-Dual High Voltage Power Supply Filament Filament Power Supply Kit Finished Board Power Board-

product descrtion

Two 5W voltage regulator tube pa positions are reserved on this power board for series connection. When the output voltage is required to be 200V, a 200W voltage regulator can be installed, and the other position needs to be shorted. When other voltages are needed, two identical or different voltage regulators can be connected in series. For example, when 250VDC is required, a 130V and a 120V voltage regulator can be connected in series to obtain the required voltage. About the choice of high voltage stabilization preure difference Because the MOS tube is used as a high-voltage voltage adjustment tube, and the MOS tube will have a better sense of hearing under a little temperature, and the general working current of the tube preamp will not be too large (commonly around 10MA ), In addition to considering the voltage fluctuation factors, we recommend that the preure difference should not be le than 50V, and the preure difference between 80V-100V is recommended. It is best if the heat diation on the MOS tube has a little temperature. When the working current is too small, the heat sink can be removed to facilitate heating. Power setting of GG tube preamp The GG tube is powered by plus or minus 200V. When this power board is applied, the positive and negative points of the two sets of high-voltage outputs are short-circuited to the ground, so that it is combined into a positive and negative 200V high-voltage power supply The GG electron tube uses three 12AU7 (12AX7) in the front stage. The filament voltage of this type of tube is 12V6, 150MA. It is recommended that the filament supply current should not be le than 500MA, and the high-voltage power supply should not be le than 15MA. The power board can also be applied to other tube boards, and the high-voltage output can be changed by replacing the Zener diode. Low voltage output can be adjusted directly on the power board.

Detailed parameters

Input voltage: 0-AC220V 0-AC220V 0-AC12.6V (high voltage 200V-265V low voltage 12V-15V) Output voltage: 0-200VDC 0-200VDC 0-12VDC three sets of voltage 0-280VDC 0-280VDC 0-12VDC three sets of voltage You can also replace the regulator tube according to your own voltage. If you need other voltage, please contact customer service for replacement

Product Size

Finished board Size：130mmX70mmX40mm

Circuit diagram

Link diagram

Precautions

Note that the high-voltage output current of this power board is recommended to be within 1A. Low voltage is recommended to be within 1.5A. Low preure is 2A at most. When it exceeds 1.5A, it is neceary to pay attention to strengthen the heat diation of the LT1085 / LM317 tube. ：Does not contain any other equment. Kit：All components require you to complete welding and testing. Finished board：All parts are welded and tested by us.

The list of goods

：GG power supply X1 Kit：GG power supply kit X1 Finished board：GG power supply finished board X1

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Shping and Pa All it will be double cheed and well paed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the paage to the destination(for e areas,it may take a little longer). 

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