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Richiek
Junior Member
Username: Richiek

Post Number: 29
Registered: 4-2008
Posted on Thursday, May 21, 2015 - 9:45 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
I have a D&A Phantom Triple State 10-tube that is blowing an Ohmite Z14 choke immediately upon key up with no audio. It's the choke closest to the back of the amp if that helps.
I am driving it with a SS 3900EGHP with less than 5 watts dead key.

Can anyone give me an idea of what might be happening?


thanks!
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Press_man
Advanced Member
Username: Press_man

Post Number: 852
Registered: 5-2008
Posted on Sunday, May 24, 2015 - 6:31 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Have the guy that's been in it in the past to go through it making a parts list and replace all the caps plus resistors and look for burns while he's at it. You could have a shorted or leaking capacitor or an open resistor or even a bad solder joint. Electronics will go bad over time, even if stored. Even with older CBs, say 15 yrs old, the caps are usually the first thing to replace when doing a refurbish.
73 Pressman

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