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This is a bare PCB of a low noise , tube based tone control stereo amplifier by means of two low noise triode tubes 12AX7. The configuration is based on the legendary Baxandall type which is well proven in performance and sonic quality. The finished board can offer both bass and treble control. The board is designed with high quality components in mind, including Wima film capacitors, silver mica capacitors,Philips electrolytic filtering capacitors, low noise metal film resistors and Mallory decoupling capacitors. Being a bare PCB, users can put in their components of their preference.The board only requires a +250Vdc input voltage and 6.3V filament voltage. It works well with our tube and filament regulation board in another listings.Board thickness : 1.6mm, gold plated surface
PCB Dimension : 112mm x 112mm
Finishing : double-sided solder resist for best durability and reliability. We provide schematic and part list by email to buyers. We do air shipping worldwide at US$6.50. We welcome combine shipping. 
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