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Assembeld Ground Grid gg Preamplifier + PSU Board + Transformer + Tubes
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Assembeld Ground Grid gg Preamp board + Power supply board + R-core transformer + tubes
Power supply board input voltage:
0-AC220V 0-AC220V 0-AC12.6V
(High votlage 200V-265V 50ma /low voltage 12V-15V above 0.5A all ok )
Preamp PCB Size: 132X132mm,
Power supply PCB Size: 130*70mm
Thickness: 1.6mm,
Copper thickness 50um.
This board is use 3pcs 12AU7 tubes.
This is assembeld and tested board.
(The R-core transformer two 6.3V need connect in series as 12.6V)
Package include: Assembled GG Preamp board X 1
Assembeld Power supply board X 1
R-core transformer X 1
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