Re: [M100] Supercap battery replacement in Model T?

This is the standard part I use: https://au.mouser.com/ProductDetail/PowerStor-Eaton/KR-5R5V334-R?qs=9GX7soZQXxEDr%252BE08UDVYA%3D%3D Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Follow my amateur radio adventures at vk1zdj.net On Sun, 17 Mar 2024 at 21:48, r cs wrote

Re: [M100] Got RexCPM working and CP/M, too, now what?

Every time I see one of those evil NiCad batteries, I replace it with a 0.5F supercap. I have never had an issue with my M100, or with the Olivetti equivalent (number escapes me at the moment) Having said that, the oldest would have been 8 years ago, so I don't have the same 30years of experience

Re: [M100] Pi Model T?

t run TRS-80 software unless you wrote a simulator for it. Boot times would not be as fast as a M100, and you would have to be careful about backing up the SD card, as losing power could corrupt it. An interesting, long term project, but I am not sure of its use case. Kindest regards, Doug Ja

Re: [M100] Possible M100 prototype.

Officer, but I was pretty pleased when it worked. Direct Connect M100 - No need for my Acoustic Coupler any more!... Of course it didn't meet the Australian Standard for line isolation ;-) Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Follow my amateur radio adventur

Re: [M100] Model 100 Scientific Case ?

expect - Triac output / thermocouple inputs / Logic inputs. It is a very interesting piece. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Follow my amateur radio adventures at vk1zdj.net On Wed, 4 Oct 2023 at 11:50, Joseph Colson III wrote: > Hey Guys - Just a quick fol

Re: [M100] Size of posts with attachments

Hi John, That was my bad. In this modern age of smartphones, I'm used to taking a photo and simply sending it in an email. I don't have much visibility of file sizes. I'll change my workflow to send the photo to myself on my desktop so I can appropriately resize it. I've always preferred not t

Re: [M100] help! (as usual)

00 I >> have taken apart has had leaking caps. Oddly, every T102 I have taken apart >> does not have leaking caps. >> >> >> >> Jeff Birt >> >> >> >> *From:* M100 *On Behalf Of *Doug >> Jackson >> *Sent:* Wednesday, August

Re: [M100] help! (as usual)

one of it simply hasn't happened yet! Even if you don't have a replacement - simply removing it is critical. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Follow my amateur radio adventures at vk1zdj.net On Thu, 31 Aug 2023 at 10:01, Peter Vollan wrote: > Have

Re: [M100] I mortally wounded my Model T

The M100 power supply requires parts of the M100 to be working before it starts running correctly. From memory, it's the minus 5v rail. I'd start by ensuring that the backup battery was charged, and double checking all voltage rails. I'd also try a cold reset. Doug On Mon, 26 Dec 2022, 6:26 am

Re: [M100] Model 200 repair video

It's surprising that the via was ope. Even with a bit of corrosive gunk it shouldn't have gotten under the soldermask. On Sun, 25 Dec 2022, 10:46 am Daniel L, wrote: > Just finished. Great video as usual. > > On December 24, 2022 5:07:12 AM PST, bir...@soigeneris.com wrote: >> >> Hi all, >> >>

Re: [M100] Bitchin' 100 on Bing

To be actually serious for a minute. There is a reason for my flippant 'What's Bing' comment - It is an extremely unreliable search tool that a surprisingly large number of people ignore. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 On Sun, 13 Nov 2022

Re: [M100] Bitchin' 100 on Bing

Whats Bing? Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 On Sun, 13 Nov 2022 at 13:19, Carlos Nunez wrote: > FWIW, I just tried searching for this term: > > model 100 bitchin100 > > On Google, Bing and Duck Duck Go, and all three returned many results. &

Re: [M100] is the m100 a trs-80? In walks like a, not is categorized as a

Just to fix a small error, the trs80 Model 100 is 8085 based. Doug On Thu, 29 Sept 2022, 10:13 pm Stephen Adolph, wrote: > And to add to the confusion, there are 2 M100 in the world that actually > do use a Z80! > > On Thursday, September 29, 2022, Justin Poirier > wrote: > >> TRS-80 starts fo

Re: [M100] How to shadow the RAM with own RAM from the system bus bay ?

believe this practice is now common enough that some modern flash devices are often provided in dual pinouts (one reversed) to increase density. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 On Thu, 25 Aug 2022 at 05:12, MikeS wrote: > I've mounted chips 'upsi

Re: [M100] 8201A Internal Battery Questions

That's what I use. Works a treat On Sat, 15 Jan 2022, 7:30 am Peter Vollan, wrote: > many people like a Supercap > > On Thu, 13 Jan 2022 at 21:47, Alex // nytpu wrote: > >> On 2022-01-13 08:40PM, Gregory McGill wrote: >> > Also emailing me when I'm out of stock on something gets much faster >>

Re: [M100] Tpdd reassemble

I used a small drop of blue tac on the floating buttons, and had to assemble the drive upside down. It was a real pain Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net

Re: [M100] Cassette woes

Hi John, Thats fine. I try not to share links, as they are transient in nature, and don't help in my email archives. Websites disappear all the time, but what I sent does not - Thats ok and I won't send any more files on this list in the future. Doug Kindest regards, Doug Jack

Re: [M100] Cassette woes

at when you play it back. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net --- Just like an old fashioned letter, t

Re: [M100] Cassette woes

have to fix. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net On Tue, 20 Jul 2021 at 12:15, Jerry Davis wrote: > As others have said, and it's my experience as w

Re: [M100] Removing screen protector

It is a plastic insert that is held in place with non reversible, solvent based adhesives. Removing it is very likely to result in cracking Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio

Re: [M100] Happy Earth Day from my M100

ephones and BBS machines, and computers I should not have been playing with - But you have to ground a career in Information Security somehow :-) Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventure

Re: [M100] Happy Earth Day from my M100

d Why don't they see that I'm not behind them... I'm out in front *running freeoutside the lines* It would be nice to have a friend who colored outside the lines, sometimes, too... Would you? Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesom

Re: [M100] Packet radio like it's 1987

es and we could touch things in the car without police having a hernia. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net ---

Re: [M100] Packet radio like it's 1987

st regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net --- Just like an old fashioned letter, this email and any files transmitt

Re: [M100] Packet radio like it's 1987

>From memory the SCC could help out with the encoding which was something like HDLC or SDLC.. that's rattling my brain cells though. I remember that the Tnc2 had a state machine to do that. Doug On Thu, 15 Apr 2021, 8:05 pm Alex ..., wrote: > What would the Zilog SCC have gotten you? A coupl

Re: [M100] Does anyone actually use MFORTH?

w Facebook group will help :-) Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net --- Just like an old fashioned lett

Re: [M100] molex ic socket

Hi Brian, Wonderful - Thank you very much My address is: Doug Jackson 5 Pinschof Place, Conder, ACT, 2906 Australia Just let me know now much and I will merrily paypal that. This lets me recover from a foolish trainee decision when I was much younger :-) Doug Kindest regards, Doug Jackson

Re: [M100] molex ic socket

x27;t ship to Australia - so I would have to use my forwarder there at $40 odd and that get stupidly expensive. Would you be willing to sell me one and put it in a padded envelope for shipping down under? Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my aw

Re: [M100] printer port

Thats weird The connector is wired so that you can crimp on a 36 way 'Centronix' connector on one end, and a 26 way IDC socket on the other end and just plug it into a centronix compatible printer. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awes

Re: [M100] Another pi thing

Yet another x86 SBC. But with added blinky!!! Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net --- Just like an

Re: [M100] adding 4xAA NiMH to M100

for lots of interesting things, including talking to a Nicolet Z80 pod when debugging other machines. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net

Re: [M100] M100 overclock

Hi Stephen, Updates are always welcome - You are not the only one :-) Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net

Re: [M100] low VEE voltage - help me?

repair - but when you find it it will be extremely satisfying. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net On Sat, 17 Oct 2020 at 13:26, Jim Anderson wrote

Re: [M100] Model 100 Boot Issue?

al is absolutely oscillating. You can simply check by gently lifting one leg of the crystal, and your 2.458 Mhz signal will go away. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zd

Re: [M100] European T102 - different!

s the device was explicitly tested it was not allowed to be connected. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zd

Re: [M100] No politics, no kiddin' / Discord Audio?

el2, Model 100. And, yes, the ClassicCMP bot is there looking for messages. It is there if anybody is interested. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 On Fri, Sep 18, 2020 at 5:52 AM RETRO Innovations wrote: > No matter the choice, people will have varied co

Re: [M100] A vote for IRC

dio stream out of it - That would be an interesting client to write.. Doug Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at

Re: [M100] REXCPM orders.

Hi Steve, That would be wonderful - WOW! Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net --- Just like an old

Re: [M100] With apologies; battery question

And when you install them, be very careful to put a sticker on the back of the device to remind you to remove them in 10 or so years. They will eat tracks from PCBs if left to leak. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at

Re: [M100] With apologies; battery issue

ndest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net --- Just like an old fashioned letter, this email and any files transmitted

Re: [M100] M100 Digest, Vol 115, Issue 24

is common to meet a friend, and say "How u goin you mug", or "what are you up to ya bastard', but I understand that in the UK that may be offensive. We have to treat people with gentleness. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out

Re: [M100] TPDD logic board errors

Brian, You're absolutely right - The original use case they were designed for likely saw no switch movement. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zd

Re: [M100] TPDD logic board errors

Thats awesome news. Sadly, that application is an abuse for that type of DIP switch - it is designed to be set and left alone inside a piece of equipment. Great to hear that you sorted it out. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at

Re: [M100] TPDD Disk Imaging?

kshop bench was spectacular. Alcohol worked a treat :-) While there are beautiful solid state versions of the TPPD now, but the concept of a drive that clicks and whirs is very appealing to me, Just like the 8" drives in my PDP11. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0

Re: [M100] Noisy T102

Yea, >From memory, the display *must* be plugged in for the unit to beep. The software blocks on waiting for it to be ready during the initialisation. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amat

Re: [M100] REXCPM update

HI Steve, Absolutely wonderful - Thanks for making these, they really help the community Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net

Re: [M100] REXCPM orders.

It certainly is. Please put me down for one and an adaptor :-) Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net

Re: [M100] REXCPM orders.

Hi Stephen, How awesome. I would love one, but, remember, I changed the Molex socket out for a standard socket when I was a trainee (many years ago), so I could plug other items into it. Is it possible to provide one with pins, like you did for my original REX ? Doug Kindest regards, Doug

Re: [M100] Definition of CBM requested from calcmandan (me )

I assumed it was Commodore Business Machines (Another awesome vintage line of machines) Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net

Re: [M100] Black and Silver M100?

Getting silver paint even is really hard. On Sun, 3 May 2020, 7:47 am Brian White, wrote: > I like it. I wouldn't DO it today, but I like it and might have done it > back at the time. > -- > bkw > > On Sat, May 2, 2020, 5:40 PM Jeffrey Birt wrote: > >> Hi all, >> >> A kind soul gifted this inte

Re: [M100] CCR-82

I'm not confident that the capacitors will need replacing. There are two factors at play here. Firstly... in the PC era a major manufacturer of capacitors had a failed run with a stolen electrolyte. That caused major issues for 5 or so years as devices failed with cap issues. That's not normal.

Re: [M100] AMPRNet

I used to be. Vk1zdj. I had a range ... From memory... 44.136.7.9-15 But all the AMPRNET gateways here in the ACT appear to be gone. Doug On Sun, 19 Apr. 2020, 10:17 am me, wrote: > > Anyone on the list active on AMPRNet >

Re: [M100] DVI cable length

Sigh... Sadly it is from.an era long before small system standards. How cool would the world be if we could have standardised on a single floppy format. We couldn't even get RS232 right On Sat, 14 Mar. 2020, 10:56 am James Zeun, wrote: > You know what, it's very tempting as I find solderi

Re: [M100] cassette

>From using one in their heyday, I keenly remember that I had to squint, and hang my tongue out just a couple of cm. But yea, tape speed and volume was always a massive issue. As was siblings overwriting tapes with ABBA music. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0

Re: [M100] Battery Question

Kurt, I'm sure it would be possible to adjust the threshold where the LED illuminates to match the new battery chemistry. It's probably a resistor change. Are you comfortable with soldering on the logic board? Doug On Wed, 13 Jun. 2018, 12:36 pm Kurt McCullum, wrote: > I've got several batte

Re: [M100] Is this for real?

Retro gear is just sometimes expensive. $4k for an imsai 8080 isn't unheard of. On 14 Feb. 2018 2:37 pm, "Chris Fezzler" wrote: I found it fun to buy computers from when the industry was battling with innovations and different form factors. A lot of real innovative engineers out there. On ‎Tu

Re: [M100] NiCad Replacement

Yep. We'll done I had a single board Z80 forth computer that died about 8 years after I built it because one of those NiCads leaked. It only had ribbed traces. Not full solder resist. So it had no chance. I automatically remove them from anything that comes my way before they kill it. Supercap

Re: [M100] Fwd: RAM issues continued

PM, "John R. Hogerhuis" >wrote: >>>> >>>> You linked to your cart which emptied. >>>> >>>> You probably need to post a link to the catalog / search result. >>>> >>>> -- John. Doug Jackson =

Re: [M100] REX second source

Hi Steve, I agree that transferring would be work. I feel that separating the hardware and software may be the path forward, especially if the hardware design is proven. My clocks use a 240mm square PCB that I source from Pcbcart. Experience has shown that they are cheaper than OSH part for

Re: [M100] REX second source

ngoing development / bugfix for the REX software stream? > >It would take some doing but maybe now is the right time to look for >someone with the interest, energy and hardware/software skills to take >over the project. > >comments welcome. >Cheers >Steve Doug Jackson ==

Re: [M100] M102 won't power on

- in the meantime, if the current one has a bit of green fuzz around the ends of the barrel, would it be risky to leave it plugged in in hopes of recharging a little? -- Doug Jackson Dougs Word Clocks.com Pty Ltd www.dougswordclocks.com

Re: [M100] 32k M102 suddenly showing 24k

You could poke directly at the relevant memory ranges and see if a corresponding peek shows the data On 5 July 2016 12:31:59 pm AEST, Josh Malone wrote: >Okay. Thanks for the hints. Anybody know any good RAM diagnostic >techniques >for a 102? It's been a long time since I've used a scope in ang

Re: [M100] Hello!

that your nicd is shot and needs to be replaced. You could check the voltage across it after letting it charge. -- John. -- "I will never in my lifetime make a film that cannot be seen by the whole family" Arther P. Jacobs -- Doug Jackson Dougs Word Clocks.com Pty Ltd www.dougswordclocks.com

Re: [M100] steps with CHIP

On 13-May-16 5:32 AM, Jeff Gonzales wrote: What's that dork doing on the CHIP home page? The guy on the front page is using his CHIP computer with the optional color LCD display module to experiment with simple Virtual reality using a VR headset - From the look of it is is probably Google

Re: [M100] No modem in my Model 102?

to operate.It worked reasonably well, but was never perfect. Doug -- Doug Jackson Dougs Word Clocks.com Pty Ltd www.dougswordclocks.com

Re: [M100] Question

trs 80 model 100 to a Mac OS X laptop? Any help would be appreciated, thanks! -- Kindest Regards, Doug Jackson Dougs Word Clocks.com Pty Ltd ACN: 159 352 753 35 Fred Lane Crescent, Gordon, ACT, 2906, Australia em: d...@dougswordclocks.com ph: 0414 986878 web: www.dougswordclocks.com

Re: [M100] Model 100 Bar Code Wand

Hi Mike, This article covers it very very well - The Tandy reader is the same as this one, with a DB9 connector. http://www.mh-aerotools.de/hp/bc-reader/BarcodeReader.pdf Doug On 20/06/2015 8:02 AM, Mike Hamilton wrote: Doug Jackson wrote, in relevant part: "I have both the TRS80

Re: [M100] Barcode Wand

TRS80 wand and the HP in storage here if anybody wants information. Doug On 19/06/2015 6:56 AM, Kurt McCullum wrote: Does the barcode interface use a TTL level signal? Meaning any TTL barcode scanner that is wired properly could be used? Kurt -- Kindest Regards, Doug Jackson Dougs Word

Re: [M100] Club100 / REX Orders WAS Received my REX...

ld be appreciated :-) Doug -- Kindest Regards, Doug Jackson Dougs Word Clocks.com Pty Ltd ACN: 159 352 753 35 Fred Lane Crescent, Gordon, ACT, 2906, Australia em: d...@dougswordclocks.com ph: 0414 986878 web: www.dougswordclocks.com