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Re: [IRCA] The VACTROL progress



Colin:

Did you ever take a look at these, as I had mentioned?

http://www.ebay.com/itm/5PCS-GENUINE-NEW-LCR-VTL5C-LINEAR-OPTOCOUPLER-DIP-4-8ZJ1-/231858914783?hash=item35fbde45df:g:6eYAAOSwe7BW0ZD4

And, with a design change I had mentioned,  I think the 10 turn pot and vernier dial are not needed. Did you try that?

Chuck
________________________________________
From: IRCA <irca-bounces@xxxxxxxxxxxxxxxx> on behalf of R. Colin Newell <coffeecanuck@xxxxxxxxx>
Sent: Sunday, March 6, 2016 8:30 PM
To: Mailing list for the International Radio Club of America
Subject: Re: [IRCA] The VACTROL progress

That must be a pretty old article (but very build-able!) as the VACTROL's I
can get are now around $12 (USD), Ten-turn posts (which the nimble fingered
could live
without ) around $16 (USD)

Totally into building more flexible products -- with a bit more direction
and experience.

-Mark Connelly via IRCA

>
> Steve Byan's original version Vactrol circuit used for Beverages can be
> adapted for Ewes.
>
>
> http://www.w0btu.com/Remote_Beverage_termination_control.html
>
>
> The trick is that the Ewe element would need to be redone with a
> two-conductor wire such as lamp cord, twisted pair, or speaker wire.
>
>
> Mark Connelly, WA1ION
> South Yarmouth, MA
>
>


--
Colin Newell - Editor and creator *of *Coffeecrew.com
<http://www.Coffeecrew.com> and DXer.ca <http://www.DXer.ca> -
VA7WWV | Twitter @CoffeeCrew | Victoria - Canada
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