ampage
Tube Amps / Music Electronics
For current discussions, please visit Music Electronics Forum. New: view Recent Searches.
New: visit Schematic Hell!
The sunn still shines online!

 
Listen to great tunes streaming live right now!

ampage archive

Vintage threads from the first ten years

Search for:  Mode:  
  View Thread

blown PT ?

6/1/2000 4:45 PM
john hermsen
email
blown PT ?
Hi everybody,  
 
Just bought a london city (a 70's dutch marshall clone) and was about to turn it in an dumble-ish kind of amp. Anyway after stripping the whole thing and building the powersuply i noticed that between the two hv leads there are 410 volts but there is no voltage to the centertap or ground. Could it be that this pt has no centertap? Can just the centertap burn out? Btw the filament powersection is ok.  
 
Thanks for any help, john  
 
Btw the pt looks like this, one side 220v in(black white) also two blue wires one went to ground the other is biassupply. Other side two filamentsuply wires (yellow) and two red hv wires and one green wire (Centertap?)

 
Replies:
Stephen Conner Hi John,Your PT pro... -- 6/2/2000 2:31 PM