Thursday, January 22, 2015

Old time switching


It is amazing the primitive nature of pre digital designs. 

Key action. 
Pedal key action
Stop action (on the keyboards) and couplers. 

It is all about interconnecting thousands of wires. All done in semiconductor logic now. 

I have always held in admiration the scientists and engineers who were able to create television broadcast and receive systems with a handful of tubes and discrete components.





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