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Old 14th October 2009, 07:35 AM   #1
nafunga is offline nafunga  United Kingdom
diyAudio Member
Join Date: Jul 2005
Location: Whitstable , Kent. UK
Default Maestro soya amplificador

Described as - 'S>Soya 811A Direct coupling Amplifier' (cct. attached) I built this after finding a pair of TZ40 valves. I used a 15K output transformer to suit. It worked well, but insufficient gain for my needs. I then tried the '811 SE Positive grid Amp.' (as attached) with much better results (with & without feedback). Anyone else played with these configurations?

Hope the attachments are visible!?

Any observations welcome,

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File Type: jpg s_soya.jpg (36.3 KB, 124 views)
File Type: jpg orenokairo.jpg (40.2 KB, 120 views)
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