Sunday, November 23, 2014
Broken Polivoks
Published on Nov 23, 2014 The Outsider
"Well... I was planning to use the beast in a show I played a few weeks ago (Nov 8, 2014) but 5 days prior it up and shat itself. As you can see/hear, there is a very, very faint, constant hum, and when the EGs are triggered the same hum gets louder. The hum doesn't change in pitch (i.e., all keys trigger the same pitched hum). The VCOs, Modulation and Mixer sections seem to be working fine. The filter is a bit different from before though. The bandpass doesn't seem to really change all that much across the range of the knob, whereas before it was definitely working properly. Also, The cutoff knob affects the hum when turned down almost to the off position. I've replaced all the capacitors already. I've also re-socketed and replaced over half the ICs (140ud8b and 140ud8a so far). I have no idea what is wrong with it... :( :( :("
If anyone has any ideas, feel free to comment.
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© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH
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