We can provide power transformer which use for 117V, 220V, 230V, 240V.
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Facebook Channel: Otomon Vintage FB
YouTube channel > Otomon YouTube Channel
Facebook Channel: Otomon Vintage FB
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Prototype SALE OTOMON LAB double PP 71A drive 45/2A3/300B compatible PP tube amplifier 13W power monoblock X 2 Zero NFB (O.U.D.D.C)
OTOMON LAB double PP 71A drive 45/2A3/300B compatible PP tube amplifier 15W power monoblock X 2 Zero NFB (O.U.D.D.C)
This is prototype sale item. If you saw this one was sold out, price for the same order one is 2000USD
This used vintage SANSUI output transformer and interstage transformer, output power is around 13.5W. This is double PP tube amp, Driver stage is pushpull with 2x71A drive output stage PP.
Impossible to find vintage SANSUI transformer so it is impossible to make the same one.
This amplfiier used O.U.D.D.C schematic.
ALL Heater is AC heater.
It can be used with 45/2A3 and VT-52, max output as tube is VT-52, at 13W. 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 prototype sale item. If you saw this one was sold out, price for the same order one is 2000USD
This used vintage SANSUI output transformer and interstage transformer, output power is around 13.5W. This is double PP tube amp, Driver stage is pushpull with 2x71A drive output stage PP.
Impossible to find vintage SANSUI transformer so it is impossible to make the same one.
This amplfiier used O.U.D.D.C schematic.
ALL Heater is AC heater.
It can be used with 45/2A3 and VT-52, max output as tube is VT-52, at 13W. 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 13W of power for one channel. Zero NFB !!!
With Zero NFB, the response frequency is flatted from 20Hz to 30Khz, this is impossible with vintage output transformer. At -1db it is from 15Hz to 45K Hz.
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 : 15Hz ~ 45KHz (-1db) Flatted from 20Hz to 30Khz
Hum level: 0.3mV
THD : 5% 13W(VT-52)
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 30Khz, this is impossible with vintage output transformer. At -1db it is from 15Hz to 45K Hz.
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 : 15Hz ~ 45KHz (-1db) Flatted from 20Hz to 30Khz
Hum level: 0.3mV
THD : 5% 13W(VT-52)
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