1 Pair Finished Board A60+ Refer Golden Throat 400W 4R Mirror Design Current Feedback Amplifier Board ON 4281/4302
Version 1: Finished Board + Toshiba 1943/5200+ Elna /63V10000UF(2240 version)
Version 2: Finished Board+ON4281/4302+ELNA/63V10000UF(2240 version)
Adjust the static current of the large tube to 50-100mA per tube, the board has one TEST point, and the voltage drop of the TEST 2 end is 20-30mV
Note: Remember to add mica sheet when installing the pipe, and the mica sheet must be coated with thermal silica gel.
Product details
Philips resistor is standard for circuit resistance
Japan omron +UPC1237 protection circuit, to ensure safe and reliable output, protect the speaker
Input pipe is Japanese Toshiba HIFI quality control 2SC2240 2SA970 precision matching
Push for ON Tube King NJE15034/35.
High power pipe can be matched with 6 pairs of dongzi 2SC5200.1943 or 4 pairs of three pipe, of course, can also be matched with ON pipe
Product parameters
Input voltage: AC 24V*2-42V*2 and AC 12V. (used for protection circuit)
Output power: 200W 8 Ohm 400W 4 Ohm
Distortion: 0.002% SNR: >100dB
Frequency response: 5 hz - 40 KHZ
PCB size: 273X88MM
Large capacitor installation diameter: 25-30mm
Packing list
2PCS A60+ Amplifier Board
Shipping & After Sales Service
1.Normal products can be sent out in 3-7 days after paid;
2.Shipping ways
a. Expedited Shipping: DHL, UPS, or FedEx. For faster shipping or smoothly transaction, we will change the best shipping company among them.
Estimated Delivery Time: 3-7 Days
b. Standard Shipping: EMS, ePacket(U.S available only) or DHL Global Mail (Gemany available only)
Estimated Delivery Time: 5-15 Days.
c. Economy Shipping: China Post or HongKong Post Air Mail
Estimated Delivery Time:15-34 Days
NOTE:All shippments to Brazil and Russia may take about 35-70 days
3.We will prodvide tracking number in 3 days after shipment;
4.When you have any questions about our products please contact us through Aliexpress, we will reply in 24 hours.
Pictures
C2240 version: input circuit using C2240.A970 low noise HIFI tube, low sound dye, transparent