Very nice, Steve! You can see my homebrew balanced tuner in the picture with my listing on www.QRZ.com/ac7ac.
The alligator clips attached to the wires above the coil are for the antenna feeder connections. There are two alligator clips nearer the bottom that short out turns as needed. The knob on the end operates a split stator capacitor directly under the coil. The knob on the front operates the variable in series with the link to control the coupling. That coil actually plugs in. It works FB from 80 through 10. I have a larger coil for 160 meters. The coil form is a 2" acrylic tube with four 1/4" tubes glued to it to space the turns away for easy tapping with the alligator clips. The "case" is 1/8" hardened masonite (a pressed wood product) with a 1/2" wood base and uses aluminum angle for the corner fittings. The top is acrylic sheet to handle whatever RF voltages might appear between the fittings. The variable has 1/4" plate spacing for high voltages. It works very well. A PDF file with close-up photos and more details is available at www.cobi.biz/ac7ac.pdf Ron AC7AC -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of list1 Sent: Saturday, August 16, 2008 3:43 PM To: [email protected] Subject: [Elecraft] RE: balanced tuner Hi All, Just finished mine. Works Well so far. I have some pictures here: http://www.pituch.net/Steve%27s%20Page/Radio/Link%20Coupled%20Tuner/tuner1.h tml or just drill down from: http://www.pituch.net/ No documentation yet......later. Elecraft should make it a kit... hi hi. Steve, W2MY _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
