In Reply to: Do you need PSE ???? posted by drlowmu on May 26, 2012 at 05:45:58:
Forget 6B4Gs, they require DC on the filaments, which asymmetrically biases the filament.
If the asymmetry of a static 2.5V DC shift in bias from end to end bothers you then how do you explain the good sound of the dynamic 7V shift in bias for the AC heated 2A3?
I prefer AC filaments but unless someone can present a compelling argument, I call the bias shift claim for the inferior sound of DC "bunk" since 60 times a second you have a range of bias shift with AC that is 2.8X that of DC.
dave
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: Do you need PSE ???? - dave slagle 15:53:32 05/26/12 (10)
- ... "bunk" ... so you think ??? - drlowmu 15:04:55 05/28/12 (3)
- DC Vs AC filaments aside ... - Naz 00:20:10 05/29/12 (0)
- RE: ... "bunk" ... so you think ??? - dave slagle 18:56:04 05/28/12 (1)
- RE: ... "bunk" ... so you think ??? - drlowmu 07:44:59 05/29/12 (0)
- RE: Do you need PSE ???? - Tre' 11:01:35 05/28/12 (2)
- RE: Do you need PSE ???? - dave slagle 19:20:30 05/28/12 (1)
- phase cancellation? - shane. 02:24:01 05/30/12 (0)
- RE: Do you need PSE ???? - drlowmu 16:40:55 05/26/12 (2)
- Not Quite Right... - Triode_Kingdom 05:54:06 05/30/12 (0)
- you CAN"t be serious ... - mikeyb 10:00:25 05/29/12 (0)