Shared projects

Dual Voltage Power Supply

by stevegetsiv.
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2 layer board of 4.34x3.05 inches (110.16x77.47 mm).
Shared on June 27th, 2015 22:53.

Non-regulated positive and negative rails along with regulated rails so that you can power both transistors and op amps from one board. See my class A audio amplifier board.

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Class A Output, Current Source

by stevegetsiv.
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2 layer board of 4.34x3.45 inches (110.16x87.63 mm).
Shared on June 27th, 2015 22:48.

By SG Technology, this class A audio output amplifier uses a differential amplifier input, an op amp VAS and 8 BPJ Transistors in the output stage. Yes, it puts out some serious heat, depending on the bias current as set by the external pot.

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