ANK M2 PSU regulator board one piece for M3 phono or other low noise preamp !

Description

This is the bare PCB of a tube regulator board with reference to ANK M2. M2 regulator board is used with ANK L2 and L3 phono boards.
The design uses a 6X5 rectifier tube and a ECL82 tube.
PCB dimension : 132mm x 152mm
PCB thickness : 1.6mm
Copper thickness : 70um, Gold-plated surface.
Input voltage : AC300V-0-300V 50mA, AC13.6V - 15V 1A
Output voltage : HT section --  +260VDC+/-3% with default resistor divider value. The board has the provision to use a trimmer pot instead of the fixed resistor to adjust voltage to meet user need.
Filament section -- dual +12Vdc 500mA ( can be configured to +6V when 6V regulator chips are used instead).
We provide schematic and part list to buyers by EMAIL.
The assembled board pictures here is for reference. The listing is for BARE BOARD one piece.
We do air shipping worldwide at US.00. We welcome combine shipping.
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