Hi ,
What values or Rp and Rk would be suitable for a preamp using 12at7 ?
Ive seen somewhere that 68k and 470 ohm would work well with plate voltage at 100v
Any suggestions of how to bias this tube vs 12ax7 or 12au7.
Does any one know of a setup where a toggle switch is used to select the Rk values , for each tube type, given a fixed Rp and plate voltage that will work for all?
What values or Rp and Rk would be suitable for a preamp using 12at7 ?
Ive seen somewhere that 68k and 470 ohm would work well with plate voltage at 100v
Any suggestions of how to bias this tube vs 12ax7 or 12au7.
Does any one know of a setup where a toggle switch is used to select the Rk values , for each tube type, given a fixed Rp and plate voltage that will work for all?
Comment