The HP 10529a thread

[caius]

Fabrizio, you've gone from "limitations" to "pretty useless" in the span of two posts . And I have a Bugtrap, so I don't have a dog in this fight. He's not spending your money!

You misundertood.I meant 'useless' for testing 20 pin TTLs!!!Not in the overall! Douglasgb made a great thing designing it, hat off to him!

P.S.
I have a Dug Trap me too, great piece of equipment

 

[mcdermd]

You wouldn't happen to have anymore 16-pin Universal cards, would you douglasgb?

 

[Smart Bomb]

Hello..I am in the 10529a club. It arrived yesterday. I had about 10 "cards" that came with it that does not have any chips in them. Am I supposed to install working chips into the cards? For example, am I to solder in a 7400 into one of the cards?

I did purchase a universal card (which has not arrived yet).

Im just wondering how I am to utilize the blank cards.

Tonight I will post pics of everything I got in the purchase.

 

[douglasgb]

Hello..I am in the 10529a club. It arrived yesterday. I had about 10 "cards" that came with it that does not have any chips in them. Am I supposed to install working chips into the cards? For example, am I to solder in a 7400 into one of the cards?

I did purchase a universal card (which has not arrived yet).

Im just wondering how I am to utilize the blank cards.

Tonight I will post pics of everything I got in the purchase.

Yes, install your most commonly used chip on the cards and configure them accordingly. Full details are in the manuals.

Also, all of the (blank) boards I have made related to the 10529 will soon be available through www.highscoresaves.com/douglasgb

 

[Matty-t]

Hello..I am in the 10529a club. It arrived yesterday. I had about 10 "cards" that came with it that does not have any chips in them. Am I supposed to install working chips into the cards? For example, am I to solder in a 7400 into one of the cards?

I did purchase a universal card (which has not arrived yet).

Im just wondering how I am to utilize the blank cards.

Tonight I will post pics of everything I got in the purchase.

This process is detailed in the 10529a manual you can find online. They're reproduction cards so you follow the same setup method. Keysight has the manual online. Try and use your cards for the most common parts you encounter.

 

[DAVE110674]

Hi guys
When will these be available again on the highscores website pls
Nothing is showing on there

Thanks

Dave

 

[douglasgb]

Hi guys
When will these be available again on the highscores website pls

Resupply order has been placed.

 

[Gudbix]

Possible to still order the repro 10529a board from you directly, along with a few test cards? I'm impatient and have had a hell of a time getting my hands on a decent logic comparator, so I'm starting to think I should just build the kit.

 

[douglasgb]

I am away until mid August but I think I have a few main boards left.

 

[fgm]

Impressive! If it's possible, I'm very interested in a kit or just the PCBs to build a 10529A repro.

 

[douglasgb]

Impressive! If it's possible, I'm very interested in a kit or just the PCBs to build a 10529A repro.

Possible to still order the repro 10529a board from you directly, along with a few test cards?

I just checked and in fact I sent all the boards I had to Joe at www.highscoresaves.com

 

[Gudbix]

Dang - any idea when they'll be available from highscoresaves?

 

[jacklick]

So I am currently working on fixing one of the original 10529As, it is a very early serial #1112A with 1971 chip date codes, and have read this thread probably 3-4 times by now. Crazy amount of good info, even if most of it is about the repro card, it helps with the original too.

Also have a later serial #2204A from @ 1986. Insane how long these things were made with very little, if any, change in functionality.

....
Edit: Also noticed some changes in the BOM from a 1975 Manual Changes update. I'll test those hopefully in the near future to see how they change performance. I can only assume it's for the better.

Edit 2:
Summary of Changes:
All 10k Resistors now 47k
220ohm Resistor now 51ohm
....

...
Yes, all the 10kOhm resistors in input ciruit of each channel of the logic comparator must be replaced by 47KOhm according to a manual change dated 1984....

So I haven't cracked open my late model one but the early one definitely has 10K resistors and the manual change supplement from 6/1/1986 says the change from 10K to 47K is only for serial prefix 1444A. I will probably open it up just to quench my curiosity but what would this change from a pull up perspective? example is R18-R21

edit>>opened the one that is serial #prefix 2204A and it does have 47K resistors. It also has a "series" #of 1444A on the main board so looks like the manual update is accurate. also has some 1987 chip date codes.

...

P.S.
It seems this logic comparator works better than HP10529A on certain devices like counters and shift registers.

Do you think this has to do with using LS TTL for the XOR 74L86 and Inverter 74L04 going from 30ns to 10ns gate delay? I know I have a least one bad 74L86 which I will replace with 74LS386 but thinking of just swapping out all the TTL for LS.

 

[jacklick]

So I just wrapped up repairing a 10529A and made a couple bad videos but this one's behavior was so weird, I had to post it in this thread.

My first repair, Part 1 (different video), I replaced two 74L86 with 74LS386. All was good until I reassembled it. It turned out the metal shield over the leds was causing an issue and replacing the two 7402s that were in ckt with replacement 74LS386 fixed it. If anyone has a clue on that, feel free to educate this layman.

Also, if anyone knows how to take apart the ic clip so I can shrink wrap the cable, that would be appreciated too.

 

[Verault]

I guess I am really late (several years in fact) to this thread... I didnt know it was here and started a new one the other day: https://forums.arcade-museum.com/showthread.php?t=467287

I am looking to get the universal zif card design that was being offered here originally. And maybe even the new made blanks. Id like to get the new comparator board that takes 20 pin ics too, but one thing at a time.

I checked the links to highscoresaves.com and they don't have any listings for the comparator boards. Must have sold them all out.

Does anyone have any or maybe the Gerber files so I can have some new ones printed up at Osh Park? Id prefer to buy the kit complete with all parts but I guess beggars cant be choosers..

 

[jetusenet]

If you can wait a couple weeks, I am having a run of the 16 pos. HP Comparator PCB's done which should be done soon but with the Corona Crap, I cannot even get a shipping quote anymore!

 

[Verault]

I can wait, but are you only running the single 16 boards? Do you have any universal boards? (dip switch board)?

 

[jetusenet]

Not at the present, I need to catch up on a few projects first but it is on the list......

 

[andrewb]

I can wait, but are you only running the single 16 boards? Do you have any universal boards? (dip switch board)?

Honestly, the universal board is not really worth it. It's kind of a pain in the ass.

You're much better off just getting a bunch of the single-chip boards, and populating them as you need them. Much faster, and less error-prone, as you don't need to reconfigure the dips for each chip, etc.

 

[mcdermd]

I dunno, I use the universal card 90% of the time.