Is it possible...?
Can a stepped attenuator be implemeted somehow so that the first gain stage alone can be varied? I'd like something other than just a -20dB PAD on the front end. I want to be able to reduce the first tube's gain when it sees medium-hot signals so it's not always on the verge of crapping out, and it can be dialed in with more precision.
For example, with this configuarion, singing at a normal level into a U87Ai distorts the first tube.
As another example, I see how the Gyraf G9 is designed for some first-stage attenuation for rotary switch positions 1-4.
Thoughts?
(FYI - there is a 10k stepped attenuator between stages not shown in the schematic)
Can a stepped attenuator be implemeted somehow so that the first gain stage alone can be varied? I'd like something other than just a -20dB PAD on the front end. I want to be able to reduce the first tube's gain when it sees medium-hot signals so it's not always on the verge of crapping out, and it can be dialed in with more precision.
For example, with this configuarion, singing at a normal level into a U87Ai distorts the first tube.
As another example, I see how the Gyraf G9 is designed for some first-stage attenuation for rotary switch positions 1-4.
Thoughts?
(FYI - there is a 10k stepped attenuator between stages not shown in the schematic)