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1.2W Dual Audio Power Amplifier circuit

1.2W Dual Audio Power Amplifier circuit using KA2214 1.2W Dual Audio Power Amplifier circuit using KA2214

Dual Audio Pre-Power Amplifier and DC Motor circuit

Dual Audio Pre-Power Amplifier and DC Motor circuit using KA22135 Dual Audio Pre-Power Amplifier and DC Motor circuit using KA22135 Dual Audio Pre-Power Amplifier and DC Motor circuit using KA22135

Amplifiers Audio using MOSFET

Amplifiers Audio using MOSFET IRF350, TIP142 Circuit Audio amplifier has 15W of output power.

battery charger schematic

Dry Cell battery charger schematic using LM741, 4011, BD139, BC548

TV transmitter VHF Bands I, II, or band III

This TV transmitter will handle frequencies up to about 250MHz, so it will work perfectly if you have on your telly. In principle, the transmitter should work up to 500MHz or more, using the BF959 bipolar transistor. You should be able to generate a signal on UHF channel 21, but I have not (yet) tried […]

RF circuit using 2SA1037K , UN 2112

RF circuit Design information RF circuit using 2SA1037K , UN 2112

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