We can provide power transformer which use for 117V, 220V, 230V, 240V.
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OTOMON LAB 71A/101D drive 45 PSE tube amplifier Zero NFB
This is 45PSE tube amp (can be used with 2A3), special order made with driver tube 71A and Wenger wooden case. It is one of the best 45 PSE tube amp I have made.
Amplifier is working in para Single end mode. 2 tube 45 parallel connection in single end mode in each channel. Output is up to 6W pure class A, no noise , no hum, sound is beautiful, rich and full of energy. You can use it with 2A3 tube too, but it is built for 45 and best performance with 45 tube. This use auto bias, you dont need to care to bias of tubes as changing tubes. You will be surprise with musical sound.
Specification:
Ouput power: 6W
Response frequency : 16Hz ~ 60K Hz
Noise : 0.2mV
THD 1W 0.3%
Amplifier is working in para Single end mode. 2 tube 45 parallel connection in single end mode in each channel. Output is up to 6W pure class A, no noise , no hum, sound is beautiful, rich and full of energy. You can use it with 2A3 tube too, but it is built for 45 and best performance with 45 tube. This use auto bias, you dont need to care to bias of tubes as changing tubes. You will be surprise with musical sound.
Specification:
Ouput power: 6W
Response frequency : 16Hz ~ 60K Hz
Noise : 0.2mV
THD 1W 0.3%
All parts are new ones. No tubes are included. This amplifier is working in class A, single end mode generate 7.5W of power for one channel. Zero NFB !!!
This is 300B PSE tube amp, 2 x 300B tube in one channel and para connection. Single end with output 18W per channel.
Prestage tube is 417A, 300B tube is used for driving 2x 300B tube in power stage.
With Zero NFB, the response frequency is flatted from 30Hz to 40Khz, this is impossible to all amplifier that I made before. At -1db it is from 16Hz to 40K Hz.
The output power is 18W.
The sound as testing in our system is great with low bass well balanced with musical sound. The biggest characteristic of O.U.D.D.C is that it bring a quite difference bass sound. Deep, open sound stage and detail.
Specification (Zero NFB)
Response frequency : 16Hz ~ 60KHz (-1db) Flatted from 30Hz to 50Khz
Hum level: 0.3mV
THD : 5% 18W
All tubes are not included.
This is 300B PSE tube amp, 2 x 300B tube in one channel and para connection. Single end with output 18W per channel.
Prestage tube is 417A, 300B tube is used for driving 2x 300B tube in power stage.
With Zero NFB, the response frequency is flatted from 30Hz to 40Khz, this is impossible to all amplifier that I made before. At -1db it is from 16Hz to 40K Hz.
The output power is 18W.
The sound as testing in our system is great with low bass well balanced with musical sound. The biggest characteristic of O.U.D.D.C is that it bring a quite difference bass sound. Deep, open sound stage and detail.
Specification (Zero NFB)
Response frequency : 16Hz ~ 60KHz (-1db) Flatted from 30Hz to 50Khz
Hum level: 0.3mV
THD : 5% 18W
All tubes are not included.
$5,500.00
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