Potato Cakes
Well-known member
Hello, everyone,
For my v76m project which I'm slowly navigating through the information, I am thinking about the possibility of incorporating a tube compressor after the first gain stage. I am looking through a number of designs and I think I would like to explore the Federal AM864 limiter using a 6av6 tube. The one main thing the AM864 differs from the V76m is that it has a center tap output transformer, which I don't know is necessary for gain reduction in the audio path. I looks like it is just being used for plate voltage for the V3 output amplifier but I am not sure.
It looks like I could take a tap off of the plate on EF804s on the second stage to feed the grid of 6av6 that is used for limiting on the AM864. From there I don't know how to get the signal from the 6av6 back into the audio path for gain reduction. Could I just add the voltage reduction signal back before the grid of the E83F on the V76m after the 25nF cap?
Thanks!
Paul
For my v76m project which I'm slowly navigating through the information, I am thinking about the possibility of incorporating a tube compressor after the first gain stage. I am looking through a number of designs and I think I would like to explore the Federal AM864 limiter using a 6av6 tube. The one main thing the AM864 differs from the V76m is that it has a center tap output transformer, which I don't know is necessary for gain reduction in the audio path. I looks like it is just being used for plate voltage for the V3 output amplifier but I am not sure.
It looks like I could take a tap off of the plate on EF804s on the second stage to feed the grid of 6av6 that is used for limiting on the AM864. From there I don't know how to get the signal from the 6av6 back into the audio path for gain reduction. Could I just add the voltage reduction signal back before the grid of the E83F on the V76m after the 25nF cap?
Thanks!
Paul