Posted by PakProtector [ 64.12.117.9 ] on October 28, 2007 at 11:17:20:

In Reply to: What'cha have in mind? posted by Wayne Parham on October 28, 2007 at 10:19:22:

hey-Hey!!!,
I have been working out one for a while now. To do it with a single PS, I'd have to work out some details with Heyboer for winding one with a few electrostatic shields( to isolate the heater winding and primary from the HV). It would be easier with multiple dual-bay transformers( two chassis, yes? )

It is fairly simple, gain stage, pasive RIAA gain. First stage will use a pair of 6BK7's in parallel( -3dB in noise from a single ), and terminate with a single 6BK7 stage with a DN3545/2540 mu-follower CCS. Schematics soon I'd say...:)
cheers,
Douglas

Replies:

• Re: Phono pre - SteveBrown 15:56:30 10/30/07 (3)
  • Re: Phono pre - PakProtector 16:32:56 10/30/07 (2)
    • Re: Phono pre - SteveBrown 08:05:27 10/31/07 (1)
      • Re: Phono pre - PakProtector 14:53:49 11/01/07 (0)
• Re: Phono pre - Wayne Parham 15:37:50 10/28/07 (1)
  • Re: Phono pre - PakProtector 16:37:51 10/28/07 (0)