SET Asylum

Posted by jellobrain (i) on January 21, 2001 at 17:12:30:

In Reply to: Re: checking voltage posted by J Epstein on January 21, 2001 at 14:18:10:

All those measurments were made with the tube in. AND yes the tube IS
bad, or at least NOW it is! Once I realized that(the tube was bad(now
the grid will not light up AT ALL)) I put in ANOTHER 45, ok so it
started up and worked fine. BUT about 3 or so minutes into operation
IT started to make poping sounds and sparking on the
inside!!!!!!!!!!!!!!!11 SO I turned it off and took it out and put it
BACK in its box (the first 45 was a used 1940's RCA ST-14 type, all I
have left are two much older Cunningham 345 balloon type that are FAR
to expensive to even dream about buring up!!) The only thing I can
think is the cathode resistors are not working properly, maybe
getting too hot, maybe they need heatsinks???? I don't know. But that
is about all I can figure out! The resistance on them measures fine
UNTIL I put them in the circuit and run them for a few minutes. SO I
ordered some ceramic type 10 watters, once they get here I will
solder those in and try again!

• Re: My only recourse J Epstein 18:24:12 01/21/01 (3)
  • The follies of first time DIYing jellobrain 12:02:56 01/22/01 (0)
  • The follies of first time DIYing jellobrain 10:58:57 01/22/01 (1)
    • Well, the good thing is: J Epstein 12:34:40 01/22/01 (0)