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The data sheet information supplied by the tube manufacturers' design-centers list the typical operation of an audio output stage for a single 6V6 as producing about ...
Pulsed transmitting tubes: Maximum peak anode current in A (number preceded by "P") Rectifiers: Maximum average anode current in mA; Thyratrons: Maximum average anode ...
VF14 – Sharp-cutoff pentode, 55 V heater, Y8A 8-pin steel tube base, identical to EF14 and UF14 except for heater ratings [2] VF14M – Selected VF14 in production until the end of the 1950s for use as a preamplifier in Neumann condenser microphones U-47 and U-48 where they were run at only half their rated heater power to reduce noise [ 58 ]
12AX7 (also known as ECC83 [1]) is a miniature dual-triode vacuum tube with high voltage gain.Developed around 1946 by RCA engineers [2] in Camden, New Jersey, under developmental number A-4522, it was released for public sale under the 12AX7 identifier on September 15, 1947.
The Deluxe Reverb is a 22-watt tube amplifier (at 8 ohms), powered by a pair ("duet") of 7408/6V6GT power tubes, one GZ34/5AR4 rectifier tube, four 7025/12AX7 tubes for preamplification and tremolo oscillation, and two 6201/12AT7 tubes driving the reverb and phase inverter circuits.
In 1943, there is a data sheet with copyright on the 703A ultra-high frequency triode vacuum tube used for the Joint-Army-Navy contract NXSR-81414. [22] The Governing Board of the American Institute of Physics approved Tung-Sol Lamp Works as a firm approved by the Board on February 26, 1944. [ 23 ]
The 6AQ5 [1] (Mullard–Philips tube designation EL90) is a miniature 7-pin (B7G) audio power output pentode vacuum tube with ratings virtually identical to the 6V6 at 250 V. [2] It was commonly used as an output audio amplifier in tube TVs and radios. It was also used in transmitter circuits. [3]
Machlett was well known for its rather complete line of transmitting tubes, most particularly triodes. For quite a while, Machlett's 6697s [2] were the most-used Class B modulator tubes (as a push-pull pair) and Class C final tubes (as a single-ended pair) in 50,000-watt plate-modulated AM transmitters.