6GM5

6GM5 has no equivalent designation confirmed by the archive.

The 6GM5 is a beam power pentode in a T9 envelope with a 9-pin button base (E9-68). Its basing is 9MQ and its outline is 9-71.

Construction

The tube has a maximum diameter of 1.188 inches, a maximum seated height of 2.920 inches, and a maximum overall height of 3.230 inches.

Ratings

The heater requires 6.3 volts at 800 milliamperes. Maximum heater-cathode voltage is 200 volts total DC and peak when the heater is negative with respect to the cathode, 100 volts DC when the heater is positive with respect to the cathode, and 200 volts total DC and peak when the heater is positive with respect to the cathode.

Capacitances are 0.13 pF from grid No. 1 to plate (unshielded), 9.0 pF input, and 4.0 pF output.

Maximum plate voltage is 550 volts; maximum grid No. 2 voltage is 440 volts. Maximum plate dissipation is 19 watts, and maximum grid No. 2 dissipation is 3.3 watts, though grid No. 2 dissipation may be permitted to reach 6 watts during periods of maximum input of speech and music signals. Maximum cathode current is 85 milliamperes. Maximum grid No. 1 circuit resistance is 0.3 megohm with fixed bias and 1.0 megohm with self bias.

Original manufacturer datasheets for 6GM5, hosted by Frank Philipse's Electron Tube Data sheets.

Documents held here and used to write this page.

• 6GM5