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Ultralinear S.E. 6G6G and 807 (unconventional amplifier)

Ernst Erb Jürgen Stichling Bernhard Nagel 
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Forum » Technique, Repair, Restoration, Home construction ** » Home construction and general radio technique » Ultralinear S.E. 6G6G and 807 (unconventional amplifier)
Piermaurizio Lovisolo
I  Articles: 2
Schem.: 1
Pict.: 32
19.Jun.16 13:28

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Please find attached the schematic of my DIY Ultralinear S.E. stereo amplifier.

The driver is  quite unusual since uses old low power audio penthodes 6G6G to drive the two 807 connected in S.E. ultralinear mode.

the circuit uses negative feedback to reduce distorsion and to linearize bandwidth.

The output power is about 8+8 W RMS.