RE: differential input, single ended output

Posted by Eli Duttman (A) on December 8, 2015 at 18:34:45

In Reply to: RE: differential input, single ended output posted by rage on December 8, 2015 at 17:37:00:

You certainly can DC couple the 2A3's grid to a LTP plate. Notice in the preamp that the MOSFET source follower is DC coupled to the non-inverting plate.

That 500 V. of B+ makes for healthy sized LTP plate load resistors, which is good for keeping gain up and distortion down. 200 to 210 V. on the 'T7 plates and 3 mA. of plate current per plate sounds pretty darned good. A 6 mA. tail CCS is what you need.

Eli D.

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Follow Ups Full Thread

Topic - differential input, single ended output - rage 17:17:15 12/08/15 (17)

RE: differential input, single ended output - rage 17:08:47 01/10/17 (0)

There is a simpler way to do this. - Ralph 13:20:29 12/09/15 (0)

RE: differential input, single ended output - Eli Duttman 17:33:12 12/08/15 (13)

That's not a differential input - Triode_Kingdom 19:11:06 12/08/15 (10)

RE: That's not a differential input - rage 18:44:56 12/10/15 (0)

RE: That's not a differential input - Eli Duttman 21:06:29 12/08/15 (8)

RE: That's not a differential input - Triode_Kingdom 22:45:55 12/08/15 (7)

RE: That's not a differential input - JKT 09:39:10 12/10/15 (0)

RE: That's not a differential input - Eli Duttman 12:13:03 12/09/15 (4)

RE: That's not a differential input - dtut 14:24:30 12/13/15 (3)

RE: That's not a differential input - Eli Duttman 15:22:51 12/13/15 (2)

RE: That's not a differential input - rage 17:24:15 12/20/15 (1)

RE: That's not a differential input - beautox 00:46:38 12/21/15 (0)

RE: That's not a differential input - Stuben 08:56:53 12/09/15 (0)

RE: differential input, single ended output - rage 17:37:00 12/08/15 (1)

RE: differential input, single ended output - Eli Duttman 18:34:45 12/08/15 (0)

RE: differential input, single ended output - JKT 17:26:53 12/08/15 (0)

Follow Ups

RE: differential input, single ended output - Eli Duttman 18:34:45 12/08/15 (0)

RE: differential input, single ended output

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