Alexandru marian
Well-known member
- Joined
- Oct 13, 2014
- Messages
- 127
I'm thinking about trying ECC99 for the SRPP stage of my G9. I have the space (3U) and I have the power (3A from the trans). In order to reduce strain from the regulator I can build an additional 12V supply with its own regulator and heatsink.
First of all the cathode resistor will have to be lowered for a bit. That will be nice an easy, add the appropriate value in parallel to R29 plus a on/off switch (so ECC82 can still be easily swaped)
But my very limited tube knowledge stops here, and I don't know about R30. It would be quite difficult to mod this one as it is wired under the tube socket. I'd have to cut and resolder a lot of things to get in there (yeah my convoluted first try at p2p building)
Thanks!
First of all the cathode resistor will have to be lowered for a bit. That will be nice an easy, add the appropriate value in parallel to R29 plus a on/off switch (so ECC82 can still be easily swaped)
But my very limited tube knowledge stops here, and I don't know about R30. It would be quite difficult to mod this one as it is wired under the tube socket. I'd have to cut and resolder a lot of things to get in there (yeah my convoluted first try at p2p building)
Thanks!