Twin Jet tube layout diagram???

  • Thread starter Thread starter moronmountain
  • Start date Start date
moronmountain

moronmountain

New member
Does anyone have a copy of this, or know where I can get one? The Bogner site used to have on for the regular Uberschall, but I don't see it any longer. I'm just curious which spots are used for each gain stage, phase inverter, blah blah blah on each channel, and if any of the spots prefers a balanced triode tube. I'm assuming Bogner uses Chinese 12ax7's stock, and Sovtek KT88's for the power section????? Any help/info would be greatly appreciated.

Stimpy
 
It's the same, except V4 is for Channel 1. And yes, those are stock tubes.
 
Here ya go! :thumbsup:

V1: Input tube for both channels, 12ax7
V2: High gain channel, 12ax7
V3: High gain channel, 12ax7
V4: Clean channel 2nd stage one triode only, Twin Jet Semi Clean 2nd and 3rd stage, 12ax7
V5: Loop, 12ax7
V6: Phase Inverter, 12ax7
V7 through V10: Power Tubes,Uberschall EL34, Twin Jet KT88
 
SLOgriff":2twa1aoe said:
Here ya go! :thumbsup:

V1: Input tube for both channels, 12ax7
V2: High gain channel, 12ax7
V3: High gain channel, 12ax7
V4: Clean channel 2nd stage one triode only, Twin Jet Semi Clean 2nd and 3rd stage, 12ax7
V5: Loop, 12ax7
V6: Phase Inverter, 12ax7
V7 through V10: Power Tubes,Uberschall EL34, Twin Jet KT88
And aren't there two cathode follower positions that need to be heeded here for high voltages? I think V3 and V5 or V4 and V5, not sure, please advise.
 
Thanks for the info. So was I correct on the Chinese pre's and Sovtek kt88's thing? What tubes, specifically output tubes has anyone tried in their TJ's that did well? Must be of the KT88's type.
 
Back
Top