[Techtoolslist] Kool Tools: IC Comparator checks PROMs

[Andy Welburn]

Sorry for the double post, and I'd also like to add that the HP uses DIP
switches that you flip for in/out pin configuration not jumpers as John
mentioned. I assume the bugtrap is doingthe same thing, lighting up on
outputs on a compare error...

Like everything else on your bench, and as Kev (moverman) says on his page
its not a 100% definitive tool, but is a good time-saver, and to be used
like all other tools on your bench, to help you find faults. 

Just thinking about it, it does have two drawbacks, one is that it doesn't
do tri-state devices (so I guess that rules out some types of proms) does
the bugtrap? The second one is that it only does 14 or 16 pin IC's, which
can be annoying when you want to check 20pin buffers etc.. 

Anyhow, I'm rambling.

Andy Welburn
www.andysarcade.net


> -----Original Message-----

> From: techtoolslist-bounces at flippers.com [mailto:techtoolslist-

> bounces at flippers.com] On Behalf Of Andy Welburn

> Sent: 25 February 2006 16:05

> To: 'Technical Tools Mail List'

> Subject: RE: [Techtoolslist] Kool Tools: IC Comparator checks PROMs

> 

> You can make one IC board per board if you really wanted to, but every

> single 10529A was shipped with a ZIF board AFAIK, virtually everyone that

> turns up on ebay in its box has the ZIF board.

> 

> So in actual fact, the HP is more compact than the Bugtrap, and you don't

> need to supply 5v via fly leads as the HP takes its power from the IC

> under

> test..

> 

> I've been using the HP for years, pretty invaluable, but I've never tried

> it

> with proms, good idea tho, in theory it should show up comparison

> differences the same that a bugtrap does.

> 

> Andy Welburn

> www.andysarcade.net