-3%
tube GM-57 (UB-180) Very rare triode. Near equivalent 300B
tube GM-57 (UB-180) Very rare triode. Near equivalent 300B
tube GM-57 (UB-180) Very rare triode. Near equivalent 300B
tube GM-57 (UB-180) Very rare triode. Near equivalent 300B
tube GM-57 (UB-180) Very rare triode. Near equivalent 300B
tube GM-57 (UB-180) Very rare triode. Near equivalent 300B
GM-100 tube modulator triode Russian
GM-100 190,00 $
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Tube 6S18S (6C18C) triode Russian SVETLATA factory. Analog 6S33S (6C33C)
6S18S Original price was: 39,00 $.Current price is: 36,00 $.
NEVZ

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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Description

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 ± 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 ± 0,4V
  • Anode voltage limit: 750V

Operating time not less than 2000 hours.

Additional information

Additional information

Weight 0,26 kg
Dimensions 19,5 × 5,7 × 5,7 cm
Brand

NEVZ
Packaging

Product from factory group packaging
Socket type

4 – Pin PLK 811 300B 2A3
Condition

New product
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About brand
"NEVZ" Novosibirsk city MADE IN RUSSIA
SKU: 18022022 Categories: , ,

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