Switch terminology?

Look for "DP3T" - double-pole, three-throw.

Good Luck! Rich

No, "stops that you go through" is exactly what "throw" means, except for those pesky "center-off" switches.

If the pole is the source, then the throws are the destinations.

Hope This Helps! Rich

maintain

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The FET is part of the power regulator circuit. You'll find these or a compatible part on any P4 motherboard near the CPU and near several coils. Some procesors draw quite a large amount of power during startup. Go to a computer shop and pick through their junk for a "free" source of parts.

I would design the oscillator to run at say 2KHz or so. I use a simulator program to pick the values. Do you need a copy?

The diodes allow for a different value of R during the charging versus the discharge time.

Good luck....