Not so long ago Surplus Sales listed MRF458 MPs ... at $150. I think to substitute anything else (MRF454, etc) would involve redesigning the broadband feedback networks, and possibly changing the inp
seek to buy : Model 224 audio CW filter for ARGOSY 525 Model 223 noise blanker Sorry I missed you last week. You will have a hard time finding either of those items. I understand that the noise blan
So what you are getting at is recreating the crowbar circuit to trip things just like the AC supplies do? (At least that's what the Century 21 does off the top of my head.) -- Neal <snip> -=-=-=-=-=
Jerry and the group: I wondered if there was a name for that effect. Polyrope was indeed my enemy one 30 below moonlit night out in the Alaskan Bush. I had a 20-foot spruce pole mast attached to a ca
That was exactly it. It was holding up the end of an 80m inverted vee and I tried to bungee the line but it just found new resonance. I finally just dropped the line that night. I really needed to g
Agree. I think I'd ask TT to get VERY specific about what part failed - not just say it's a bad board thinking that sort of reply gets them off the hook. This problem has wider ramifications about c
Uh - yeah. My solution to the problem is this: Barring any intellectual property or licensing issues, release a version of the source code into the public domain and let a 3rd party manufacture the s
Airdux is the stouter of the two - but still plastic - maybe a nylon or delrin, but not polycarbonate like miniductor. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
I do see that Maxim does offer a drop-in replacement for the DS1285. I'm curious enough about this as to contact TT next week. I was a few years behind you and yes - it takes quite a while to pump ou
My bad - I did mean polystyrene, but I was under the impression the Airdux coil had a denser plastic. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Guess it's better than the existentialisms "nothing exists for sure." rotfl ... Yes great fun after a hard Friday night on the list :) My insomnia is waiting in the bedroom for me, so bye for now. -
Robb, I was actually referring to the glut of TT rigs on ebay and elsewhere. I plan on contacting Ten-Tec tomorrow and discussing some possibilities with them regarding this matter. Having a spare is
My experience in field troubleshooting in the days of discrete components and early TTL/CMOS was that 90% of problems always had a relationship to a connection - be it an IC socket, bad solder joint,
OK - gotcha. We'll see what happens. But is it the EPROM? I didn't see where anyone said it was the problem for sure. -- Neal, NL7VL -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Yesterday I talked to a couple of people at Ten-Tec about the logic board situation. The bottom line was: There was really nothing that could be done as it was a "combination of things" that could ma
Hi Ron, I'm happy that other people are thinking about this! It's complicated. Whew! That's quite a task, and as you alluded to, but I don't imagine the company would be interested in helping - and t
Ron, I have not had mine for years and years, either. In fact, I waited a long time for one reason or another to get one of these. When they first came out I went through quite a WOW factor experienc
I had to laugh at you final remark. A good friend of mine in Eagle, AK once gave me a really cool mil-surplus xtal cw transceiver. I asked him why he would just give me the rig he had coveted for so