UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Michael Maurice · 28th Jan 2010, 11:53 pm

There is one huge disadvantage and that is Safety.

A lot of people like to show off their valve equipment by leaving their bottles freestanding above the chassis.

This is OK with EL84, EL34, KT66, KT88 and similar valves because the anode is brought out at the valve base so you cant (in theory) get a shock.

But the PL509 had their anode coming out of the top cap, and you can't leave that exposed.

28th Jan 2010, 11:53 pm	#5
Michael Maurice Moderator Join Date: Feb 2006 Location: Wembley, Middlesex Posts: 7,222	Re: EL or PL509 as an audio output valve. There is one huge disadvantage and that is Safety. A lot of people like to show off their valve equipment by leaving their bottles freestanding above the chassis. This is OK with EL84, EL34, KT66, KT88 and similar valves because the anode is brought out at the valve base so you cant (in theory) get a shock. But the PL509 had their anode coming out of the top cap, and you can't leave that exposed.