Re: PCB production using toner transfer
The process is to draw the schematic and assign the component footprints. Then you can't make an error in board layout - certainly at audio frequencies.
RF is another matter, needs a higher level of skill to get it right, and usually involves iteration.
At Quad, all the classic era transistorised stuff in the late 60's and 70s that used circuit boards (like the 33/303 and FM3) were taped up at 4x and stuck on the end of a dexion storage rack that faced a toilet door. In the door was a camera lens. Mike Albinson (RIP) used to go into the loo and tape a piece of resist coated board on the wall facing the lens. The whole arrangement reduced by a factor of four. After a guesstimated time, Mike would develop and etch the board.
Once he had iterated the layout a few times, he sent the final x4 taped-up artwork to the board house.
Craig
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