Quote:
Originally Posted by init4fun
 Hi Tubejunke ,
Any of these with the eye tube and a "leakage" function of testing are the ones you would want since they put a real 450 Volts DC on the cap under test . The really great thing about the C2 is that it only contained 5 capacitors and the recap of it cost less than doing a typical AA5 . It's a neat circuit in that it only uses two tubes , one is a rectifier and one is the eye tube itself . There are two 450 volt 8 MF electrolytics in a voltage doubler arraingement that take the rectified 220 VDC from the rectifier and turn it into the 450 V for the test . |
Gosh thanks man for leading me in the right direction and all of the specifics. This may sound ridiculous, but I have a Lambda C480-M regulated DC power supply unit that I have been trying to find some use for. It weighs as much as most vintage TV sets, so listing it in the classifieds didn't do too much good. Supposedly the military used these units and its almost crazy how tough the thing is built. There are 5 metal cased 6L6 tubes there along with several miniatures like 12AX7s and such. Really neat old piece given to me by my electronics professor who said he had it since he was a "kid" and now he is close to retiring.
Anyway, I wonder if I could use this to build more or less what you describe. My unit produces 400 Milli-amperes at 200 V.D.C. which is approximately where you are at before the doubler. Again, probably pretty ridiculous; especially if I were thinking this out from scratch, but the Lambda unit is already there without a use in the world other than as a back breaker.
Supposedly HAM radio people or home CB people might use stuff like this Lambda, so my efforts would probably be better spent finding related sites and unloading the thing and then seeking out a Heath-kit. That really seems like a must have item to me if they are out there for sale. This idea was just something that crossed my mind as by chance I have been tinkering with the Lambda lately. I bet it could be done though. Really, it is possible to duplicate just about anything electronic.