Use keywords to find the product you are looking for...
ADVANCED SEARCH
CURRENCY
Categories
Manufacturers
Bestsellers
Site news
Articles
»
Vacuum tubes by use
»
Power, Output tubes
»
GM-70 / GM70 / 845 tube (graphite plate)
GM-70 / GM70 / 845 tube (graphite plate)
Manufacturer:
GM-70 / GM70 / 845 tube (graphite plate)
GM-70 / GM70 / 845 tube (graphite plate)
GM-70 / GM70 / 845 tube (graphite plate)
$
40.00
Add quantity:
Available quantity:
more 25 pc.
We accept payments by:
Average delivery time to
United States
is
19
days.

The GM-70 triode is used as a low-frequency power amplifier in RF equipment. Military equipment. Near 845 Equivalent. NEW, NOS and never used before!

Key specifications:

Interelectrode capacity:

  • grid-anode 12pF;
  • grid-cathode 8pF;
  • anode-cathode 4pF.

    Rated electrical data:

  • glow voltage 20V;
  • filament current 3A;
  • plate voltage 1.5kV;
  • height 185mm;
  • diameter 68mm;
  • cathode emission current 800mA (plate voltage; grid potential = 180V);
  • long-dissipated anode power 125W;
  • differential transconductance 6mA/V (plate voltage = 600V; plate currents = 160mA, 260mA);
  • gain 6.7 (plate voltages = 1200V, 1000V; plate current = 125mA);
  • dielectric resistance 20 megaohm;
  • reverse grid current 40 microamp;
  • max glow voltage 20V;
  • min glow voltage 19V;
  • max plate voltage 1.5kV;
  • max long-dissipated anode power 125W;
  • max minute-dissipated anode power 150W.
    • Copyright 2007-2022
    Tubes-Store Inc. All rights reserved.