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Thread: Vintage Soviet Analog Synthesizer "PIF"

  1. #11
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    Well this would be a very non-standard present!

    Here is a link for another one FS:

    Soviet Vintage Analog Synthesizer "PIF" USSR Synth Russian Keyboard Piano RARE | eBay
    Last edited by alexstelsi; 02-04-2013 at 12:52 AM.

  2. #12
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    Oh wow!!!!! nice!!!

  3. #13
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    Here is one for sale on Ebay:

    http://www.ebay.com/itm/321097609431





    ---------- Post added 04-13-2013 at 06:12 AM ---------- Previous post was 03-28-2013 at 04:36 AM ----------

    UP for sale!
    Last edited by alexstelsi; 03-28-2013 at 04:38 AM.

  4. #14
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    damn this is killing my broke ass
    My subculture can kick your subculture's ass anytime anywhere
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    Modular Synth: . doepfer 6u and monster base

  5. #15
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    Last edited by alexstelsi; 10-21-2013 at 04:17 AM.

  6. #16
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    Hey Alex,

    Is there a tuning knob anywhere on the unit?

    It sounds like it's one waveform is a squarewave(?); do you know if that's truw?

    GJ

  7. #17
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    Hi GJ! There are only two knobs - volume & lowpass. There are no special tuning knob on the device. And yes its sound is more squarewave then saw etc... Combining Osc 16\8\4 buttons with vibrato and lowpass in different variations you can do all that sounds that you hear on demo.

  8. #18
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    Do you know what it's tuned too? The sounds are awesome, but on the demo, it sounds like the oscillators are drifting a bit... I'd just hate to get one and find out that I couldn't use it with anything else without radically changing keys/tuning. Is there maybe a screw inside for tuning or something ("under the hood," so to speak?)...

    GJ

  9. #19
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    A few folks have asked this same question elsewhere around the net and there may be some trim pots on the board to fix frequency drift issues (no hard factual answers to this one as there seems to be a desire to keep what is under the hood secret).

    It sounds a lot like a nor gate square wave oscillator with internal mixing of 3 frequency divided sections (highest octave is generated and then divided by 2 for the next lowest octave and divided again for the lowest octave) this could also be implemented as 3 separate oscillators with a voltage divider in front of each lower octave to drive them at lower frequencies.

    Lots of circuits out there for simple versions of this to make (without the keyboard control, of course); designing one with a keyboard control circuit wouldn't be that hard - just a case of custom implementing by finding nearest value components (usually resistors wired to the keyboard to change the driving voltage for each note) - mono-phonic design part is even easier as the higher the note the more the total resistance - i.e. each successively higher note is tagged off the immediately lower note in the design of the keyboard controller
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  10. #20
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    To GJ: Personally I never tried to do this but inside the device there are some screws (under each key) which you can tune up or down to some extend. Of course don`t expect the ideal tune because it is not a Moog Voyager or ARP it is a vintage toy with that bizzare synth-sound inside. If some drifting issues in tune will bother you - obvious the Pif is not for you! But for those who want to add some "spice" in there productions - it`ll be a cool addon.

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