

I start with the leadframes by cutting the "busy" end off with scissors,
leaving a simple comb.

I hold the busy side in my left hand while cutting with my right, so I can
see both the shoulders where the pins widen and the scissor blade at the
same time. I just keep the scissors aimed about 2 mm away from the
shoulders as I go. The end result is good enough. The pins only need to be
roughly the same length. A little freehand wandering along the right line
doesn't hurt.

Or if you want you can make up some kind of jig like just cut a slot in a
piece of wood, drop the frame in, score the pins with a knife or flush cut
or draw a line with a fine tip sharpie. That would still be pretty simple
but I don't think even that much is necessary.

Either way, now you have a simple "comb" and it didn't take all day.

The next fiddly part is setting the depth of how far to put the comb into
the pcb to get legs that aren't too long or too short or slanted at an
angle, without having to trim them after soldering.

Probably the simplest way is just use a socket or a breadboard under the
pcb and just push the pins in untill they stop. Doing this, you have to be
careful the solder doesn't run down the leg and solder itself to the
socket. The tin leadframe legs rly love solder and it wets right down
the whole length easily.

Another way might be to stick a couple of objects like toothpicks or
something in between leadframe pins on top of the pcb, which stops the
frame from going all the way down.

Solder. Then flush-cut away the top frame.

Done.

There's a few things I like about Bert's idea.

The pins are already cut perfectly neatly on the free end.

And the pins are just normal gold plated and the solder won't instantly wet
itself down the whole pin. It will pretty much just stay where you put it.
That means there's no problem using a socket as a jig to set the depth and
hold the pins while soldering.

I also like that the end result is a gold plated pin instead of tin.

But I don't like the thickness of the pins, but maybe I need to take
another look, maybe it's no worse than machined round pins.

The more I think about it, the more I like Bert's idea.

-- 
bkw

On Fri, Feb 26, 2021, 1:45 PM Stephen Adolph  wrote:

> thanks for the suggestion Jeff.  Those look like square pins right? I
> don't think those will engage nicely with the typical DIL socket you would
> see used with an IC though.
> Am I wrong?  Ive tried to stuff those pins into sockets before and... it
> doesn't seem right to do that.
>
> Steve
>
> On Fri, Feb 26, 2021 at 1:37 PM Jeffrey Birt 
> wrote:
>
>> For the MOS8701/HB I produce I use the long tail stackable headers
>> commonly used for Arduinos. You want the type that has a rectangular but
>> not square profile with the thin side less than 0.5mm. These work well in
>> normal leaf sockets and seem to work well in machine pin sockets as well.
>>
>>
>>
>> The trick is you need a fixture to solder them. For example, if you set
>> your PCB down on a breadboard and push the headers through you can top
>> solder and trim the excess away. The plastic part of the header is only
>> serving as a carrier to hold the pins in place in this case.
>>
>> Jeff Birt
>>
>>
>>
>>
>>
>> *From:* M100  *On Behalf Of *B4 Me100
>> *Sent:* Friday, February 26, 2021 10:27 AM
>> *To:* m...@bitchin100.com
>> *Subject:* Re: [M100] low profile pcb pins
>>
>>
>>
>> I have used the following two strips with the M100 SysBus socket for
>> quite a few projects - not sure it is the same format as the NEC socket.
>> The strips are very low profile which means the modules easily clear the
>> cover, even with tall components on the top side.  But they are expensive
>> which is OK for one or two modules but perhaps not for mass production.
>>
>>
>>
>> Samtec TS-120-T-A  20 pins = $2.83
>>
>>
>> https://www.digikey.com/en/products/detail/TS-120-T-A/SAM1112-20-ND/1105474?itemSeq=356013488
>>
>>
>>
>> Mill-Max Manufacturing Corp. 335-40-120-00-16 20pins = $6.83
>>
>>
>> https://www.digikey.com/en/products/detail/335-40-120-00-16/ED5932-20-ND/4455921?itemSeq=356013724
>>
>>
>>
>>
>>
>

Re: [M100] low profile pcb pins

[Stephen Adolph]

very cool Jeff!   I see now what you mean.  definitely please send a pic of
the pin shape to confirm and I will grab a bundle too!  awesome.  I've
spent way too much time struggling with this issue.  nice.


On Fri, Feb 26, 2021 at 3:01 PM Jeffrey Birt  wrote:

> It was difficult getting dimensions from the various sellers of these
> ‘Arduino’ headers, of the few that responded I have purchased twice from
> the following eBay seller:
>
>
>
>
> https://www.ebay.com/itm/200x-Arduino-8-Pin-Stackable-Female-Shield-Headers-Tall-Breadboard-Stacking-USA/150721147532
>
>
>
> I recently placed a third order from them for some which should arrive
> tomorrow, I will let you know if the quality is different that the first
> two batches. I’m sure they could be had cheaper from Ali Express but it is
> many times hard to know exactly what you will be getting that way or if you
> will get the same thing again. At least this way the product seems to be
> consistent.
>
>
>
> I would be happy to send you some if you want to try them, I have some
> extra. Just drop me an email with your address and I’ll send some out.
>
>
>
> Jeff Birt
>
>
>
>
>
> *From:* M100  *On Behalf Of *Stephen
> Adolph
> *Sent:* Friday, February 26, 2021 1:52 PM
> *To:* m...@bitchin100.com
> *Subject:* Re: [M100] low profile pcb pins
>
>
>
> Jeff, wasn't sure what dimension you were referring to.
>
> do you have  a part number?
>
>
>
>
>
> On Fri, Feb 26, 2021 at 1:37 PM Jeffrey Birt 
> wrote:
>
> For the MOS8701/HB I produce I use the long tail stackable headers
> commonly used for Arduinos. You want the type that has a rectangular but
> not square profile with the thin side less than 0.5mm. These work well in
> normal leaf sockets and seem to work well in machine pin sockets as well.
>
>
>
> The trick is you need a fixture to solder them. For example, if you set
> your PCB down on a breadboard and push the headers through you can top
> solder and trim the excess away. The plastic part of the header is only
> serving as a carrier to hold the pins in place in this case.
>
> Jeff Birt
>
>
>
>
>
> *From:* M100  *On Behalf Of *B4 Me100
> *Sent:* Friday, February 26, 2021 10:27 AM
> *To:* m...@bitchin100.com
> *Subject:* Re: [M100] low profile pcb pins
>
>
>
> I have used the following two strips with the M100 SysBus socket for quite
> a few projects - not sure it is the same format as the NEC socket.  The
> strips are very low profile which means the modules easily clear the cover,
> even with tall components on the top side.  But they are expensive which is
> OK for one or two modules but perhaps not for mass production.
>
>
>
> Samtec TS-120-T-A  20 pins = $2.83
>
>
> https://www.digikey.com/en/products/detail/TS-120-T-A/SAM1112-20-ND/1105474?itemSeq=356013488
>
>
>
> Mill-Max Manufacturing Corp. 335-40-120-00-16 20pins = $6.83
>
>
> https://www.digikey.com/en/products/detail/335-40-120-00-16/ED5932-20-ND/4455921?itemSeq=356013724
>
>
>
>
>
>

Re: [M100] mcomm on linux

[Kurt McCullum]

Curtis,

Once you plug your USB to serial adapter into your system, it will show up 
under /dev. You have to have permissions to access it so you will likely need 
to use chmod on it before you can use it. By default, mComm will use the first 
serial port (if there are any). By default, mComm will create a TPDD folder in 
your user folder. If permissions on the tty device are proper, then calling 
mcomm from a prompt should work with the defaults.

Kurt

On Fri, Feb 26, 2021, at 12:14 PM, AvantGuard Systems wrote:
> I have yet to get the cables for connecting my M100 to my computer to access 
> files. However in the meantime I have installed mcomm. I'm wondering how I'm 
> supposed to use it. 
> 
> So if I enter the command: mcomm -lit says there are no serial ports 
> available. Perhaps once it's plugged into the M100 it will see the USB as a 
> serial port, but.
> Now I can issue the command mcomm --port to open a serial port.
> I'm wondering if that is what I will have to do. So I'll have to figure out 
> which /dev/tty is the usb port in question, set it as a serial device and 
> then tell mcomm to set it as the serial port to use?
> 
> Maybe once I get the cables it'll make more sense.
> 
> Setting the path to the base directory seems self explanatory. (mcomm --path 
> PATH) or I can create a TPDD directory right in my home directory as that 
> would be the default.
> 
>  Curtis 

[M100] mcomm on linux

[AvantGuard Systems]

I have yet to get the cables for connecting my M100 to my computer to
access files. However in the meantime I have installed mcomm. I'm wondering
how I'm supposed to use it.

So if I enter the command: mcomm -lit says there are no serial ports
available. Perhaps once it's plugged into the M100 it will see the USB as a
serial port, but.
Now I can issue the command mcomm --port to open a serial port.
I'm wondering if that is what I will have to do. So I'll have to figure out
which /dev/tty is the usb port in question, set it as a serial device
and then tell mcomm to set it as the serial port to use?

Maybe once I get the cables it'll make more sense.

Setting the path to the base directory seems self explanatory. (mcomm
--path PATH) or I can create a TPDD directory right in my home directory as
that would be the default.

 Curtis

Re: [M100] low profile pcb pins

[Jeffrey Birt]

It was difficult getting dimensions from the various sellers of these ‘Arduino’ 
headers, of the few that responded I have purchased twice from the following 
eBay seller:

 

https://www.ebay.com/itm/200x-Arduino-8-Pin-Stackable-Female-Shield-Headers-Tall-Breadboard-Stacking-USA/150721147532

 

I recently placed a third order from them for some which should arrive 
tomorrow, I will let you know if the quality is different that the first two 
batches. I’m sure they could be had cheaper from Ali Express but it is many 
times hard to know exactly what you will be getting that way or if you will get 
the same thing again. At least this way the product seems to be consistent.

 

I would be happy to send you some if you want to try them, I have some extra. 
Just drop me an email with your address and I’ll send some out. 

 

Jeff Birt

 

 

From: M100  On Behalf Of Stephen Adolph
Sent: Friday, February 26, 2021 1:52 PM
To: m...@bitchin100.com
Subject: Re: [M100] low profile pcb pins

 

Jeff, wasn't sure what dimension you were referring to.

do you have  a part number?

 

 

On Fri, Feb 26, 2021 at 1:37 PM Jeffrey Birt mailto:bir...@soigeneris.com> > wrote:

For the MOS8701/HB I produce I use the long tail stackable headers commonly 
used for Arduinos. You want the type that has a rectangular but not square 
profile with the thin side less than 0.5mm. These work well in normal leaf 
sockets and seem to work well in machine pin sockets as well.

 

The trick is you need a fixture to solder them. For example, if you set your 
PCB down on a breadboard and push the headers through you can top solder and 
trim the excess away. The plastic part of the header is only serving as a 
carrier to hold the pins in place in this case.

Jeff Birt

 

 

From: M100 mailto:m100-boun...@lists.bitchin100.com> > On Behalf Of B4 Me100
Sent: Friday, February 26, 2021 10:27 AM
To: m...@bitchin100.com  
Subject: Re: [M100] low profile pcb pins

 

I have used the following two strips with the M100 SysBus socket for quite a 
few projects - not sure it is the same format as the NEC socket.  The strips 
are very low profile which means the modules easily clear the cover, even with 
tall components on the top side.  But they are expensive which is OK for one or 
two modules but perhaps not for mass production.  

 

Samtec TS-120-T-A  20 pins = $2.83

https://www.digikey.com/en/products/detail/TS-120-T-A/SAM1112-20-ND/1105474?itemSeq=356013488

 

Mill-Max Manufacturing Corp. 335-40-120-00-16 20pins = $6.83

https://www.digikey.com/en/products/detail/335-40-120-00-16/ED5932-20-ND/4455921?itemSeq=356013724

 

 

Re: [M100] low profile pcb pins

[Stephen Adolph]

Jeff, wasn't sure what dimension you were referring to.
do you have  a part number?


On Fri, Feb 26, 2021 at 1:37 PM Jeffrey Birt  wrote:

> For the MOS8701/HB I produce I use the long tail stackable headers
> commonly used for Arduinos. You want the type that has a rectangular but
> not square profile with the thin side less than 0.5mm. These work well in
> normal leaf sockets and seem to work well in machine pin sockets as well.
>
>
>
> The trick is you need a fixture to solder them. For example, if you set
> your PCB down on a breadboard and push the headers through you can top
> solder and trim the excess away. The plastic part of the header is only
> serving as a carrier to hold the pins in place in this case.
>
> Jeff Birt
>
>
>
>
>
> *From:* M100  *On Behalf Of *B4 Me100
> *Sent:* Friday, February 26, 2021 10:27 AM
> *To:* m...@bitchin100.com
> *Subject:* Re: [M100] low profile pcb pins
>
>
>
> I have used the following two strips with the M100 SysBus socket for quite
> a few projects - not sure it is the same format as the NEC socket.  The
> strips are very low profile which means the modules easily clear the cover,
> even with tall components on the top side.  But they are expensive which is
> OK for one or two modules but perhaps not for mass production.
>
>
>
> Samtec TS-120-T-A  20 pins = $2.83
>
>
> https://www.digikey.com/en/products/detail/TS-120-T-A/SAM1112-20-ND/1105474?itemSeq=356013488
>
>
>
> Mill-Max Manufacturing Corp. 335-40-120-00-16 20pins = $6.83
>
>
> https://www.digikey.com/en/products/detail/335-40-120-00-16/ED5932-20-ND/4455921?itemSeq=356013724
>
>
>
>
>

Re: [M100] low profile pcb pins

[Jeffrey Birt]

They are ‘rectangular’ but not ‘square’. As I mentioned, “You want the type 
that has a rectangular but not square profile with the thin side less than 
0.5mm. These work well in normal leaf sockets and seem to work well in machine 
pin sockets as well.”

These leads on these headers measure 0.014”x0.025” (0.36mm x 0.64mm). I have 
produced 100+ chip replacements with these and they work well. 

 

Jeff Birt

 

From: M100  On Behalf Of Stephen Adolph
Sent: Friday, February 26, 2021 12:39 PM
To: m...@bitchin100.com
Subject: Re: [M100] low profile pcb pins

 

thanks for the suggestion Jeff.  Those look like square pins right? I don't 
think those will engage nicely with the typical DIL socket you would see used 
with an IC though.  

Am I wrong?  Ive tried to stuff those pins into sockets before and... it 
doesn't seem right to do that.

 

Steve

 

On Fri, Feb 26, 2021 at 1:37 PM Jeffrey Birt mailto:bir...@soigeneris.com> > wrote:

For the MOS8701/HB I produce I use the long tail stackable headers commonly 
used for Arduinos. You want the type that has a rectangular but not square 
profile with the thin side less than 0.5mm. These work well in normal leaf 
sockets and seem to work well in machine pin sockets as well.

 

The trick is you need a fixture to solder them. For example, if you set your 
PCB down on a breadboard and push the headers through you can top solder and 
trim the excess away. The plastic part of the header is only serving as a 
carrier to hold the pins in place in this case.

Jeff Birt

 

 

From: M100 mailto:m100-boun...@lists.bitchin100.com> > On Behalf Of B4 Me100
Sent: Friday, February 26, 2021 10:27 AM
To: m...@bitchin100.com  
Subject: Re: [M100] low profile pcb pins

 

I have used the following two strips with the M100 SysBus socket for quite a 
few projects - not sure it is the same format as the NEC socket.  The strips 
are very low profile which means the modules easily clear the cover, even with 
tall components on the top side.  But they are expensive which is OK for one or 
two modules but perhaps not for mass production.  

 

Samtec TS-120-T-A  20 pins = $2.83

https://www.digikey.com/en/products/detail/TS-120-T-A/SAM1112-20-ND/1105474?itemSeq=356013488

 

Mill-Max Manufacturing Corp. 335-40-120-00-16 20pins = $6.83

https://www.digikey.com/en/products/detail/335-40-120-00-16/ED5932-20-ND/4455921?itemSeq=356013724

 

 

Re: [M100] RS232 Wifi Modem

[Jim Anderson]

> -Original Message-
> But that's only super convenient if you happen
> to have an Android phone or tablet. And I suppose only if moving files
> to a phone instead of your real computer is good enough, maybe via
> google drive.

Just wanted to add a thought here... I think I have posted about this before 
but it was probably more than a year ago.  I came up with what I felt was a 
slick solution for this which syncs the files in mComm on Android with 
everything else.

I had already put my TPDD folder in Dropbox because I was using mComm on 
multiple computers at home and at work and wanted to keep the files in sync.  
When I installed mComm on my Android device I used an app called Dropsync to 
perform the bidirectional sync between the TPDD folder in the Android 
filesystem and the TPDD folder in Dropbox.  (This is because the Dropbox client 
app for Android doesn't actually sync files with the device, it only allows you 
to download local copies; also you can't configure it to put files in an 
arbitrary folder in the Android filesystem.)  Once Dropsync is configured to 
perform bidirectional sync, it will do so on a configurable interval and also 
on demand whenever it detects changes in the local folder (ie. when you upload 
something from your Model T into mComm, Dropsync will see it and upload it to 
your Dropbox, and it will be on your other computers in a matter of seconds).

I still do something almost exactly like this, except I moved it all into a 
Nextcloud instance which I self-host.  The Nextcloud app for Android also does 
not sync locally (much like the Dropbox app) so I use an app called Synchronize 
Ultimate to do the same thing Dropsync did with Dropbox.  I had been thinking 
about moving away from Dropbox for some time because of data privacy and 
residency concerns (having to be cautious about not putting sensitive files in 
my Dropbox because it's stored in the U.S.), but then when they changed the 
free account to only allow installation on a small number of devices (which I 
had already exceeded) I was finally motivated to pull the plug and set up my 
own cloud storage.  No reason you couldn't still do it on Dropbox as long as 
the number of devices you want to keep synced is small (or if you pay them).







jim

Re: [M100] low profile pcb pins

[Greg Swallow]

Steve,

I can agree on the square pins being difficult to fit. Have a packe of some 
1x40 I never used because of it.

God Bless,

GregS <><

Feb 26, 2021 11:42:40 AM Stephen Adolph :

> thanks for the suggestion Jeff.  Those look like square pins right? I don't 
> think those will engage nicely with the typical DIL socket you would see used 
> with an IC though.  
> Am I wrong?  Ive tried to stuff those pins into sockets before and... it 
> doesn't seem right to do that.
> 
> Steve
> 
> On Fri, Feb 26, 2021 at 1:37 PM Jeffrey Birt  wrote:
>> 
>> For the MOS8701/HB I produce I use the long tail stackable headers commonly 
>> used for Arduinos. You want the type that has a rectangular but not square 
>> profile with the thin side less than 0.5mm. These work well in normal leaf 
>> sockets and seem to work well in machine pin sockets as well.
>> 
>>  
>> 
>> The trick is you need a fixture to solder them. For example, if you set your 
>> PCB down on a breadboard and push the headers through you can top solder and 
>> trim the excess away. The plastic part of the header is only serving as a 
>> carrier to hold the pins in place in this case.
>> 
>> Jeff Birt
>> 
>>  
>> 
>>  
>> 
>> From: M100  On Behalf Of B4 Me100
>> Sent: Friday, February 26, 2021 10:27 AM
>> To: m...@bitchin100.com
>> Subject: Re: [M100] low profile pcb pins
>> 
>>  
>> 
>> I have used the following two strips with the M100 SysBus socket for quite a 
>> few projects - not sure it is the same format as the NEC socket.  The strips 
>> are very low profile which means the modules easily clear the cover, even 
>> with tall components on the top side.  But they are expensive which is OK 
>> for one or two modules but perhaps not for mass production.  
>> 
>>  
>> 
>> Samtec TS-120-T-A  20 pins = $2.83
>> 
>> https://www.digikey.com/en/products/detail/TS-120-T-A/SAM1112-20-ND/1105474?itemSeq=356013488
>> 
>>  
>> 
>> Mill-Max Manufacturing Corp. 335-40-120-00-16 20pins = $6.83
>> 
>> https://www.digikey.com/en/products/detail/335-40-120-00-16/ED5932-20-ND/4455921?itemSeq=356013724
>> 
>>  
>> 
>>  
>> 

Re: [M100] low profile pcb pins

[Stephen Adolph]

thanks for the suggestion Jeff.  Those look like square pins right? I don't
think those will engage nicely with the typical DIL socket you would see
used with an IC though.
Am I wrong?  Ive tried to stuff those pins into sockets before and... it
doesn't seem right to do that.

Steve

On Fri, Feb 26, 2021 at 1:37 PM Jeffrey Birt  wrote:

> For the MOS8701/HB I produce I use the long tail stackable headers
> commonly used for Arduinos. You want the type that has a rectangular but
> not square profile with the thin side less than 0.5mm. These work well in
> normal leaf sockets and seem to work well in machine pin sockets as well.
>
>
>
> The trick is you need a fixture to solder them. For example, if you set
> your PCB down on a breadboard and push the headers through you can top
> solder and trim the excess away. The plastic part of the header is only
> serving as a carrier to hold the pins in place in this case.
>
> Jeff Birt
>
>
>
>
>
> *From:* M100  *On Behalf Of *B4 Me100
> *Sent:* Friday, February 26, 2021 10:27 AM
> *To:* m...@bitchin100.com
> *Subject:* Re: [M100] low profile pcb pins
>
>
>
> I have used the following two strips with the M100 SysBus socket for quite
> a few projects - not sure it is the same format as the NEC socket.  The
> strips are very low profile which means the modules easily clear the cover,
> even with tall components on the top side.  But they are expensive which is
> OK for one or two modules but perhaps not for mass production.
>
>
>
> Samtec TS-120-T-A  20 pins = $2.83
>
>
> https://www.digikey.com/en/products/detail/TS-120-T-A/SAM1112-20-ND/1105474?itemSeq=356013488
>
>
>
> Mill-Max Manufacturing Corp. 335-40-120-00-16 20pins = $6.83
>
>
> https://www.digikey.com/en/products/detail/335-40-120-00-16/ED5932-20-ND/4455921?itemSeq=356013724
>
>
>
>
>

Re: [M100] Why not transfer with Telcom?

[Robert J. Hutchins]

Most Model T file transfer programs use an old non TCP/IP protocol called 
Xmodem...

-Original Message-
From: M100 [mailto:m100-boun...@lists.bitchin100.com] On Behalf Of Brian K. 
White
Sent: Thursday, February 25, 2021 9:56 PM
To: m...@bitchin100.com
Subject: Re: [M100] Why not transfer with Telcom?

On 2/25/21 9:08 PM, AvantGuard Systems wrote:
> I can use Telcom and connect to BBS's. When on a session you have the 
> options to (I forget the exact terminology on the screen) UPLOAD, DOWNLOAD.

TELCOM has no file transfer ability. All it can do is capture text from the 
serial port to a file and it can read a file and send it out the serial port.

That is missing too many things. No binary data, no machine language programs, 
not even 8-bit text, no error detection, let alone error correction, it can't 
even tell when a file begins or ends out of any other data coming in the serial 
port, nor can tell the host side when sending a file.

You have to do all those kinds of things yourself with separate programs in a 
dozen laborious, inefficient, error-prone steps before and after the actual 
transfer, to manage to get a file transferred that way. 
(encode the file with some kind of utility, generate a checksum of either the 
original file or maybe the encoded file, start the capture on one end, start 
sending from the other end, somehow arrange to ensure that there is not a 
single byte of other junk included in the capture before or after the file 
contents, run a decoder program on the receiving end to unpack the encoded file 
back into it's real form, run a checksum program to verify that, delete the 
encoded version, have an empty machine so that the ram can all be used up on 
having both the file you want and the 2x size encoded copy of it and the 
decoder app all in ram at the same time (so no big files), and then how did you 
get the encoder or decoder app onto the 100 in the first place? Manually type 
it in? Cassette? TELCOM capture an ascii format BASIC program and just hope it 
wasn't corrupted?

You only do that once per reset simply because the system rom provides no other 
option besides the cassette interface (for instance TELCOM has no xmodem), and 
you physically have no choice. So you do that once, just to bootstrap some kind 
of software to do that job for real the rest of the time, until the next time 
you wipe the machine.

> So if I can upload and download files, why can't I build my own FTP 
> SERVER? or whatever server, put the program files on it and download 
> them to the Model100?

I'm not sure what exactly is the question. Yes you can place files on a 
computer and download them to the 100. That's exactly all a TPDD emulator (akak 
tpdd server) does is exactly that.

It's not FTP though. FTP is a tcp/ip protocol. There is no such thing as tcp/ip 
on a 100.

--
bkw

Re: [M100] low profile pcb pins

[Stephen Adolph]

I should have said,
The key aspect here is how thin the carrier plastic piece is.
I never did find out who manufactured this header.
[image: 20210226_112228.jpg]

On Fri, Feb 26, 2021 at 11:32 AM Stephen Adolph 
wrote:

> this is what I am using today.  works really well, should have bought
> hundreds of them!
>
> [image: 20210226_112228.jpg]
>
> On Fri, Feb 26, 2021 at 8:51 AM Stephen Adolph 
> wrote:
>
>> Greg, thanks for that, and I hope you feel better soon!
>> I counted and I have enough pin headers to build a grand total of 12 more
>> REX# NEC/M10.  then that's it.
>> Steve
>>
>> On Fri, Feb 26, 2021 at 8:46 AM Greg Swallow  wrote:
>>
>>> Steve,
>>>
>>> I should have some of what I use to make system ROM sockets fom T102. Am
>>> in VA hospital for a day or two. Took a dizzy fall at work and gotta find
>>> out why. Hope to be home by Sat and will dig up what I got and let you know.
>>>
>>> I believe they were 1x20 @ 2.54mm spacing. No longer in my eBay purchase
>>> history.
>>>
>>> God Bless,
>>>
>>> GregS <><
>>>
>>> Feb 26, 2021 5:55:48 AM Stephen Adolph :
>>>
>>> Hi folks.
>>> I'm struggling to find a good pcb pin for building REX# NEC/M10.
>>>
>>> I have tried working with those leadframes, but I find it difficult to
>>> work with them.  I have to file them down so that the pins don't catch, and
>>> they don't work on machine sockets either.
>>>
>>> https://www.te.com/usa-en/product-1544210-2.html
>>>
>>>
>>> Can someone recommend a good low cost low profile solder machine pin?
>>>
>>> What I have today is absolutely perfect, but I can't find any more.  It
>>> is a 28 pin DIP header based on machine pins that has a really thin plastic
>>> frame.  So the module plugs in and sits almost directly flush to the host
>>> socket.
>>>
>>> thx
>>> Steve
>>>
>>>
>>>
>>>

Re: [M100] low profile pcb pins

[Stephen Adolph]

this is what I am using today.  works really well, should have bought
hundreds of them!

[image: 20210226_112228.jpg]

On Fri, Feb 26, 2021 at 8:51 AM Stephen Adolph  wrote:

> Greg, thanks for that, and I hope you feel better soon!
> I counted and I have enough pin headers to build a grand total of 12 more
> REX# NEC/M10.  then that's it.
> Steve
>
> On Fri, Feb 26, 2021 at 8:46 AM Greg Swallow  wrote:
>
>> Steve,
>>
>> I should have some of what I use to make system ROM sockets fom T102. Am
>> in VA hospital for a day or two. Took a dizzy fall at work and gotta find
>> out why. Hope to be home by Sat and will dig up what I got and let you know.
>>
>> I believe they were 1x20 @ 2.54mm spacing. No longer in my eBay purchase
>> history.
>>
>> God Bless,
>>
>> GregS <><
>>
>> Feb 26, 2021 5:55:48 AM Stephen Adolph :
>>
>> Hi folks.
>> I'm struggling to find a good pcb pin for building REX# NEC/M10.
>>
>> I have tried working with those leadframes, but I find it difficult to
>> work with them.  I have to file them down so that the pins don't catch, and
>> they don't work on machine sockets either.
>>
>> https://www.te.com/usa-en/product-1544210-2.html
>>
>>
>> Can someone recommend a good low cost low profile solder machine pin?
>>
>> What I have today is absolutely perfect, but I can't find any more.  It
>> is a 28 pin DIP header based on machine pins that has a really thin plastic
>> frame.  So the module plugs in and sits almost directly flush to the host
>> socket.
>>
>> thx
>> Steve
>>
>>
>>
>>

Re: [M100] low profile pcb pins

[B4 Me100]

I have used the following two strips with the M100 SysBus socket for quite a
few projects - not sure it is the same format as the NEC socket.  The strips
are very low profile which means the modules easily clear the cover, even
with tall components on the top side.  But they are expensive which is OK
for one or two modules but perhaps not for mass production.

Samtec TS-120-T-A  20 pins = $2.83
https://www.digikey.com/en/products/detail/TS-120-T-A/SAM1112-20-ND/1105474?
itemSeq=356013488

Mill-Max Manufacturing Corp. 335-40-120-00-16 20pins = $6.83
https://www.digikey.com/en/products/detail/335-40-120-00-16/ED5932-20-ND
/4455921?itemSeq=356013724


From:  M100  on behalf of Stephen Adolph

Reply-To:  
Date:  Friday, February 26, 2021 at 4:55 AM
To:  
Subject:  [M100] low profile pcb pins

> Hi folks.
> I'm struggling to find a good pcb pin for building REX# NEC/M10.
> 
> I have tried working with those leadframes, but I find it difficult to work
> with them.  I have to file them down so that the pins don't catch, and they
> don't work on machine sockets either.
> 
> https://www.te.com/usa-en/product-1544210-2.html
>  %2Fusa-en%2Fproduct-1544210-2.html&data=04%7C01%7C%7C6a2c5d74e4ce41a3a14908d8d
> a55d550%7C84df9e7fe9f640afb435%7C1%7C0%7C637499409482536598%7CUnkn
> own%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6
> Mn0%3D%7C1000&sdata=KecplutjrQonV8qNR5GycvOl2M%2Br7afjc%2Fe%2BFDW%2Bv3I%3D&res
> erved=0> 
> 
> 
> Can someone recommend a good low cost low profile solder machine pin?
> 
> What I have today is absolutely perfect, but I can't find any more.  It is a
> 28 pin DIP header based on machine pins that has a really thin plastic frame.
> So the module plugs in and sits almost directly flush to the host socket.
> 
> thx
> Steve
> 
> 
> 
>  

Re: [M100] low profile pcb pins

[Stephen Adolph]

Greg, thanks for that, and I hope you feel better soon!
I counted and I have enough pin headers to build a grand total of 12 more
REX# NEC/M10.  then that's it.
Steve

On Fri, Feb 26, 2021 at 8:46 AM Greg Swallow  wrote:

> Steve,
>
> I should have some of what I use to make system ROM sockets fom T102. Am
> in VA hospital for a day or two. Took a dizzy fall at work and gotta find
> out why. Hope to be home by Sat and will dig up what I got and let you know.
>
> I believe they were 1x20 @ 2.54mm spacing. No longer in my eBay purchase
> history.
>
> God Bless,
>
> GregS <><
>
> Feb 26, 2021 5:55:48 AM Stephen Adolph :
>
> Hi folks.
> I'm struggling to find a good pcb pin for building REX# NEC/M10.
>
> I have tried working with those leadframes, but I find it difficult to
> work with them.  I have to file them down so that the pins don't catch, and
> they don't work on machine sockets either.
>
> https://www.te.com/usa-en/product-1544210-2.html
>
>
> Can someone recommend a good low cost low profile solder machine pin?
>
> What I have today is absolutely perfect, but I can't find any more.  It is
> a 28 pin DIP header based on machine pins that has a really thin plastic
> frame.  So the module plugs in and sits almost directly flush to the host
> socket.
>
> thx
> Steve
>
>
>
>

Re: [M100] low profile pcb pins

[Greg Swallow]

Steve,

I should have some of what I use to make system ROM sockets fom T102. Am in VA 
hospital for a day or two. Took a dizzy fall at work and gotta find out why. 
Hope to be home by Sat and will dig up what I got and let you know.

I believe they were 1x20 @ 2.54mm spacing. No longer in my eBay purchase 
history.

God Bless,

GregS <><

Feb 26, 2021 5:55:48 AM Stephen Adolph :

> Hi folks.
> I'm struggling to find a good pcb pin for building REX# NEC/M10.
> 
> I have tried working with those leadframes, but I find it difficult to work 
> with them.  I have to file them down so that the pins don't catch, and they 
> don't work on machine sockets either.
> 
> https://www.te.com/usa-en/product-1544210-2.html
> 
> 
> Can someone recommend a good low cost low profile solder machine pin?
> 
> What I have today is absolutely perfect, but I can't find any more.  It is a 
> 28 pin DIP header based on machine pins that has a really thin plastic frame. 
>  So the module plugs in and sits almost directly flush to the host socket.
> 
> thx
> Steve
> 
> 
> 

[M100] low profile pcb pins

[Stephen Adolph]

Hi folks.
I'm struggling to find a good pcb pin for building REX# NEC/M10.

I have tried working with those leadframes, but I find it difficult to work
with them.  I have to file them down so that the pins don't catch, and they
don't work on machine sockets either.

https://www.te.com/usa-en/product-1544210-2.html


Can someone recommend a good low cost low profile solder machine pin?

What I have today is absolutely perfect, but I can't find any more.  It is
a 28 pin DIP header based on machine pins that has a really thin plastic
frame.  So the module plugs in and sits almost directly flush to the host
socket.

thx
Steve

Re: [M100] RS232 Wifi Modem

[Scott McDonnell]

If it helps anyone, I went a direct route:

USB Null modem to DB25 male using FTDI chipset:

https://www.amazon.com/gp/product/B07KYR6B1G

I am using this with an Android TV box running mComm and a wifi transfer app. 
However, I have not figured out how to make it all autolaunch reliably and run 
in the background.
https://www.amazon.com/gp/product/B07Q26XFG1

Scott M.

From: Joshua O'Keefe
Sent: Thursday, February 25, 2021 11:12 PM
To: m...@bitchin100.com
Subject: Re: [M100] RS232 Wifi Modem

I originally bought some cabling to do serial transfers to an Amiga, and wound 
up dedicating this setup to a permanent TPDD emulation setup at my desk.  Just 
to record it for posterity, here are the products I use daily:

StarTech.com USB to Serial RS232 Adapter - DB9 Serial DCE Adapter Cable with 
FTDI – Null Modem - USB 1.1 / 2.0 – Bus-Powered (ICUSB232FTN), Black
https://smile.amazon.com/gp/product/B008634VJY/
This is a null-wired cable with an FTDI chip and DB9 at the far end.

StarTech.com DB9 to DB25 Serial Adapter - M/F - Serial adapter - DB-9 (M) to 
DB-25 (F) - AT925MF 
https://smile.amazon.com/gp/product/B87RYP/
This is your typical 9-to-25 adapter

StarTech.com DB25 Slimline Gender Changer M/M - Serial / parallel gender 
changer - DB-25 (M) to DB-25 (M) - GC25SM 
https://smile.amazon.com/gp/product/B00066HP5G/
This is the usual M/M adapter, for my 102's upside down connector