Radio Road

Thanks for the info!

68.7.9.132

Cougar

In Reply to: RE: IF it were me, I'd contact Mike and ask him if the output valve (the 12AX7?) posted by Timbo in Oz on November 11, 2018 at 14:21:51

I did some research after I had posted this and found out that I'm good with the preamp I'm using and it has a 100K input. But it was good to see that post to alert me about tube outputs being used with solid state inputs that there could be issues.

Follow Ups:

good! - Timbo in Oz 15:20:51 11/12/18 (3)
My current pre-amp USED to be an Allen Wright Electronic FVP aka 4 valve pre!
It used a 12AX7 in CF for its output after the VC. Even the line in tube was!!!!!
???? yep.
It doesn't anymore, it's a 12AU7 in CF mode which are blameless and the line tube is a 12AT7.
It has a BIG, remote, regulated PSU, and it doesn't hum anymore!
Kvyet it is, too!

Warmest

Tim Bailey

Skeptical Measurer & Audio Scrounger

Edits: 11/12/18
- Nice! - Cougar 17:55:15 11/12/18 (2)
  I always wanted to build the Allen Wright FVP5 preamp with the super regulators. I hear that was one very nice sounding preamp along with its phono section!
  - I borrowed an FVP5 while my FVP was being done up. - Timbo in Oz 18:16:35 11/12/18 (1)
    Mine is better, the remote PSU being the main factor. The DC HT is regulated and the DC heaters.
    
    The RIAA stage embodies all of AWE's ideas. A mixture of film caps were used.
    
    We didn't go to Vishay laser trimmed Rs, but did use some Holcos for RIAA, IIRC the rest are 1% selected MFs with twice the wattage of the originals. Same wit the RIAA stage.
    
    This helps with noise, I'm told.
    
    It's in a QUAD 22 box, so no room for a PSU anyway!
    
    The VC is an ALPs
    
    Warmest
    
    Tim Bailey
    
    Skeptical Measurer & Audio Scrounger
    - IME simpler is always better, with pre-amps, so long as you get it quiet. - Timbo in Oz 00:45:58 11/17/18 (0)
      Switching absolute polarity from the listening seat, is far better than walking over to the pre-amp and back to yr seat.
      
      So, I do it at spkr/power level.
      
      Warmest
      
      Tim Bailey
      
      Skeptical Measurer & Audio Scrounger

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