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On Mar 5, 3:26 am, Mike Coslo wrote:
wrote groups.com: The simplicity was what attracted me to them. No filters, nonotch, no pbt, no RIT, no - well you get it. Note that the 75 meter one stops at 3.8 MHz. Heath figured that by simplifying the output pi network to the most extreme degree, they could save a few dollars. Coming up with a 50 ohm antenna was the ham's problem. The 75 meter rig I have tunes to 4 MHz. It's also a HW22a, probably a later mod. But all that simplicity is a good thing for a lad raised mostly on integrated circuits! 8^) The 75m transceiver is the HW-12A. It runs 3.8-4.0 MHz. That's all the phone band there was back when the rig was produced. There's a mod in one of the mags--CQ, I think--that puts in a fixed silver mica cap with a little trimmer cap in parallel for making the thing work on both 3.8-4.0 and 3.7-3.9 MHz at the flip of a mini-toggle switch. That'd give you a bit more room to roam. I am now looking at a Kenwood TS-830S. It's a hybrid, with tube finals. I really like it so far, although I don't see it replacing my IC-761. That's a pretty good rig for its era. The matching range is limited but it will handle 2:1 SWR without problems IMLE. I have been pretty impressed so far. The receiver seems pretty hot, certainly the sound is *good*. I'm listening to it right now, and it is simply very legible. Tuning is only one speed, and a tad fast. Seems strange just having SSB and CW, but overall I think I'll keep it. In it's era, the TS-830 was somewhat of a DXer's and contester's dream machine. That receiver has an extra filter slot for cascading filters. One can still buy after market filters for it. Dave K8MN |
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