Hi folks,
I am retired and just started back into electronics after 30+ years. A lot has changed.
I have been doing a ton of reading, following this forum and viewing many of Dave's videos.
MY question is this:
I built the xr2206 function generator, and it does not work.
During basic measurements, when I measure across the input filter caps
(electrolytics) I get a +Vcc. However, when I measure from the
positive terminals to circuit ground, I get –Vcc. Negative voltage is
applied at some 2206 pins. Is this normal? I do remember Dave's tutorial on
op-amps where the input can be a virtual ground, but not sure that applies.
Appreciate any help.
Joe