Hella legit guys, got this from Green Dungeon Alchemist Laboratories:
This is an exclusive video for Bands Play Synth, demonstrating the Obtruta MK1; an unusual analogue synthesizer and sound machine, filmed from the operators point of veiw by a camera strapped to my head (which is why it is a bit wobbly and out of frame sometimes).
This sound machine & synthesizer is now for sale on ebay!
Buy it with money and it could be yours today!
This is one of my sound machines, built a few months ago now but the idea behind it is so adaptable that I’m constantly developing it … do I even have shcematics for this!?
Just checked my files and yes I do! In the form of hastily scribbled incoherant notes :D
Technical details:
The core of this device is a 4089 frequency “multiplier” chip, which acctually divides the frequency weirdly- as I’m quite aware, that is just code for: Brilliant sound manipulator!
This archaic chip outputs anywhere between 0 and 15 pulses every 16 clock cycles, the number of pulses determined by 4bit binary numbers between 0 (0000) and 15 (1111).
Use the strobe input to control both the output and output-bar, and the cascade input is OR’ed with the output-bar.
Want one of your own? Then roll up ladies and gents and bid on the auction! http://www.ebay.co.uk/itm/8159R-Sequencer-Rhythm-Generator-homemade-vintage-junk-synth-synthesizer-/150778158205
