The 7C5 is an audio output beam tetrode. The figures given are for single ended use with an anode load of 5,000 Ohms.

For push pull use with anode voltages of 285 Volts and anode current of 35 mA the power out is 14 Watts in class AB1 with an anode to anode load of 8,000 Ohms.

The wide glass tube envelope is 28 mm in diameter and, excluding the B8B base pins, is 65 mm tall.

 
Pin Connections

B8B	1	2	3	4	5	6	7	8
	h	a	g2	ic	ic	g1	k	h

 
Absolute Maximum Operating Conditions

Beam Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm	Pout	D
	6.3	0.45	250	250	-12.5	45.0	4.5	52,000	4.1	4.5	8%

Thanks to Frank Philipse for supplying the above datasheet

This exhibit was last updated on 05 July 2007 {find valves by name}