The HP 10529a thread

One thing to consider is that the ICs on the individual cards can fail too. How would you know unless you desolder them or test against a known good IC in circuit?

At least with the universal card you can test the reference IC somewhere else (e.g. an IC tester or a TL866).

I used the HP in the past but now only use my BugTrap as it can test 20pin devices (still has limitations).

P
 
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One thing to consider is that the ICs on the individual cards can fail too. How would you know unless you desolder them or test against a known good IC in circuit?

At least with the universal card you can test the reference IC somewhere else (e.g. an IC tester or a TL866).

I used the HP in the past but now only use my BugTrap as it can test 20pin devices (still has limitations).

P

I put sockets in all my reference cards in case I need to pull chip to test or use same card for multiple chips. I will probably use machine pin sockets going forward even though it will likely be harder tieing gnd and vcc. This was probably already mentioned but I used this thread by DarrenF as the starting point for the cards https://forums.arcade-museum.com/showthread.php?t=314328

I have still be using universal card but once I get better knowing when and where to use it, I think my use of it will go down.
 
I dunno, In truth having to make up dozens of individual boards is daunting and pricey. Flipping a few dip switches on a universal board seems like a treat by comparison.
 
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I fabricated a rig, using a DIP clip and socket to be able to clamp onto the IC in the card and then use the socket side as the original IC, which can then be placed in another testing unit......
 
I dunno, In truth having to make up dozens of individual boards is daunting and pricey. Flipping a few dip switches on a universal board seems like a treat by comparison.


The time you spend figuring out what dips to flip (then having to keep track of them, and not make a mistake when using them) can be used to make an individual board. It's basically the same amount of work.

However in the latter case you don't need to worry about anything again after that. Just pop in and go. And far less room for error, because you set a dip wrong, etc. Murphy's Law.

And if you use the universal card, you still need to maintain a set of reference IC's. Why not just have them attached to individual boards in that case.
 
The time you spend figuring out what dips to flip (then having to keep track of them, and not make a mistake when using them) can be used to make an individual board. It's basically the same amount of work.

I hear you but I have a dead tree edition of the TI TTL book that follows the comparator everywhere it goes. Doesn't take much more then 10-15 seconds to setup. If I had to look up the data sheet in a web browser every time, I'd 100% agree with you.
 
i love my dead tree edition of my TTL book...

I actually HATE most all PDF(S) on line, the resolutions are horrid and you can't read them, this also goes for most arcade manuals :( ...
 
UIKC3ZK.jpg
 
I am releasing the Gerber files for all the cards (repros of the 16 channel dedicated and 16 channel universal, and the 20 channel dedicated and 20 channel universal). I will post the link as soon as I sort through the files and the web page is up.
 
I am releasing the Gerber files for all the cards (repros of the 16 channel dedicated and 16 channel universal, and the 20 channel dedicated and 20 channel universal). I will post the link as soon as I sort through the files and the web page is up.

Wow, awesome. Very generous of you. :) (REP'd)
 

Excellent. That is the one I just ordered.

I am releasing the Gerber files for all the cards (repros of the 16 channel dedicated and 16 channel universal, and the 20 channel dedicated and 20 channel universal). I will post the link as soon as I sort through the files and the web page is up.

That is straight up awesome of you. Not enough interest for just HSS to sell them?
 
That is straight up awesome of you. Not enough interest for just HSS to sell them?

Outside of this and a few other threads, the cards seem to be a niche product, and it doesn't make sense for people to have to reinvent the wheel that I already reinvented. HSS has a supply for those who don't want to get their own made but Joe has been super busy.
 
Or, for those using the universal card, just print this out and keep it handy as a quick reference guide. Much quicker/easier than looking up individual data sheets/spec's...

Yes, it's for the BugTrap, but still absolutely useful/relevant for the HP when you're just wanting to quickly determine which switches to flip on the card.
 
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