about 3 months ago - No comments
Here is a simple 12 V inverter for using a small soldering iron (25W, 35W, etc) in the absence of mains supply. It uses eight transistors and a few resistors and capacitors. Transistors T1 and T2 (each BC547) form an astable multivibrator that produces 50Hz signal. The complementary outputs from the collectors of transistors More >
about 3 months ago - No comments
This a 24 Watt Class A Amplifier circuit made from discrete semiconductors like 2N3055. This audio amplifier can drive up to 24W Class A into 8 Ohm speaker with an audio bandwidth of 100mHz to 100kHz flat. The input power is 305mV for 24W output into 8 Ohm (33dB gain) and the THD is very More >
about 3 months ago - 1 comment
This is a simple 60W class B power amplifier. This audio amplifier can work from 30 to 60V with the maximum input voltage around 0.8 – 1V. It is built with the well known 2N3055 and can deliver up to 80W on a 4Ω speaker.
60W audio power amp circuit schematic
More audio car amplifiers…
about 3 months ago - No comments
BF961 is a N–Channel Dual Gate MOS-Fieldeffect Tetrode, Depletion Mode.
BF961 Applications:
Input- and mixer stages especially for FM- and VHF TV-tuners up to 300 MHz.
Features:
Integrated gate protection diodes
High cross modulation performance
Low noise figure
High AGC-range
Low feedback capacitance
Low input capacitance
BF961 datasheet
about 4 months ago - 2 comments
LM10 makes this 50V power supply a quality one. With 2 LM10 we can build a short circuit protected power supply, with adjustable output voltage and current.
The output voltage increases linear with P1 and P3 adjust the current. P2 is used for adjusting the maximum output current (2A). This 50V power supply has a minimum More >
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