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Posts by admin

6V6 6J5 Class A Vacuum Tube (Valve) Amplifier Circuit

Monday, August 29th, 2011

Class AB Transistor Power Amplifier Circuit Diagram

Thursday, July 14th, 2011

CD4060 Timer Circuit 1 minute to 2 hours

Monday, April 18th, 2011

HF Dipole Antenna Design Software

Monday, March 7th, 2011