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 <[email protected]> on behalf of R. Colin Newell <[email protected]> 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 _______________________________________________ IRCA mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: [email protected] _______________________________________________ IRCA mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: [email protected]
