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Neat.? I didn't know that they did that (and don't remember words to that effect that they did....) That being said, I had one that I bought that had the TD assembly removed completely. Wonder what

I should mention that I do not consider myself a collector.? I do not have (some exaggeration here) spotlights pointing at pristine equipment sitting on a turntable behind glass.? I have the

I had a great aunt, who was widowed, and only had one son, who died young.? Years ago when she died, the family was going through her stuff, and there where tons of photos, documents and the

"My question then is this. What should those of us with large collections of Tek and other electronic equipment do while we are standing? I have over 50 scopes, a large collection of rare cameras, and

Thanks for the valuable information, Tom. It tells us that replacing the bnc with an sma would not necessarily be a welcome improvement. Cheers Tom Sent from my iThing, so please forgive brevity and

I am part of the majority here that is aging out and pondering what to do with one's "stuff".... Part of the angst is when to let go. Too young and you spend time wondering what to do, leave it too

The 1502's BNC is, or should be, "magic". As Harvey White noted, the TD can be killed by static in a cable. Tek's solution was to have a shorting bar in the BNC socket. Before the cable is fully

You have little control over things once you're out of the picture. Things very much depend on the reason you have this equipment. Collector of rarities? Perhaps give to museum or other such

Be very very careful with the 1502. The tunnel diode (almost completely unavailable) is pretty much connected across the input.? The average cable can hold enough of a static charge to kill that

My question then is this. What should those of us with large collections of Tek and other electronic equipment do while we are standing? I have over 50 scopes, a large collection of rare cameras, and

I bought the unit Sphere was selling. But with the flooding it will be a while before I can play with it :-( The specs indicate a BW of 2.5 GHz. However, the BNC front panel connector is a significant

AFAIK, the TD was used in the pulse generator sub-system of the triggering system... of 'older' Tek scopes. (500? 400?) ... I think, 453,454 used a TD that way. AFAIR TD is used as a fast (relative to

IIRC, it's about a 680 ohm resistor driven from 5 volts, the base resistors are 470K when switched in. Harvey

Hello, I aquired 468 scope in mint condition, but with some problems.., 1. first power on, LEDs and fan working, but no traces, no HV voltage.., HV F809 fuse blown, Q1108 blown, L107 shorted Replaced

It's not always bad news. A few years ago a lawyer I know had to deal with the estate of a client who hoarded electronic and engineering "stuff". He asked me for help and also contacted the local

That's just messed up! -Dave Hide quoted text No I understand fully. Just did the same with my Dad's estate except it was 30000+ photos of aircraft and 200+ books on aviation plus a very large pile of

atmega tester don?t have enought current tor drive a 10mA TD. It will be seen as a low ohms resistor, 10 ohms aprox for a 10mA TD diode

Yes, I have a curve tracer too. I think that is John Hudak who is asking Now I?m trying to measure the TD capacitande. /g/TekScopes/album?id=260881 If you set low series resistor in

Thanks for that explanation Miguel. I knew there was a way to do this. I have a Curve Tracer, so I have not had to use your method. . -- Michael Lynch Dardanelle, AR

I use a 50ohms function generator and a simle octopus, Check shunt resistor for not exced the max TD rated current