Monthly Archive for June, 2014

cambridge electronic workshop console



rebuilding this cambridge electronic workshop console.
it will be 14 channels into 2 stereo mixes with 2 pre/post aux sends. there is talkback facility to aux 1. there is a small speaker p.a amp on board. there is a complete control section. her he is all taken apart with new and old circuit boards arranged onto mothers – almost all ready to be reassembled and wired . next weeks task.
i rescued this desk in melbourne about 1996 from the infamous RAY EMERY – he was a sound guy of years and years who had a house in the sticks piled high with old tech of all sorts. he was an awesome guy who was very generous with parts and infos and rum. the other desk i could afford at the time was a mackie style . i hated those measley thin heaps with zero headroom and bad eq. i.e no fun.

so i bort the cambridge and a heap of other bits off ray and slowly remade it work and have used it ever since in my studios.

the cambridge is all transistor from around 1975. just before chip amps became normal to use in consoles . i.e the burying the good clean audio signal with multiple multiple stages of chips each with a gazzillion transistors each. those cheap mass produced consoles are major electronic bullshit.
ive never found anyone who has ever heard of the cambridge audio workshop. so this must have been a prototype – originally designed to be a special functional theatre console.
the cambridge transistor operational amps are very neve ish .. 1070 thru 1080 like. the similarity is bonkers. they utilise different sex power supplies and opposite polarity bi polar transistors .. and yet they can live on the same circuit board. it’s a mystery wraped in enigma