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FINALLY SOMETHING!

Posted by jellobrain on January 20, 2001 at 11:46:40

In Reply to: Re: Latest update posted by J Epstein on January 20, 2001 at 07:02:07:

Ok so I re-soldered EVERYTHING. I replaced a few wires and re-routed
a few. When I first turned it on there was a lot of popping and the
45(I only had one in, one channel) started going through a series of
lighting up and then going dim all this accompanied by a spiking
sound from the speaker. AND looking into the 45 it looked like it was
sparking on the inside! kinda like a bug zapper!!!!??? Well I said to
hell with it and let it go, finally after about 15 seconds things
settled down, the 45 stayed lit, no more sparking noise and the music
got louder!!! Ok so I am STILL not there, it is still very quiet and
very distorted. BUT this probably isn't the amp is it??? I think
maybe it is not being driven hard enough. Don't laugh, but my source
is a discman! I guess the amp needs what? 1.2 V input for full
output????? And MAYBE my 45 is just old. I got it used from
Tubeworld. They said it tested good, maybe not good enough! OK and
one last thing, I measured the voltage across the plate and the grid
while it was running (the 45) and it was around 160 VDC. Does that
sound right??? That is not a steady state sort of thing right? I mean
that voltage varies depending on if signal is flowing, right?
I guess it is obvious, I need a better source (and maybe a pre-amp??)
well it is on the way (a new "real" CD player) I ordered one of those
Rik Stoet modified Marantz, the CD 5000. It will surely be better
than what I have now! Ok and maybe i need to put in a NOS or almost
like new 45? Any other suggestions??? ( am really interested on an
opinion of the whole popping behavior of the 45??? Is this an
indication that the tube is on its deathbed???)

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