16 Watt Power Amplifier Circuit parts: U1 U2 LM383 8 watt audio amplifier ic R1, R3 220 ohm resistor R2, R4 2.2 ohm resistor R5 1 megohm resistor R6 100k audio taper potentiometer C1, C7 10uf electrolytic capacitor C2, C5 470uf electrolytic capacitor C3, C4, C6 0.2uf ceramic capacitor SPKR1 4 to 8 ohm speaker [...]
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Low-cost RS-232C multiplexer serves as multiport adapter Multiport RS-232C PC add-on boards are advised for accelerated multichannel communication. Therefore, anniversary consecutive anchorage has its own manual controller. If your appliance doesn’t charge interrupt-driven service, and polling the accessories through RS-232C channels one afterwards addition is sufficient, again you can use a distinct ambassador with switched [...]
13.8V 20A Transformerless Power Supply Circuit This PSU has been abnormally advised for current-hungry ham radio transceivers. It delivers cautiously about 20Amps at 13.8V. For lower currents, a abstracted accepted attached output, able of 15ma up to a absolute of 20A has been added. Let us see what we accept got here. The ability agent [...]
This battery charger is for 12V Seales Lead Acid (SLA) battery. It is actually a half-wave rectifier. It only charges the battery on every half cycle. The plug pack doesn’t like this as it leaves residual flux in the core of the transformer and causes it to overheat. There are a number of points we [...]
LM317T Voltage Regulator with Pass Transistor The LM317T output current can be increased by using an additional power transistor to share a portion of the total current. The amount of current sharing is established with a resistor placed in series with the 317 input and a resistor placed in series with the emitter of the [...]
