A-09 bare board
Shunt regulator, adjustable from 7V to 70V, current from 138mA to 430mA,double side gold plated PCB
board size: L 120mm X W 90mm
A-09 bare board
Shunt regulator, adjustable from 7V to 70V, current from 138mA to 430mA,double side gold plated PCB
board size: L 120mm X W 90mm
TP-2 assembled & tested MOSFET power regulator board, same as TP-1 but constant current source using resistor instead of MosFet, Voltage adjust from 100V~350V by changing two zener diode, current output 200mA. Heater voltage selectable from 6.3V and 12.6V. board size: 220mm X 62mm
TP-3 assembled & tested MOSFET power regulator board, using MOSFETas voltage regulator, tube rectify 6Z4,constant current source using resistor, Voltage adjust from 100V~350V. Heater Voltage regulator (LM317) selectable from 6.3V and 12.6V board size: 220mm X 62mm (tube 6Z4 not included)
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