> Patrick Martin wrote: > > We look forward to the results. For the extra $$$, is it any better?
That is the $64,000 - scratch that - several hundred dollar question. We should know before DX season. When I send it to Mark, it will be with permission to open it up and do a very close look at it. I'll do the same, but having a review and analysis from Mark will be very useful. I want a true idea of just what the thing can do, and how it does it. A "black box" review is fine, but an in-depth one with circuit analysis will be better. One of these days I will build another phaser myself. The design will be two "Tee" networks, series coils and shunt capacitors. Each segment of the Tee will have a certain inherent phase delay. Coils will be wound on ferrite toroids, and I have a massive variable capacitor from an older Hewlett-Packard audio oscillator. It has eight individual sections that look to be 20-500pf each. By setting the two halves so one decreases in capacitance while the other half increases, a variable phase shift of at least 240 degrees can be had. Add in a 0-180° transformer and switch, and it should do fine. Gain can be a simple pot on each side. What I need is a box to put it all in. Probably something the size of an HQ-180 cabinet will be needed. A "someday" project... Craig Healy Providence, RI _______________________________________________ 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]
