UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Building a 5 valve A.C. amplifier from scratch

G6Tanuki · 27th Nov 2019, 7:15 pm

Given the continued availability of valves like the ECC83 and the 6BW6 if I was building a 'simple stereo amp' Id use a single dual-triode and a couple of 6BW6 (or 6V6) - and use semiconductor rectification because of its lower forward-resistance (meaning less voltage-sag under load).

A 6BW6 or 6V6 with 315V on the anode will give you 5.5 Watts of audio output, and still sounds good.

27th Nov 2019, 7:15 pm	#13
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 14,005	Re: Building a 5 valve A.C. amplifier from scratch Given the continued availability of valves like the ECC83 and the 6BW6 if I was building a 'simple stereo amp' Id use a single dual-triode and a couple of 6BW6 (or 6V6) - and use semiconductor rectification because of its lower forward-resistance (meaning less voltage-sag under load). A 6BW6 or 6V6 with 315V on the anode will give you 5.5 Watts of audio output, and still sounds good.