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-08 assembled & tested Shunt regulator, adjustable from 4V to 40V ,current from 125~250mA, specially for replace the orignal power supply of CD player, pre-amp, DAC, LM317 as current limit. Using K703 as the loading device to reduce the output impedance, have short circuit protection board size: L 80mm X W 72mm
A-13 bare board serial regulator, output + and – 15V, 1A, with rectifier and filter capacitor board size: L 88mm X W 60mm
GA-31B assembled & tested Output DC voltage: High 200V × 2 Filament 6.3V × 2 -15V × 1 -24V × 1 board size : 125mm×230mm
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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