FS : Battery Supply Tube Preamplifier (12V SMPS to 275V) - diyAudio
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Old 30th October 2006, 08:38 AM   #1
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Thumbs up FS : Battery Supply Tube Preamplifier (12V SMPS to 275V)

My tube preamplifier had made since 2005 JAN, and I still used it now but I want to redesign for complex circuit with 6DJ8 + JFET CCS

This board used 12V/5A supply with Switched Mode Power Supply Technology to transform voltage from 12V to 275V

This application also for line stage tube car preamp !

Quiet background and also isolated 12V input voltage from high voltage operation

I ask for 130USD (ECC83 SOVTEK 12AX7LPS + ECC82 12AU7 GE BLACKPLATE in straight forward schematic)

My pics are too large file, plz email me for them

analog guy
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