Robinsonics
New member
- Joined
- Oct 2, 2013
- Messages
- 4
Hi fellow diy's,
I am building a pair of Redd.47 clones. I have searched hi and low and am wondering; is there any reason that I can't replace the grid resistor on V2 of a Redd.47 with a 1 meg log pot? Inserting a volume control at this point seems to be common with other preamps, the MILA and UA610 as examples. I understand that this will change the feedback gain control switch levels, and not allow me to drive the output stage hard, but if I want to lower the output and keep it clean without an attenuator after the output transformer, would this be a good idea?
If not, the Chandler Redd47 seems to use a pot (or stepped attenuator, depending on order) that is tied near the output transformer (looking at the available internal pics). Any comments on how this is implemented?
Cheers!
I am building a pair of Redd.47 clones. I have searched hi and low and am wondering; is there any reason that I can't replace the grid resistor on V2 of a Redd.47 with a 1 meg log pot? Inserting a volume control at this point seems to be common with other preamps, the MILA and UA610 as examples. I understand that this will change the feedback gain control switch levels, and not allow me to drive the output stage hard, but if I want to lower the output and keep it clean without an attenuator after the output transformer, would this be a good idea?
If not, the Chandler Redd47 seems to use a pot (or stepped attenuator, depending on order) that is tied near the output transformer (looking at the available internal pics). Any comments on how this is implemented?
Cheers!