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power supply board blank board PCB

Tube rectification power supply board blank board PCB

Regular price $39.92 Sale price $87.96 Unit price per
Tax included. Shipping calculated at checkout.
product description

The parts on the picture are only for display, The actual shipment is an empty board. You need to purchase additional parts yourself to install. All you buy is an empty printed circuit board, you must pay attention!

  Tube rectification, regulated power supply board
The power supply has a great influence on the front stage of the electronic tube. Experienced enthusiasts should have a deep understanding. The power supply is the soul of the pre-stage of the electronic tube, which plays a decisive role in the overall sound direction of the front stage. The LS70 power supply board adopts 5AR4 or 5U4G, 274, etc. The high-current rectifier tube is rectified, which is a qualitative leap than the power board with small tube rectification. A 12AX7 tube is used as the voltage comparison tube, the OB2 tube provides the reference voltage, and two 6V6 tubes are used as the large current adjustment output.

One of the best power strips, this board is the best choice for installing or upgrading the front of the tube.
Parameters: A set of high voltage output, high voltage 200-400V adjustable, high voltage current 100mA. There are two sets of adjustable filament voltages. 5V, 6.3V, 12.6V, etc. can be adjusted at will, and the current is 1A per group.

Size: 230mm × 125mm

Input voltage: 0-6.3V × 2 (1A), 0-5V × 1 (2A), high voltage and filament input voltage can be selected according to the required output voltage. High voltage maximum allowable input voltage is 400V × 2




As different computer display the colors differently,and the color maybe is little difference from the actual items,but we can guarantee the style is same,but maybe some not same performance on different bodies as on the models.Hope you can understand it.thank you



Shipping Timeframe:

US, Australia, New Zealand: 2~3 weeks  France: 2~4 Weeks

UK, Germany, Canada: 3~5 weeks  Other European Countries: 3~5 Weeks

Asian Countries: 3~5 Weeks       Others: 3~8 Weeks·

 Items will be shipped in within 4 days after payment is received. 

Items are shipped from China using Post Air Mail Registered (HongKong Post, Sweden Post or Singapore Post).

The Parcel Status Can Be Tracked Via Post Official Website or 8-10 Days Later After Sending.The Real Delivery Date Is Subject to the Custom & Local Logistic Status.

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 If you are not satisfied with the item you received, Please contact us for parcel return & payment refund.The returned parcel shouldbe sentback in original package (or well protected)in14days after the receipt.

If item is founddefective in 1 months, We will send you a replacement free of chargeor arrange the refund after the receipt of the defective item. But you have to pay for the returned freight.

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