On 03/31/2017 06:15 PM, Jon Elson via cctech wrote:
> I have a project I do from time to time using 128-lead 14mm TQFPs
> with 0.4mm lead spacing. I use a stereo zoom microscope with a
> home-made LED ring light. First, I rub the pads with a pencil eraser
> to remove oxidation caused by reflow tem
On 3/31/2017 12:51 PM, allison via cctech wrote:
Is this something that an experienced hand can manually do?
I can verify that it is indeed possible. I lay down xc95144xl-tq100s
all the time with my iron and some flux and some wick, and I get nearly
100% rates. My eyes are not what they use
On 03/31/2017 06:28 PM, allison via cctech wrote:
Is this something that an experienced hand can manually do?
Yes, definitely. 100 lead PQFP is perfectly doable if the lead pitch is not
insanely small. It takes a good fine tip soldering iron (mine is a Weller with
a PTS tip), fine solder (p
On 03/31/2017 02:00 PM, Paul Koning wrote:
>> On Mar 31, 2017, at 1:51 PM, allison via cctech
>> wrote:
>>
>> On 03/31/2017 06:32 AM, David Griffith via cctalk wrote:
I'm down to the last few P112 boards for sale and am pondering
another run of them because demand is steady. One of the
> On Mar 31, 2017, at 1:51 PM, allison via cctech wrote:
>
> On 03/31/2017 06:32 AM, David Griffith via cctalk wrote:
>>>
>>> I'm down to the last few P112 boards for sale and am pondering
>>> another run of them because demand is steady. One of the biggest
>>> challenges for the last run was
On 03/31/2017 06:32 AM, David Griffith via cctalk wrote:
>>
>> I'm down to the last few P112 boards for sale and am pondering
>> another run of them because demand is steady. One of the biggest
>> challenges for the last run was getting the QFP-packaged 100-pin
>> chips[1] in a state such that the
Original message From: Christian Corti via cctalk
Date: 3/29/17 3:29 AM (GMT-06:00) To: Evan Koblentz
>On Tue, 28 Mar 2017, Evan Koblentz wrote:
>> "What do an Apple 1, Commodore 65, >>Enigma Machine, and the inventor of C++
>> all have in common?"
>They're just overestima
I thought the Vintage Computer festival west link might have recommended hotels
but I couldn't find anything for you.
I did a similar trip but needed to be quite a few hours south for my actual
destination. I didn't find a very cheap hotel either, and the under $100 one I
did find near long Beac
Can anyone who's been inside an Intellivision confirm that there's supposed
to be a little foam disc beneath the reset switch plate?
I picked a system with a box of cartridges up earlier, half expecting the
machine to be dead (I was figuring it was going to be a blob of
easily-dead-after-so-
On 03/31/2017 11:17 AM, Al Kossow via cctalk wrote:
>
>
> On 3/30/17 9:29 PM, Chuck Guzis via cctalk wrote:
>
>> In the late 70s, on Evelyn in Sunnyvale, near Wolfe, I believe.
>
> That would be the original Halted location, Evelyn and Wolfe
>
> Halted moved to roughly laurence and central, th
Friends,
I have an instrument that has an intel motherboard with 400 MHz FSB PCI (not
PCI-e). It has a 100 mbps Ethernet card and it would be very useful to get
faster networking. The chassis of this instrument is such that I cannot fit a
traditional PCI 1GB Ethernet card (I've tried). So I wil
I'm looking for two items:
A VR241 to use with my DEC 380 as a colour head (even better if you have the
cable and a spare LK201, since I'm down to my last working keyboard). The
VR201 isn't cutting it anymore and I don't think I can use my VR260 with this.
An HP 6000 670H hard disk (the big one f
On 3/30/17 9:29 PM, Chuck Guzis via cctalk wrote:
> In the late 70s, on Evelyn in Sunnyvale, near Wolfe, I believe.
That would be the original Halted location, Evelyn and Wolfe
Halted moved to roughly laurence and central, then moved to 3051 Corvin
last year.
The previous building was demolis
> From: Brent Hilpert
> I don't have a full enough picture of the circuit and circumstances to
> provide a definitive suggestion but, some principles:
> ...
> It's not clear C-coupling is what's going on here (the wave shape looks
> pretty sharp for what I understand of the
On 03/31/2017 07:10 AM, David Bridgham via cctalk wrote:
Don't trust ANYTHING! Recent Xilinx FPGAs have permanent "weak
keepers" on all pins, they can not be turned off.
What this is is a non-inverting receiver on the pad, that is driving
back to the pad with about a 50K Ohm resistor.
Plays hob
On 03/31/2017 06:32 AM, David Griffith via cctalk wrote:
I'm down to the last few P112 boards for sale and am
pondering another run of them because demand is steady.
One of the biggest challenges for the last run was getting
the QFP-packaged 100-pin chips[1] in a state such that the
pick-an
> Don't trust ANYTHING! Recent Xilinx FPGAs have permanent "weak
> keepers" on all pins, they can not be turned off.
> What this is is a non-inverting receiver on the pad, that is driving
> back to the pad with about a 50K Ohm resistor.
> Plays hob with analog stuff like crystal oscillators. The
I'm down to the last few P112 boards for sale and am pondering another run
of them because demand is steady. One of the biggest challenges for the
last run was getting the QFP-packaged 100-pin chips[1] in a state such
that the pick-and-place robot wouldn't throw a fit about slight
difference
On Thu, Mar 30, 2017 at 5:05 PM, Rich Alderson via cctalk <
cctalk@classiccmp.org> wrote:
> and what there are are not
> easily within walking distance of good food (In 'n' Out does not qualify).
>
Them's fightin' words!
> Remember Haltek in Mountain View? (wasn't it at the dead end of Linda
> Vista? I bought my Tek 465 there.)
You don't mean Halted Electronics, do you? That should still be around.
I was passing through Sunnyvale on my way back south and picked up some
useful doodads at Weird Stuff, though it t
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