Electronics > Projects, Designs, and Technical Stuff
Yet another resistance decade box
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Dave:
I forgot to mention that the similarity to the Aperture Laboratories logo is strictly coincidental. ;D

You could remove those direction selection jumpers on the bottom and reduce the size of the board slightly. It doesn't matter which way the current flows through a resistor.
Fortran:
@Dave - In order to avoid lawsuits, this too was strictly coincidental  ;D
Made it for my nephew.  It's a "lights and sound thingamajig(tm)".
PeterZ:
I etched a small test pcb today to check if the make-before-break operation of the switch. I used the continuity tester to check if there is a short beep when the switch passes from one setting to another.
Result: yes, it does work.
I think i will make two versions of the board: one as in original: break-before-make and the new make-before-brake, maybe a few versions of a small 5x5cm panel (sort of), consisting MBB only, BBM only and MBB+BMM versions.
BravoV:
Subbed, just in case there is a group buy, count me in.
nuno:
 :-+  :-+
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