[TenTec] 229B tuner: Slight upward creep of SWR

[Peter Klein]

Thanks for all the good info. One thing though. The SWR creep may be a “clear indication“ that I am using the wrong balun, but that ain’t the case. I am using a 1:1 Guanella balun, 17 turns RG-58 on whatever torroid Rick, DJ0IP recommended. The antenna I noticed the “creep“ with is a 40 foot vertical dipole, which has quite low impedance on 40m and 80m even without the “help” of a 4:1 balun.

My purpose in asking my question was to ascertain whether it is safe to run my set up at 100 W despite the creep. I can easily tweak a dial to retune when running digital. And a creep never rises past 1.4:1, and usually less. I don’t care about perfection, I just want to make sure I’m not risking blowing any disc capacitors. My educated guess is that everything is fine, I simply wanted a reality check here.

Rest assured, if I was going to run higher power, I would be making the suggested modifications. But that’s not really in the cards right now.

--Peter, KD7MW