Reply to "New MTH smoke unit resistor for Super Chuffer"

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Well, you won't find that little regulator board on eBay, I made that one for myself. You can dispense with the 1uf capacitor as a rule, it's there to provide stability of the 3-terminal regulator. It's frequently omitted, I just put it there as good design practice.

Here's the BOM from the hip, all of this is easily sourced.

22uh inductor (25ma or greater current rating)
1N4003 Diode
100uf (or larger 35V Cap
78L08 3-terminal regulator (TO-92)

Follow the above diagram and you should have an 8VDC supply.

Or you can send me an email and I'll sell you that little module ready to go.

5/9/209:32 AM

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