…high-powered surround sound amplifier etc. For detail explanation about how this circuit works include the large schematic diagram, power supply schematic diagram and complete component listing, download this complete article…
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100W RMS Audio Amplifier
…ma. The current to the stage is limited by the 2N3094 to about 70 ma under worst case. The output is a full complementary darlington with paralleled outputs. Although you…
Electronic Bird Chirp Sound Generator
…the transistor is cut off. This causes the oscillation to stop, the capacitor discharges through the base emitter circuit of the transistor and oscillations start again. Altering these components alters…
Door Knob Touch Alarm
…door. The supply power for this door touch alarm is 3V DC, two AA batteries can be used to operate this circuit to make this circuit portable. Since this circuit…
15W FM RF Amplifier with 2SC2539
…resistance ceramic package with flange Ability of withstanding more than 20:1 load VSWR when operated at Vcc=15.2V, Pout=18W, f=175MHz, Tc=250C Download the datasheet of RF Power Transistor 2SC2539 from te…
Three Stage 9V FM Transmitter
…The tank circuit is connected in a Hartley oscillator circuit. The final stage built around T3 amplifies the output RF signal. Download the complete manual and explanation in PDF version…
50W Audio Amplifier with TDA1514A
…tv and other audio applications. The high performance of the IC meets the requirements of digital sources (e.g. Compact Disc equipment). The circuit is totally protected, the two output transistors…
Motor Speed Control with MAX4295
…filter (L1, L2, C1, and C2). But, unless the control circuitry shown is located near the motor, you should include the filter to reduce EMI. Download more explanation about the…
50W AF Power Amplifier with STK4036II
…power supply voltage is +/- 35VDC. Use heatsink to prevent overheating on the IC and maximize the STK4036II performance. Power Amplifier STK4036II features: Compact package for thin-type audio sets Member…
60W AF Amplifier With STK-0060II
…system Dual power supply Darlington pure complementary circuit Metal substrate used IMSTc makes good thermal stability Able to design freely previous section of power amplifier. This leads tone control designing…