These PCB's are my version of JB's Ferris Wheel B/C circuit.
Each PCB is a 1/2 bridge with 5 pairs of pnp/npn MJL transistors
2 PCB's mounted back to back make a Full Bridge circuit, that can drive a very large Window Motor, or a large Zero Force Motor
The spacers shown on the PCB's are too long, but allow you to see how it works.
If the short spacers are used, than the transistors on both PCB's can be laid over and mounted to 1 Heat Sink, 1 on each side of the PCB's
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