One of the first mono block amplifiers I’ve made back in 1996 …
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Classic Williamson with 2 X 6SN7GT and 2 X EL34 (triode connected), this simply amplifier works really fine, with sweet and light sound, lovely midranges and deep bass. Later, I modified it, to use ECC 40 phase splitter and 807 (also triode straped) like output tubes.
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At the end, my expectations that ECC40 is really great double triode for audio applications are confirmed