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71A tube stereo preamp, booster, amplifier 77/78 tube drive * PHILIPS transformer 110/120/230V
This product is not for sale, if you want the same item, please contact me for special order making- Manufacturer:
- OTOMON Lab
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All tubes are NOS one. tube 77 (78) is same as 310A tube but has 6.3V heater. Can change to 310A tube just some small modification.
Output transformer and power transformer are vintage Philips ones, heater transformer is Raytheon. Output is 0.7W, it can be used with high sensitive speaker. Sound is very beautiful and musical. Amplifier is quite silent, no noise , no hum can be found.
Power transformer can be used with 110V, 120V, 165V,189.220V and 240V
Due to lack of transformer, this is only one, no more can be made.