Hello Jack, Controlled carrier has tradeoffs. You are trading reduced linearity and tricker audio adjustment for greater PEP. Not that it can't be done and sound reasonably good.
Another point is that tubes with zirconium or titanium on the plate NEED to get red to getter properly. I'd be more concerned about the power supply than the red plates. But that's just SSB amps in general. I don't have any experience with the SB200. It would probably be easier and more productive to just reduce the carrier power on the 430 until you're happy with the amp. I doubt anyone on the other end would notice 20 or 50 watts difference and your audio would probably sound cleaner too. But the main thing is to have fun and enjoy your radios. If you want to put the T60 on the air, by all means drive it with a little carrier from the 430 until you get your crystals. You won't have to worry about being on frequency. :) 73' KA5MIR On Sunday 15 October 2006 11:42, Jack Schmidling wrote: > My thoughts on an advantage of the T60 is that, as it has > controlled/suppressed carrier, the idle power is a lot less than the > TS430. As a consequence, I could drive a linear (SB200) a bit harder > and get more power out of it than when using the 430. > > When running the 430 at about 15 watts, and a plate current of 150 ma on > the amp, the plates get redder than I like. Seems like I should be able > to increase the input significantly with the T60 before the plates got > to the same temp. > > Is this correct reasoning? > > I think I will just get some xtals for the T60 as I am getting a Ranger > soon. > > js ______________________________________________________________ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net