[Valvepower]

Hello,

I use the F&T 50+50uF dual can for reservoir and filter, which are the same capacitors as sold by the BVWS.

Quite some time ago I fitted a regulated supply to a pair of Sterns 5-10’s, this used a 6080, EF91, 85A2 with silicon rectification. There are enough spare 6.3V windings on what is beefy mains transformer for the filaments of the 6080 and EF91. Silicon rectification gave enough raw pre regulation voltage to enable me to set the regulated voltage at 300V or thereabouts.

From memory it improved the noise level and THD, but by how much I can’t fully remember, but for all the effort it didn’t give a vast improvement in the amplifier in practice.

Also, from memory I fitted a 0.1uF between directly to the chassis and the negative speaker terminal to try and help with RFI pick up via the earth of the speaker leads.

Anyway, these are nice amplifiers and give a good performance given their shortcomings.

Regards
Terry