We can provide power transformer which use for 117V, 220V, 230V, 240V.
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Facebook Channel: Otomon Vintage FB
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[Prototype] OTOMON LAB 71A drive 45/2A3/300B compatible PP tube amplifier 20W power monoblock X 2 Zero NFB (O.U.D.D.C)
OTOMON LAB 71A drive 45/2A3/300B compatible PP tube amplifier 20W power monoblock X 2 Zero NFB (O.U.D.D.C)
This is absolutely the best amplifier that I have ever made, using O.U.D.D.C schematic.
Heater is AC heater.
This is prototype product with all vintage HIrata TANGO transformer, driver transformer is Hashimoto. Original order made price as this one is sold out is 3950USD. Tubes and shipping fee are not included.
It can be used with 45/2A3 and 300B, max output as tube is 300B, at 20W. You can enjoy the different sound of 3 type of tubes in one amp.
This is order made product that adopt new circuit O.U.D.D.C, and the result is as usual, really amazing.
This is absolutely the best amplifier that I have ever made, using O.U.D.D.C schematic.
Heater is AC heater.
This is prototype product with all vintage HIrata TANGO transformer, driver transformer is Hashimoto. Original order made price as this one is sold out is 3950USD. Tubes and shipping fee are not included.
It can be used with 45/2A3 and 300B, max output as tube is 300B, at 20W. You can enjoy the different sound of 3 type of tubes in one amp.
This is order made product that adopt new circuit O.U.D.D.C, and the result is as usual, really amazing.
No tubes are included. This amplifier is working in class A, double pushpull mode generate 20W of power for one channel. Zero NFB !!!
With Zero NFB, the response frequency is flatted from 20Hz to 40Khz, this is impossible to all amplifier that I made before. At -1db it is from 10Hz to 80K Hz.
The output power is 20W. Almost 300B PP tube amp generate 15-18W per channel.
The sound as testing in our system is really good. 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 : 10Hz ~ 80KHz (-1db) Flatted from 20Hz to 40Khz
Hum level: 0.2mV
THD : 5% 30W
This item was SOLD OUT, you can ask me for ordering the same one or contact to me to get notification of the same one.
With Zero NFB, the response frequency is flatted from 20Hz to 40Khz, this is impossible to all amplifier that I made before. At -1db it is from 10Hz to 80K Hz.
The output power is 20W. Almost 300B PP tube amp generate 15-18W per channel.
The sound as testing in our system is really good. 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 : 10Hz ~ 80KHz (-1db) Flatted from 20Hz to 40Khz
Hum level: 0.2mV
THD : 5% 30W
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