Every so often projects start out simple but end up taking way more time than first anticipated. Here is one of those projects that got out of hand. My original intent was to make a small, simple, powered speaker box. Nothing fancy, just a low power amp, used computer speakers, all housed in a tiny container. I had no plan to make a "themed" project.
During fabrication, the project seemed to take on a life of its own. After I fab'd the speaker grill, it simply looked like it came from the 1950s. It reminded me of an old Collins ham radio. So instead of steampunk, which I've posted before, https://www.instructables.com/id/Steampunk_Headset/ the Dieselpunk Stereophonic Amplifier was created.
A couple of highlights...
The typical DC power connector and headphone jacks are hidden behind screw-on caps. The power indicator is made to look like a fuel level gauge and contains REAL 5W-30 motor oil! When connected to AC power it gives off a 60hz hum. That was unintentional but it adds to the Dieselpunk feel. The box is painted in hammertone and aged to give it a greasy Dieselpunk look.
Counter sink bit
Hot Glue Gun
Stepped drill bit
2 Watt Stereo Kit - Carl's Electronics P/N K115
Small Lunchbox - Michaels
Two - Speakers - salvaged from old computer speakers
Two - 12 inch long brass rods 1/16 inch dia. - Hobby Shop
12VDC Power Transformer
Two - 1/4 FLR x 1/8 FPT brass elbow - Orchard Supply Hardware (OSH)
1/4 inch and 5/16 inch brass compression joints - OSH
Two - Chains - Goldmine Electronics P/N G15272
Toggle Switch - OSH
Rubber Toggle Switch Boot - Goldmine Electronics P/N G16872
6 x 18 inch Sheet Aluminum 0.025 inch thick - OSH
Aluminum Perforated Sheet 0.063" (0.125" holes-0.1875" stagger) 3003-H14 12 inches x 24 inches - Online Metals
1/2 inch angle aluminum - OSH
1-1/2 inch dia. Flange - Weird Stuff
3.5mm Stereo Jack - Radio Shack P/N 274-274
DC Power Jack - Radio Shack P/N 274-1577
DC Power Plug - Radio Shack P/N 274-1569
9V Battery Snap Connector - Radio Shack P/N 270-324
Red LED - Radio Shack P/N 276-330
LED Resistor 560 ohm Radio Shack P/N 271-1116
Perfboard - Radio Shack P/N 276-148
6 AA Battery Holder - Digikey P/N BH26AASF-ND
Foam Rubber - Recycle Bin
1/8 inch masonite board - Scrap Pile
Acrylic tube 3/8 inch OD - Tap Plastics
Six 1-1/4 inch long mounting bolts and nuts 6/32
Various nuts and bolts with tapered heads
Old pot lid knob - Thrift Store
Silicone sealer - OSH
Scrap sheet plastic for the nut retainer - Recycle Bin
Clear label for printer - Office Depo
Gray hammertone spray paint - OSH
Silver spray paint - OSH
Plumbers strapping tape - OSH
5-Minute epoxy - OSH
Crazy Glue - OSH
Black enamel paint (nail polish) - wife's drawer
This Instructable is medium to high level. Please take the appropriate safety precautions when using any tools. Once, I almost cut my thumb off with a simple coping saw. So, be careful!
This is the simple and fun step.
Build the stereo amp per the instructions. The exception is not to solder the volume potentiometer to the board. Also there are gold connection pins that can be excluded. Instead, wires will be soldered directly to the board during the final assembly. However, it is recommended to temporarily wire up the pot to test the circuit.