How about this!…it’s a 1954 Bell Sound 3725B P.A. Amplifier. This was in the basement of three Generations of my family and now it’s time to do something with it before I hastily trash it for the space. I probably would have actually sold it off on eBay, but this thing is pretty cool looking! Why not refurbish it? I guess some of the old timers like to use these still for blues harp and guitar too. The chassis is all steel and it is built like a tank. They were coined “the boat anchor” by some because of their mass at 29Lbs. Mine has a travel box that it is stored in. It used to have a cool looking chrome microphone (lost to the old GR crowd), and 2 speakers that clamped together to form another box, but I have long since destroyed them from my childhood tinkering. I think I spray painted them black and red and yanked the wiring out to connect it to modern equipment with a 1/4″ jack or something. I don’t even know what happened to them. Kids hey!
Anyhow…here it is…
Here’s the specs:
Specs from http://www.radiomuseum.org/r/bellsound_3725_b3725.html …
|Wave bands||– without|
|Power type and voltage||Alternating Current supply (AC) / 110-120 Volt|
|Loudspeaker||– This model requires external speaker(s).|
|Power out||25 W (unknown quality)|
|from Radiomuseum.org||Model: 3725-B – Bell Sound Systems; Columbus|
|Shape||Tablemodel, low profile (big size).|
|Dimensions (WHD)||16.25 x 7.5 x 10 inch / 413 x 191 x 254 mm|
|Notes||The Bell Sound model PA3725-B and 3725-B are AC operated 4 channel 25 watt audio amplifiers. We don’t know the difference between PA3725-B and 3725-B. The 4 channels are for 3 microphones plus phono.|
|Net weight (2.2 lb = 1 kg)||29 lb (29 lb 0 oz) / 13.166 kg|
|Literature/Schematics (1)||Photofact Folder, Howard W. SAMS (Date 7-54, set 244, folder 3)|
Now I have to go hunt for schematics.