Hi, Does anybody know exactly how a 6-5906 sound button works? I took one apart (there are 2 screws under the bottom sticker).
I understand how whistle controllers work & diodes work. However, diode #7 is a direct link to the in/out wires when button is pushed. The other 6 diodes are in series like when you string diodes as a volt dropping device. I don't get it. It seems like #7 would carry all the load since it would have much less resistance?? Why the other 6?
The switch is a simple on/off contact. Not pushed, the switch is closed bypassing the diodes. Pushed, the switch is open forcing current to pass through the diodes making 100% pulse dc. So far as I can see there is no provision for "make up" current as on a 167 whistle controller, or in the extra whistle winding in a multi control transformer with whistle button.
Maybe some of the electroinics experts can clue me in?
Very best, Don Johnson
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