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In the Forum: Analog Playback
In the Thread: The last phonocorrector: “End of Life" Phonostage
Post Subject: Nice idea...Posted by FJC Corpas on: 2/10/2012
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I calculated the whole circuit and it looks each channel draw a total of about 3mA (could be even somewhat less). The second and third stage works like a whole and it´s very curious because I have seen this design before only in guitar amps in order to get a creamy sound (second order distortion). Obviously, in this case the values have been very smartly chosen (big load) to get a very interesting balanced sound . I assume this last stage transforms the phonocorrector in a different animal than the TdP design. Good job!
 N-set wrote:

PS if you want to have a separate supply resistors for two channles they should be 12k, 6k is for both channels.
you can have a look at the actual schematics of my copy.
N-Set, I don´t understand why I should use two 12K resistors (one per channel) instead two 6K. I´m using a stereo PS that split the current after the 0A2 tubes through two 6K resistors. Each channel will draw about 3.5mA, and I need about 280V in the B+ of the second/third tube. All look be ok for me…

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