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 FOTON tube
Site news
24 Dec 2019 - Marry Christmas & NY 2020!
11 Nov 2019 - Card payments bug fixed
01 Jul 2019 - Work schedule JUL 2019
13 Apr 2019 - Work schedule APR 2019
24 Dec 2018 - Marry Christmas & NY 2019!
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)
Shipping Info Delivery Stats Payment Info How to Order Privacy Notice Returns Policy Contact Us
» Vacuum tubes by use » POWER / OUTPUT tubes » GM-70 / GM70 / 845 FOTON tube
GM-70 / GM70 / 845 FOTON tube
Manufacturer: Foton factory
GM-70 / GM70 / 845 FOTON tube
GM-70 / GM70 / 845 FOTON tube
GM-70 / GM70 / 845 FOTON tube
$50.00/ea
Add quantity:
Available quantity:
more 25 pc.
We accept payments by:
Average delivery time to United States is 16 days.

The GM-70 triode is used as a low-frequency power amplifier in RF equipment. Military equipment. Near 845 Equivalent. Made by FOTON plant (Tashkent, USSR). Tubes were made in 196x.

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 and grid potential = 180V);
  • long-dissipated anode power 125W;
  • differential transconductance 6mA/V (plate voltage = 600V and plate currents = 160mA, 260mA);
  • gain 6.7 (plate voltages = 1200V, 1000V and 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 tube (graphite plate)
    GM-70 / GM70 / 845 tube (graphite plate)
    $35.00 $30.00
    GM-70 / GM70 / 845 (copper plate) tube
    GM-70 / GM70 / 845 (copper plate) tube
    $100.00
    GK-71 (graphite plate) tube
    GK-71 (graphite plate) tube
    $35.00
    Customers who bought this product also purchased:
    EL86 / 6CW5 RFT tube
    EL86 / 6CW5 RFT tube
    $10.00
    6N2P / 12AX7 / ECC83 tube
    6N2P / 12AX7 / ECC83 tube
    $2.00
    6J32P / 6Zh32P / EF86 / 6267 tube
    6J32P / 6Zh32P / EF86 / 6267 tube
    $7.00
    EZ81 / 6CA4 RFT rectifier tube (original box)
    EZ81 / 6CA4 RFT rectifier tube (original box)
    $15.00
    6N6P-IR / ECC99 / E182CC high-durable tube (origi...
    6N6P-IR / ECC99 / E182CC high-durable tube (origi...
    $25.00
    Copyright 2007-2020 Tubes-Store Inc. All rights reserved.