rare birds: Powertran Transcendent 2000 with sub oscillator mod

Рет қаралды 1,373

4 ай бұрын

Here is a Powertran Transcendent analog synth I just serviced.
I took the opportunity to make some modifications, mainly adding a sub oscillator circuit.
I used a simple 4024 chipset and routed the -1 and -2 octave outputs to the "noise" volume pot with a 3 positions switch so that I can chose either octave sub or the Noise generator as the source for that pot.
I also made modification to the CV and gate circuit which originally are not the common 1v/octave V-trigger kind.
Now it can be used with any standard CV / gate interface.
And last modification was a lighter one: adding a LFO rate blinking led.
Very nice synth, capable of quite a wide range of sound thanks to dual resonant filter mode (Low Pass / Band Pass), S+H, repeating enveloppe, PWM etc … and now with a sub oscillator :-)
PS: this synth is not unstable in pitch. If you look carrefully you'll notice there is a slight amount of lfo (saw) modulation applied to the OSC pitch almost all the time

Пікірлер: 9

@dimensionalineage 4 ай бұрын

Look Mum No Computer has produced videos on this synthesizer here on the 'T00b. I like its pleasantly hollow square sound. I am a fan of such oddball mono-synths.

@pault0910 4 ай бұрын

The Joy Division synth.

@ohm_studi_ohm 4 ай бұрын

That’s one of the reason I was looking for one.

@nicolenico167 4 ай бұрын

Toujours des machines incroyable 👍

@domgraveson1942 4 ай бұрын

home kit wasnt it? I found one discarded in a cupboard in 1994 at my workplace. took it home and it worked! my first analog synth :)

@ohm_studi_ohm 4 ай бұрын

Yes It was a home kit. Very simple actually but build quality and thus functionability depends on the hobbyist skills who built it. Tricky part is the keyboard which has double contacts but no bus bar and can be a hassle to set correctly. And most of the issue you’ll get from the synth comes from the keyboard.