Hacking a Radio

Replies to This Discussion

Permalink Reply by Matte Resist on January 29, 2012 at 1:32am

I posted this to facebook too, and my father in law pointed out the rather obvious answer that I overlooked.  On a radio like this, the volume knob doubles as the on/off switch. So I either need to find an A50K pot with an on/off switch or just run those wires to a toggle.

Permalink Reply by smojo on January 29, 2012 at 3:43am

Yes those are the power on/off switch wires - don't connect anything else to them! They shouldn't be grounded or you'll short the supply and blow fuses.

Permalink Reply by Charlie Fricke on January 29, 2012 at 7:07am

You should be able to find a pot with a switch like that at Radio Shack or any little electronics shop.

Permalink Reply by Rob Schumacher on January 30, 2012 at 11:03pm

You might try spraying some electrical contact cleaner into the pot, if it's case is open anywhere, and rotate it back and forth a bunch of times.  Sometimes they are just dirty contacts inside Make sure its off and unplugged be for you try it.

Permalink Reply by Matte Resist on January 31, 2012 at 11:42pm

Thanks Rob.  I'll give that a try.  I've already got pots on order, but if I don't need to replace it i sure won't mind.  I'm sure I'll use those pots somewhere else.

Charlie.  I couldn't even find a 50K audio pot at radio shack, let alone one with a switch.  I couldn't find one with a switch anywhere.  Perhaps I was using the wrong terminology in my search, but I finally just gave up and ordered some off FleaBay that didn't have a switch.  Adding a toggle will be easy enough.

Permalink Reply by Charlie Fricke on February 1, 2012 at 1:30am

You weren't shopping at a mall Radio Shack were you?  Those guys only know how to sell you cell phones & toys :)

One of the better places I've found for small-timers like us to get parts is http://www.mouser.com/.  They have reasonable prices and you don't have to buy 50 of one thing.