RF Transmitter Circuits

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12V White LED Driver
Switching power supply Regulator 0-40V 4A by L296
Amp Monoblock UL
led night light lamp circuit
Telephone in use indicator
The KA7OEI FT-817 RF Power Amplifier
Power Supply For USB Devices
Pulse width / voltage conversion circuit composed of TL082
Discrete components sound and light control stairs delay switch circuit 9
Construction 25W single-ended Class A tube amp circuit diagram EL156