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a couple of quick questions..1) did you get your basic schematics from a particular source (book or web page)..I'm interested in just parts of the whole (no need at this point for the spooky eye's or trip wire). I'm very interested in the vibrato effect but can't wrap my head around how it is achieved.2) You have output's and inputs running down from the first schematic, the one from pins 5 & 10 appears to go to the eye's and is explained, but the other line going to the trip wire appears to just effectively "ground out" VCC to the 2nd 556. without the trip wire the top circuit will run until the power is cut?. I need an almost constant output, not a one shot per triggering (remove the 100 MFD at pin 2?3) a bit of confusion as to the far left 556, neither of the outputs are used?..I'm sure this will male sense but a brief explanation would be greatly appreciated.
thanks...I found some 556's on Amazon prime and the added "real estate" on the PCB wasn't worth the headache of making it work with 555's.... I've build a few "optical theremins" and not impressed by the sound so I'm trying to find alternatives. I just don't see the logic in Arduino based projects and I'm trying to go "old school", but components are getting hard to find. I haven't posted any instructables recently because I get started and finish them without doing any documentation..thank's for the prompt reply
this is a 5 year old instructible so you may not still monitor it... (first draft TMI)....the first circuit is made with two 556 chips (dual 555's), would it be possible to build it with 3 555's (I don't have a supply of 556's and I need that particular sound effect soon....just a yes or no would be fine, but if you can attach the schematic it would save me some headaches.. more questions if I get a response...
Sculpt a head...later stages have LED eye's built in
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