Reference Documents

Old and a bit newer

A C Cossor Limited ... lots of history

B&K AVR507 series

The American 7027A

The humble EL84

Taylor Tubes 1945_01.pdf

Telefunken-EL156 Power Pentode .pdf

Sylvania 6DJ8 .pdf

Guitar Speakers and Design Requirements ...

Perhaps the greatest single payoff from hybrid hard drives

The secret_life_of_valves

Ampeg History ...

Ampeg Back Line




Components for sale

Items for sale