2×45 Watt Tube Amplifier

The circuit is simple, yet is capable of excellent performance. I designed it specifically for use as an amplifier for the digital sound card in my computer. Audio input can be from any two-channel line level device such as a television, CD player, or VCR. It is of the tube type, using only 5 tubes total with no more than about 45 Watts power consumption from the outlet. It uses 3 types of tube 1 5Y3 GT vacuum rectifier, 2 6SF5 GT high-mu triodes, and 2 6K6 power beam amplifiers.

Part

R1, R10, R13 6 2.2Meg Pot
R2 2 470K 1/2W Resistor
R3 2 1 Meg 1/2W Resistor
R4 2 220K 1/2W Resistor
R5 2 330 Ohm 2W Resistor
R6 2 220K 1/2W Resistor
R7 2 2.2Meg 1/2W Resistor
R8 2 1Meg 1/2W Resistor
R9 1 720 Ohm 20W Resistor
R11 2 33K 1/2W Resistor
R12 2 22K 1/2W Resistor
C1, C9 4 0.005uF 400V Capacitor
C2 2 0.05uF 600V Capacitor
C3 2 20uF 25V Electrolytic Capacitor
C4 2 0.01uF 400V Capacitor
C5 2 200uuF 400V Ceramic Disc Capacitor
C6, C7 2 15uF 450V Capacitor
C8 2 15uF 400V Capacitor
T1 1 117V Primary, 350VCT Secondary, 6.3V Secondary, 6.3V Secondary
T2 2 7600 Ohm Primary, 4 or 8 Ohm Secondary
SW1 1 SPST Switch
SP1, SP2 2 12″ or smaller, 4 or 8 ohm speakers
MISC 1 5 tube sockets, 2 RCA jacks, PC board or chassis, wire, knobs, etc.

Read More Source:
http://www.aaroncake.net/circuits/tubeamp.asp
Thank you.

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