GM-57 (pair)

Original price was: 3000,00 $.Current price is: 2900,00 $.

Pair very rare tube GM-57 (UB-180) triode. After listening to this tube, the desire to listen to anything else disappears. Near equivalent 300B

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1 in stock

Description

Very rare tube GM-57 triode with a direct-heated oxide cathode designed for power amplification in low-frequency stages. In the USSR, there was a powerful tube that analog 300B. It was called first MS-3, then M-457, then GM-57, and finally acquired a marking UB-180.

Technical specifications:

  • Heating voltage: 4V
  • Filament current: 2 Β± 0.2mA
  • Anode voltage: 750V
  • Slope: 5.0 ma/V
  • Rated Gain: 9
  • Maximum power dissipated by the anode: 50W
  • Limit fluctuations in filament voltage: 4 Β± 0,4V
  • Anode voltage limit: 750V

Operating time not less than 2000 hours.

Additional information
Weight0,26 kg
Dimensions19,5 × 5,7 × 5,7 cm
BrandNEVZ
PackagingProduct from factory group packaging
Socket type4 – Pin PLK 811 300B 2A3
ConditionNew product
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About brand
"NEVZ" Novosibirsk city MADE IN RUSSIA
SKU: 18022022 Categories: , , Brand: