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This is getting really weird now...

Posted by Dman (A) on May 2, 2015 at 14:50:24

In Reply to: RE: Since the pic doesn't show up, good luck with that... posted by coffee-phil on May 2, 2015 at 13:29:15:

coffee,

I posted something last night, in response to you, but I guess that AA spaced it. Seems to be doing that a LOT lately to things I post... Weird.

Having said that; Yes! I did get the speed up to the proper range! Once I did the resistor replacement on the first R-value as you suggested, the trim-pot now can be set to around the 9 o'clock position for accurate 33.3 (see pic above to note that I have a correct 50.00hz signal now!

I also checked the mechanical accuracy by playing back the Cardas Sweep record, which has a 1kHz tone on it. The DMM reading came out at 1.001kHz, so things are much better now.

BTW, D-Wife, when she got back from her vacation, heard Madonna's Vogue and IMMEDIATELY KNEW it was at the right tempo/pitch!

Thanks again for your help (if even in making me remember how to calculate that R-value!)...

Cheers,
Dman
Analog Junkie

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