QUICK FIND
CURRENCY
Use keywords to find the product you are looking for...
ADVANCED SEARCH
YOUR CART IS EMPTY
Categories
Manufacturers
Bestsellers
NotificationsNotify me of updates to GM-70 / GM70 / 845 tube (graphite plate)
Site news
24 Dec 2020 - Marry Christmas & NY 2021!
22 May 2020 - Spring New Postal Operator
20 May 2020 - PDF invoice bug fixed
07 Apr 2020 - Delivery time MarMay 2020
29 Mar 2020 - Work schedule 30.0301.04
Articles
Receiving and amplifying tubes (catalog)
U.S. tubes and their Soviet analogues
Russian/Soviet tube designations
Types of some Russian capacitors
Code chart for TESLA tubes (1947-1984)
GM-70 / GM70 / 845 tube (graphite plate)
Manufacturer: Ulyanovsk factory
GM-70 / GM70 / 845 tube (graphite plate)
GM-70 / GM70 / 845 tube (graphite plate)
GM-70 / GM70 / 845 tube (graphite plate)
$35.00
$30.00/ea
Add quantity:
Available quantity:
more 50 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.

  • We also recommend:
    GM-70 / GM70 / 845 (copper plate) tube
    GM-70 / GM70 / 845 (copper plate) tube
    $100.00
    GM-70 / GM70 / 845 FOTON tube
    GM-70 / GM70 / 845 FOTON tube
    $50.00
    GK-71 (graphite plate) tube
    GK-71 (graphite plate) tube
    $35.00
    Customers who bought this product also purchased:
    K40Y-9 200V 0.33uF PIO capacitor
    K40Y-9 200V 0.33uF PIO capacitor
    $1.00
    9 pin ceramic socket with retainer 60mm
    9 pin ceramic socket with retainer 60mm
    $1.50
    5C4M / 5Z4 / CV1863 OLD TYPE tube
    5C4M / 5Z4 / CV1863 OLD TYPE tube
    $5.50
    6F12P / ECF80 triode-pentode tube
    6F12P / ECF80 triode-pentode tube
    $2.50
    6S4P-EV / EC86 / PC86 tube
    6S4P-EV / EC86 / PC86 tube
    $2.50
    6S4P-DR / EC86 / PC86 tube
    6S4P-DR / EC86 / PC86 tube
    $3.50
    GI-7b / GI7b HF-VHF-UHF power coaxial triode tube...
    GI-7b / GI7b HF-VHF-UHF power coaxial triode tube...
    $25.00
    GS-13 / GS13 UHF triode tube
    GS-13 / GS13 UHF triode tube
    $2.00
    6P21S beam tetrode tube (original box)
    6P21S beam tetrode tube (original box)
    $8.00
    Copyright 2007-2021 Tubes-Store Inc. All rights reserved.