Posted by Damir [ 213.202.96.117 ] on January 22, 2006 at 05:18:28:

In Reply to: 6EM7 amp PSU question posted by Shane on January 22, 2006 at 00:14:43:

See this variant - choke input filter (10H/100 Ohms/200mA) with "tuning" C1=1,5µF/600V (MKP, MKT...), then C2=220µF/450V electrolitic.
Bypass C2 with "bleeder" resistor, Rb=27kOhms/5W (it draws 8mA).
Then split for two channels - L2/C3 + R1/C4 for the L channel, and identical LC+RC filter for the R ch.
You`d get about 213V for the output stage, and 207V for the driver.
Of course, Rtr is a guess, and maybe you`d need to adjust the value of C1. Caps C3 and C4 can be "motor run", or MKP/MKT, 400Vdc ratings.
BTW - if you choose to build it, you can post on "Group Build" (Tube DIY) forum...

Replies:

• Damir--help! - Shane 16:43:48 01/22/06 (7)
  • Re: Damir--help! - Damir 01:05:38 01/23/06 (2)
    • Thanks- question about D1 current - Shane 22:57:59 01/29/06 (1)
      • Re: Thanks- question about D1 current - Damir 07:43:21 01/30/06 (0)
  • Re: Damir--help! - PakProtector 17:07:16 01/22/06 (3)
    • Thanks ! - Shane 19:53:03 01/24/06 (2)
      • Re: Thanks ! - PakProtector 19:15:28 02/06/06 (1)
        • Interesting (nt) - Shane 12:06:17 02/07/06 (0)
• Re: 6EM7 amp PSU question - Shane 12:29:47 01/22/06 (0)