Best way to toast TTL

Before I write to the group, Kurt Klemm, if you read this please try sending me a message on my web forum at http://www.stockly.com I am getting your e-mails but based on them it sounds like you are not getting mine! : ( --- Now to the rest: I'm wishing I've kept all the broken TTL chips over the years... I am evaluating a TOP2004 programmer for testing TTL chips. I bought it off of ebay from http://www.mcumall.com/comersus/store/comersus_dynamicIndex.asp I bought it on ebay because the price was cheaper. They are located in Canada and it took 5 days to get shipped to Alaska. Very well packed. The other TOP programmers ship from china/japan. I want to be able to recommend a TTL tester to my customers of the Kenbak kit. With 132 74xx TTL chips it would really come in handy! So far I think it does a good job. If I lift a signal leg on a 74LS04 it both can't auto detect anything and will report a 7404 as bad. I only have one known bad part, a 74LS376. It DID report it as bad and undetectable. What I'm wondering is if anyone knows how I can prematurely kill a TTL device or simulate static failure. I'd like to try to test how thoroughly the programmer tests the chips. It can't tell the difference between a 7410 and 7412, but that isn't too important for knowing the chip works (mostly) On a second note, I have successfully over clocked my Kenbak 500%. Its running happily at 5MHz. : ) Although it gets a lot hotter! I need heat sinks... --I suppose giving one 12v to simulate hooking up a power supply wrong? --Hooking 12v to a device normally powered at 5v? --Shorting out a buffer output? (I think some buffers are designed to be shorted out though) --Vehicle ignition coil to an input? : D Grant