Details:
imitate Matisse circuit tube preamp High voltage stabilized power supply board
2mm thick double-sided gold-plated PCB
Default+280V output. Suitable for Marantz 7 and other preamp boards
Size: 106x75x2MM
Adjust the output high voltage value within the range of approximately+150-350V (please pay attention to capacitor withstand voltage and voltage difference). If it needs to be lower or higher, please change the component value according to the instructions
After being powered on with high voltage output, it gradually accumulates and rises, which reduces the impact on the electronic tube
Reminder:
1. This board is equipped with high voltage. When welding, be sure to pay attention to safety and do not touch the components on the board with electricity. Even after unplugging the power, the large capacitor on the board still carries high voltage. Please be sure to discharge it before touching it!!!!!!
2. From the perspective of voltage regulation performance and power consumption and heating, it is necessary to control the pressure difference (around 20V is ideal): DC250V output is required, AC200 input can be used, DC280V output is required, AC230 input can be used, DC300V output can be used, and AC270 input can be used, so that the pressure difference and power consumption are more reasonable.
3. The input main filter of this board is 450V withstand voltage, please note that the input voltage should be controlled below AC280V.
List:
WZ-17 power supply board x 1