Layout credit: LMNC (Sam Battle)
As requested by @PekTeragon
Transcription of instructions:
- Always cut center pin of transistor
Layout:
LMNC Videos on the matter:
The simplest DIY audio oscillator? not a 555 chip. reverse avalanche
The simplest DIY Oscillator? Synth Project PART 2
Bill of Materials:
SMALL STRIPBOARD 93X55MM (COPPER)
https://www.taydaelectronics.com/small-stripboard-93x55mm-copper.html
$0.66 / £0.50
Quantity: 1
1K OHM 1/4W 1% METAL FILM RESISTOR ROYAL OHM TOP QUALITY
https://www.taydaelectronics.com/10-x-resistor-100k-ohm-1-4w-1-metal-film-pkg-of-10.html
$0.012 / £0.0092
Quantity: 1
100K OHM 1/4W 1% METAL FILM RESISTOR ROYAL OHM TOP QUALITY
https://www.taydaelectronics.com/10-x-resistor-100k-ohm-1-4w-1-metal-film-pkg-of-10.html
$0.012 / £0.0092
Quantity: 1
6.35MM 1/4" STEREO PHONE JACK
https://www.taydaelectronics.com/6-35mm-1-4-stereo-phone-jack.html
$0.45 / £0.35
Quantity: 1
100K OHM LINEAR TAPER POTENTIOMETER SOLDER LUGS ROUND SHAFT DIA: 6.35MM
100K OHM Linear Taper Potentiometer Solder Lugs Round Shaft Dia: 6.35mm
ALPHA - Get It Fast - Same Day Shipping
Price: USD 0.5
$0.50 / £0.38
Quantity: 1
10K OHM LINEAR TAPER POTENTIOMETER SOLDER LUGS ROUND SHAFT DIA: 6.35MM
10K OHM Linear Taper Potentiometer Solder Lugs Round Shaft Dia: 6.35mm
ALPHA - Get It Fast - Same Day Shipping
Price: USD 0.5
$0.50 / £0.38
Quantity: 1
10UF 25V 105C RADIAL ELECTROLYTIC CAPACITOR 5X11MM
10uF 25V 105C Radial Electrolytic Capacitor 5x11mm
Get It Fast - Same Day Shipping
Price: USD 0.02
$0.02 / £0.015
Quantity: 1
0.047uF 50V Ceramic Disc Capacitor
0.047uF 50V Ceramic Disc Capacitor AEC Brand - Best Performance
AEC-Get It Fast - Same Day Shipping
Price: USD 0.06
$0.06 / £0.043
Quantity: 1
2N3904 NPN GENERAL PURPOSE TRANSISTOR
2N3904 NPN General Purpose Transistor
Fairchild - Get It Fast - Same Day Shipping
Price: USD 0.02
$0.02 / £0.015
Quantity: 1
LED 5MM RED
https://www.taydaelectronics.com/leds/round-leds/5mm-leds/led-5mm-red.html
$0.03 / £0.023
Quantity: 1
AWG 22 BLACK HOOK-UP WIRE 1FT (30CM) SOLID
AWG 22 Black Hook-Up Wire 1FT (30cm) Solid
Get It Fast - Same Day Shipping
Price: USD 0.1
$0.10 / £0.076
Quantity: 5
AWG 22 BLUE HOOK-UP WIRE 1FT (30CM) SOLID
AWG 22 Blue Hook-Up Wire 1FT (30cm) Solid
Get It Fast - Same Day Shipping
Price: USD 0.1
$0.10 / £0.076
Quantity: 5
AWG 22 RED HOOK-UP WIRE 1FT (30CM) SOLID
AWG 22 Red Hook-Up Wire 1FT (30cm) Solid
Get It Fast - Same Day Shipping
Price: USD 0.1
$0.10 / £0.076
Quantity: 5
Total cost of components:
$3.80 / £2.94
I recommend getting more components than is listed here in case of mistakes or the occasional bad component. Its cheap anyways so fund future endeavors and save yourself some agony. To my knowledge Sam didn’t cover how to hook this up to an audio jack. You should just have to hook up the wire labeled “GND” to the ground of the jack socket, and the wire labeled “out” to the other. Easy Peasy Lemon Squeezy.
I also recommend pairing this with the super simple mixer if you plan on making a few of these. Sam has a great stripboard layout for that as well. To see the BOM for that, make your way over here:
Layout credit: LMNC (Sam Battle) Transcription of instructions: CGS dc mixer in its simplest form basically. I use this circuit in many things. Including the bruel and kjaer fixed filter bank, who’s video I made this strip-board layout for. Remember if you are using a plastic panel, make sure to ground all jack sockets Potentiometers are facing up. Pin 2 of the TL072 is where all the inputs go into, you can actually have as many inputs as you want (in the bruel and kjaer fixed filter bank video…