[sdiy] Anyone sucessfully built an EFM Vco4d?

[Tom Arnold]

On Tue, Jan 25, 2005 at 11:15:27AM -0000, Julian wrote:
> You do anythng special to it to get it to work?  
> 
> Just trying to work out if its my mistake or not.

I'm not at home right now within reach of my VCO4D's, but are a couple of
the TL074's getting very hot?  If so, check out the pinout of the FETs.
Use the tri out as your test point and not square out as the square is
missing a pullup resistor.  

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