Vsupply = 12VDC
2 – 2SC5200 BJTs on a heatsink
2 – 10k, 1W resistors from base to emitter
12 – 120 ohms connect 6 120 ohms 1/4W in parallel. Two bundles of 6 resistors, each bundle equals 20 ohms, 1.2W.
Connect the bundles from the collector of one BJT to the base of the other BJT.
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