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power amplifier circuit



Output Relay Delay Audio Amplifier Circuit

2 September, 2010 (18:26) | Power Amplifier | By:

Output Relay Delay Audio Amplifier Circuit
This is a simple circuit which I built to one of my audio amplifier projects to control the speaker output relay. The purpose of this circuit is to control the relay which turns on the speaker output relay in the audio amplifier. The idea of the circuit is wait around [...]

Hammond Transformers 6V6 Push-Pull Tube Amplifier

31 August, 2010 (19:44) | Power Amplifier | By:

This 6V6 amp was built following the push-pull (PP) EL84 / 6V6 Dynaco A-410 output transformer schematic. There are a few minor deviations from the original schematics. Instead of Dynaco transformers, Hammond 1608A audio output transformers and a Hammond 272HX power transformer were used. The EL84 / 6V6 PP Dynaco A-410 [...]

Several RC5 Infrared Transmitter Circuit

20 August, 2010 (11:47) | Other Circuits | By:

RC5 is not suitable as a barrier to race out to whoever is the winner. Two or more RC5 channel interfere with each other and the protocol itself also takes time for the transfer. If more than one car with RC5 transmitter arrive close together, it can well be the first and the second triggers [...]