Here is what I would like in an auto tuner. 1. Balanced Output for ladder line - two sets of inductors and one set of capacitors (like the Rich Measures roller L design). The inductors can step along in parallel. No control software changes are needed - just another set of inductors and relays. The capacitors can switch between the input and output depending on the load impedance.
2. A current balun on the input side of the tuner driving the 2 sections of inductors. 3. 160m to 10m operation. 4. Matching range somewhat better than the Johnson Matchbox. 5. A rating for 150W max. power output. 6. A switch for bypassing the tuner and connecting the ladder line directly to the output of the balun. 7. A peak-reading, illuminated power-output meter. 8. A 4-position input (rig) selection switch. Right now, I have the following set up: Outside: Ladder-line fed Cobra Ultralite 160m to 10m antenna. On the desk: Johnson Matchbox for 80m to 10m. Drake MN75 with Elecraft balun on the output for 160m. It also has a bypass switch. Ceramic knife switch to switch the ladder line from one tuner to the other. Heath coax switch to select one of four inputs (2 rigs and 2 boatanchor receivers). Autek WM-1 peak wattmeter. Everything works fine, but takes up a lot of precious room on the desk. (I could put more boat anchors there!). Having a one-box, balanced auto tuner with those options would be great! IMHO, of course. John W2XS _______________________________________________ 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
