Hey everyone, thanks for always serving as a great sounding board and
source of advice!
I have an issue with a PDP8E which has an issue with the power supply.
The -15V, 15V, and 5V are good, and my Bus Loads board is good, but for
some reason the power supply is bringing down the 3.75V
Well... Finally figured it out! Found a lose solder blob shorting 2
pins on one of the motherboard ICs. That explains why I've been going
crazy trying to figure out why it's been so random and intermittent.
Thanks everyone for chiming in, and helping out!
On 1/1/2018 6:12 PM, Nick Allen
/2018 5:34 PM, Nick Allen wrote:
cleaning the connector pins with a brass brush solved the issue,
thanks everyone!!
On 1/1/2018 5:03 PM, Nick Allen wrote:
Thanks for the tips everyone! I can confirm power is GOOD, and the
problem persists even without the RAM installed (Just CPU and MP-C
cleaning the connector pins with a brass brush solved the issue, thanks
everyone!!
On 1/1/2018 5:03 PM, Nick Allen wrote:
Thanks for the tips everyone! I can confirm power is GOOD, and the
problem persists even without the RAM installed (Just CPU and MP-C or
MP-S board). I am going
Thanks for the tips everyone! I can confirm power is GOOD, and the
problem persists even without the RAM installed (Just CPU and MP-C or
MP-S board). I am going to clean the buss connectors and see if it helps!
On 1/1/2018 12:32 PM, Nick Allen wrote:
Hey everyone, Happy New Years! I am
Hey everyone, Happy New Years! I am thankful for an active community
that enjoys helping each other learn, and today I am coming with an ask
for help.
I have a SWTPC 6800 and ADM3A terminal, I can get it to boot, and when
it boots it will continue to boot for several hours. But getting it
I am almost complete in fixing my Xerox Alto (been a 7 year journey,
have the power supplies, CRT, and boards all working). I can get the
Alto to run the microcode to boot, but my disk drive is not working so I
can not boot (looking into Network boot with Carl, but this is not yet a
wow impressive work Brad! Thanks for blogging about it, it's fun to
watch you progress. Ever consider selling some of the PCB boards, and
coming up with a BOM list, so we can recreate some too?
I have built as reproduction Mark8, as accurate as possible. Check the
link out below to see photos. Would be happy to help you in your
journey to building a complete system, let me know I can help!
https://goo.gl/photos/X6rXFrVMoJvRXGAe7
-Nick
Hey everyone, just got my Apple1 powered up!!! The PIA is hot to the
touch, I heard they run hot, how hot is too hot??
Looking for an Apple II keyboard to convert for use on my Apple1. Anyone
have one for sale or trade?
Thanks!
-Nick
Looking for help identifying these 2 pieces of Massey Dickinson equipment.
I was told this machine is a trainer of sorts, but have my doubts:
https://goo.gl/photos/ktBMTiYXxLZd8dH1A
But per the research I have done, the only reference of Massey Dickinson
and PDP8s are for Data Acquisition, I
here are some close up photos:
https://goo.gl/photos/1hxkfkei4jKoWXtP8
https://goo.gl/photos/jhaqLndqbkqX4kV68
https://goo.gl/photos/dmZVBV3gwGJqSZK58
https://goo.gl/photos/sKJorbim7eRTsdVQ8
https://goo.gl/photos/sy6UcUCCPnRHB4ic8
On 10/29/2015 5:28 PM, Nick Allen wrote:
Looking for help
Here is a link to my TV Typewriter, you can see the mfg info for the
keyboard which was included. I know this isn't the keyboard you are
looking for, but is a period correct keyboard:
You are correct Brad, access is from the bottom. The bottom is exposed,
not bottom cover.
Hey everyone, I am looking for some vintage Gold-Lead clear LEDs that
light up red for a Scelbi project I am working on for VCFMW. Will need
29 of them if you have them, willing to trade or buy them, thnx!!
-Nick
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