Product Details:
【Finished board】: It has been assembled and tested.
【DIY KIT】: You need to weld and assemble by yourself.
【Bare PCB】: Does not include any components.
There are two versions of output DC voltage: DC 200V or 280V (Optional)
PCB Size: 130mm * 70mm
DC±200V Version:
High voltage input voltage: AC 200 --- 265V
AC 200 --- 265V
Low voltage input voltage: AC 12V --- 15V
High voltage output voltage: DC 0 --- 200V
DC 0 --- 200V
Low voltage output voltage: DC 0 --- 12.6V (Adjustable voltage)
DC±280V Version:
High voltage input voltage: AC 280 --- 335V
AC 280 --- 335V
Low voltage input voltage: AC 12V --- 15V
High voltage output voltage: DC 0 --- 280V
DC 0 --- 280V
Low voltage output voltage: DC 0--- 12.6V (Adjustable voltage)
Tips:
1. This board can also be applied to other bile preamps. The high voltage output high voltage can be changed by replacing the Zener diode. The low voltage output board can be adjusted directly.
2. The high voltage output current of this power board is recommended to be less than 1A. Low pressure is recommended within 1.5A. The low pressure is up to 2A. More than 1.5A. LT1085/LM317 Pay attention to heat dissipation.
3. Output DC +/- voltage setting method:
For example: Grid gg tube Preamplifier is powered by +/- DC 200V. When supplying power for this version, Short the + and - points of the two sets of high-voltage output VDC-OUT to GND to form a DC +/- 200V.
Purchase link for matching transformer
https://brz-hifi-audio.com/products/30w-pure-copper-r-type-transformer-output-0-220v-0-14v-for-tube-preamp
