QQE03-20 @ The Valve Museum

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QQE03-20

Sensibly equivalent^¶ to:

11E15 AX9910 RS1019 SRS4452 TT20

See also:

Inside the QQE03-20

Extras ▼

Philips HMS Collingwood Other QQE03-20 exhibits

The QQE03-20 is a double beam transmitting tetrode. The design is of the European pattern and the valve is equivalent to the QQV03-20. The literature does not give any actual differences and so it appears to be the way the Dutch Philips company rated the heater as 6.3 Volt with the two valves in parallel. The UK versions by Mullard, owned by Philips, rates the heater as 12.6 volts centre tapped.

Another exhibit of this valve. Only the lettering looks different.

The wide glass tube envelope is 41 mm in diameter and, excluding the B7A base pins, is 53 mm tall.

Reference: Data-sheet. Type QQE03-20 was first introduced in 1957. See also 1957 adverts.

Pin Connections

B7A	1	2	3	4	5	6	7	tc	tc
	h	g1(2)	g2	k,bp	hct	g1	h	a	a(2)

Absolute Maximum Operating Conditions^¶

Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs	mAg	Pdriv	Pout	Pdiss	freq	f.max
	6.3	1.3	600	250	-60	100	8	1.4	1.5W	48	20W	200	600

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated February 20, 2013.

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