The tubed phono pre at MCS's site

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mcs

mcs

Well-known member
Joined
Jun 4, 2004
Messages
1,017
Location
Denmark
It should work, but you may need a regulated supply for minimum noise. I use a simple two transistors and a zener circuit. You could use an LM317HV or a TL783 also.

And unless you have the 6SN7/6SL7 tubes I would use the 12V types...

Best regards,

Mikkel C. Simonsen
 
I came up with this power supply many years ago...

http://stiftsbogtrykkeriet.dk/~mcs/Phono/PHOPSU2.gif

Complete with "assembly manual": :green: http://stiftsbogtrykkeriet.dk/~mcs/Phono/PHOPSU.gif

It was made for a cheap Hammond transformer (200V and 5V), which is not an option here (only 117V primary).

Best regards,

Mikkel C. Simonsen
 

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