R-392 Stages and Tubes

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The R-392 receiver contains 25 tubes of six types. The following table shows the function and type of each tube, the total number of each type, and number of each type in the running spares kit.

ID	Function	26A6	26A7/GT	26C6	26D6	12AU7	6AJ5
V201	1st RF Amp	26A6
V202	2nd RF Amp	26A6
V203	1st Mixer			26C6
V204	2nd Mixer			26C6
V401	1st Xtal Osc						6AJ5
V402	2nd Xtal Osc						6AJ5
V501	1st IF Amp	26A6
V502	2nd IF Amp	26A6
V503	3rd IF Amp	26A6
V504	4th IF Amp	26A6
V505	5th IF Amp	26A6
V506	6th IF Amp	26A6
V601A V601B	IF Cath. Foll. 1st RF AGC Rect.					12AU7
V602A V602B	RF & IF AGC Rect. Squelch Rect.					12AU7
V603A V603B	Detector Noise Limiter					12AU7
V604	BFO	26A6
V605	Squelch Control						6AJ5
V606	1st AF Amp						6AJ5
V607	Phase Inverter						6AJ5
V608A V608B	2nd AF Amp		26A7/GT				6AJ5
V609	AGC IF Amp	26A6
V701	Multivibrator					12AU7
V702	200 KC Xtal Osc	26A6
V703A V703B	Harmonic Amp Distorter					12AU7
V801	VFO-Mixer				26D6
Total		11	1	2	1	5	5
Spares		4	2	2	1	2	10
		26A6	26A7/GT	26C6	26D6	12AU7	6AJ5