High Plate voltage on 6L6GC

[JD0x0]

I'm using a pair of KT88s in my D'Lite build. I like them a lot. I did have one Winged C go south on me with only 100 hours or so on it, though. Currently using a pair of Pentas that sound great.

What transformers do you have in there? I'm going to use KT88's for my custom build and i'm still not 100% on what trannys i should use

[greiswig]

I'm using a pair of KT88s in my D'Lite build. I like them a lot. I did have one Winged C go south on me with only 100 hours or so on it, though. Currently using a pair of Pentas that sound great.

What transformers do you have in there? I'm going to use KT88's for my custom build and i'm still not 100% on what trannys i should use

Twin-style Heyboer OT, and stock D'Lite PT. No issues with current draw. The only thing I changed was to install a switch for the grid resistors when switching back and forth between 6L6 and KT88/6550 types. See http://ampgarage.com/forum/viewtopic.ph ... reen#70401 for a lengthy discussion of the matter.

[drz400]

I am building an amp with a donated traynor PT. I am getting a plate voltage of 530Volts. I am assuming that this will kill 6L6GC's. Is there a meathod of lowering the voltage to 450? Should I switch to EL34's? If so the screen can only take 425v....how would I lower the voltage before it hit the screen?

You can run a small transformer as a buck wiring out of phase in series with the secondary, it will subtract, maybe a 30V will do. Or slap in power scaling and put a stop limit on it.

[JD0x0]

I'm using a pair of KT88s in my D'Lite build. I like them a lot. I did have one Winged C go south on me with only 100 hours or so on it, though. Currently using a pair of Pentas that sound great.

What transformers do you have in there? I'm going to use KT88's for my custom build and i'm still not 100% on what trannys i should use

Twin-style Heyboer OT, and stock D'Lite PT. No issues with current draw. The only thing I changed was to install a switch for the grid resistors when switching back and forth between 6L6 and KT88/6550 types. See http://ampgarage.com/forum/viewtopic.ph ... reen#70401 for a lengthy discussion of the matter.

Thanks man! that was really helpful

[j-po]

You can run a small transformer as a buck wiring out of phase in series with the secondary, it will subtract, maybe a 30V will do. Or slap in power scaling and put a stop limit on it.

Wouldn't the row of zeners route be much easier?