Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => AmpTools/Tech Tips => Topic started by: PRR on June 27, 2019, 12:11:19 am

Title: An Ingenious Speaker Switch - 1929
Post by: PRR on June 27, 2019, 12:11:19 am

Uses a dead tube as a switch handle. Designed around an old 4-pin base, but would work on an Octal, especially if you have snapped-off (oops) the center pin.

Title: Re: An Ingenious Speaker Switch - 1929
Post by: Ritchie200 on July 05, 2019, 09:14:01 pm

My dad's old Radio Handbook from the early 40's also had a lot of electronic "woodworking" projects.  If it wasn't available, you built it.  Lots of creativity back then - and much was repurposed and reused.  Cool stuff!

Jim

Title: Re: An Ingenious Speaker Switch - 1929
Post by: shooter on July 05, 2019, 09:42:28 pm

Quote

much was repurposed and reused

I've been on a "crusade" about that subject  :icon_biggrin:

I just lernt but haven't verified it takes 150lbs of rockstuff to make a smart phone  :think1:
I think we were closer to perpetual use when everyone wasn't so smart  :icon_biggrin: