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| Boomboxes, Ghetto Blasters and such... |
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| knave:
On a separate note, here is a pic of the first Bluetooth speaker box I made. You'll probably recognize it if you ever shop Harbor Freight. Box was cheap, $5 bookshelf speakers from Goodwill, $10 Bluetooth Module, and a 2000Mah 12v battery. I use this every day at work as my PC speaker. |
| nitrogen_widget:
--- Quote from: pbj on October 17, 2020, 07:06:18 pm ---If your dad was in oil they probably worked at the same place. :dunno --- End quote --- eyeglass frames. i want to say it was black with purple or pink graphics. he also won a box with a small black and white TV in it a few yrs earlier. |
| knave:
My plan was always to build a metal ammo can boombox/Bluetooth speaker. I was pretty happy with this. Battery lasted long, long time. Sound quality was ok. I think the metal case limited range for "some" devices. I used it in the yard until this summer when a freak downpour caused it to get wet. It's fine but I disassembled it to clean it up. Positive is that because its an ammo can its water resistant save for the speaker cutouts. I plan on making a few more of these in differing configurations. Including one with waterproof speakers. in the meantime I'm going to build out one of these Vintage Boomboxes by adding Bluetooth, and a rechargeable battery. I received the Sony, everything works but the fast forward and rewind are sluggish, needs belt(s) for sure. I like the idea of playing with shortwave radio. Really interesting, its circuit boards are large breadboards with physical jumpers as traces between components or bundles of wires. Date code on the motor is 1976... |
| jeremymtc:
It's not made from a vintage boombox or ammo can, but I did scratchbuild a little bluetooth enabled combo amp over the fall. I had a $25 Ebay coupon burning a hole in my pocket and a derelict Sony shelf system sitting around, and thought it might be fun to knock something together using one of the inexpensive class-d amplifier boards I'd been seeing around the web. The amp board I chose is TPA-3116 based, and outputs in the neighborhood of 50W/channel in the configuration I run it in. I used a bluetooth media player module, a speaker protection circuit board, some 1/8" and 1/4" phono jacks as L/R inputs, a 24V switching power supply, and an adjustable stepdown converter to power the bluetooth module. The amp board I used has an onboard EQ and is set up to be panel mounted, so I made acrylic panels to mount the amp/EQ and analog inputs to, and recessed them into the top of the cabinet. The BT module faceplate is flush-mounted into the top of the cab. The cabinet itself is styled a bit like a small stage monitor with a slanted speaker baffle and z-back profile, and made from plywood glued and screwed together with battens. It has rubber feet on the bottom and on one end so that it can be used either horizontally or vertically, and I added a wire pull handle for easy portability. I'm pretty happy with how it came out. It works great after tracking down and correcting a couple of grounding issues with the inputs and amp board, and can be used as a stereo practice amp, a bluetooth speaker, media player via USB and SD card, FM stereo, and party and cinema speaker for outdoor movie nights with a projector. |
| Vocalitus:
Well what ever the device make sure you have some grape soda and a decent Rush mix tape. Essentials for arcade gaming. |
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