Bare SAW VCO interest?

Starspawn · Joined: Jun 14, 2013 Posts: 85 Location: Oslo

I made a striboard of this Smile

To mate with a 5pulser ...

EDIT for revised layout.
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Moosgummi · Joined: Feb 01, 2015 Posts: 15 Location: Hiltown, Germany

Nice! Thanks for posting this. Time for a stripboard IF synth now...

frijitz · Posted: Mon Jun 20, 2016 6:58 pm Post subject:

Thanks for the interest. It's good to see folks using good ole stripboard.

Ian

Starspawn · Joined: Jun 14, 2013 Posts: 85 Location: Oslo

Hows this for interest? Smile

This is the plan I mentioned.

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Moosgummi · Joined: Feb 01, 2015 Posts: 15 Location: Hiltown, Germany

Ooooh, I like this!

Starspawn · Joined: Jun 14, 2013 Posts: 85 Location: Oslo

Well under way with these things now. But coming back to the saw core together with the other things I realize its level is to low. Just 1V P2P.

Is that correct for the schematic?
Theres no change from -input to the out, and it looks like it should be 5x gain except for the parts going to ground?
Ive had some trouble with LF351 before ...

As you see in the stripboard ive connected balance to the -input, dont rememer why, but without it I dont get sound, the other balance pin doesnt seem to matter.

And is the schematic correct in less than 2pf value for the lf351 cap??

I also took out the reference voltage and used the layout from the teezer instead, which was more stable.

And ooops, if you read this Ian look at the 2Q/4Qs on the panels ... someohow I imagined a bias CV input, but theres no such thing Very Happy

Could there be though?

EDIT: Never mind, tayda LF351, enough said. Changed for 071, lifted balance pin, all OK.