Audio Documents
Circuit Diagrams and Manuals related to
AudioMisc
website.
Armstrong.
600 Range
500 Range (also for 400 range)
200 Range
T4 FM Tuner
A10 Mk1 Power amp and PCU
Amstrong A20 Power amp and PCU25
RF103/3 radio
Stereo 55 tuner/amp
J. E. Sugden.
Original A21 Hand drawn circuit and notes by J.E.S.
Manual for A21Mk2
Circuit diagram and components for early A51
