[sdiy] LM358 datasheet VCO on spilt rails

[Matthew Smith]

Just out of curiosity, is the V+/2 shown on the schematic simply the 
supply voltage split with a potential divider, or does it require buffering?

Jim - what was your actual control range - 0V to +18V, or -9V to +18V? 
(Assuming the first, wanted to be clear.)

Given me an idea. Excluding PCB cost, a VCO for about $0.25. 4 for a 
dollar. Hmm.

-- 
Matthew Smith

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