Quote:
Originally Posted by FERNSEH
In the late 1950s Philips made a PA amplifier that employed EL81s. I've got one upstairs. I can't remember if two or four EL81s were employed. The P/EL81 was originally designed as a line output valve.
DFWB.
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I have a Philips FZ977A Bi-Amp radiogram chassis that has 4 PL81s in the output stages. It was from one of their top-of-the-line radio/tape/record player consoles and was out for rubbish collection. Sadly the cabinet had been vandalised beyond recovery before I scored the chassis and speakers. but amazingly the chassis, dial scale and valves were all still intact.
The PL81/EL81 is rated for use as an audio o/p valve, TV line-output valve, and a series voltage regulator.
Cheers
Billy