Friends, for a long time now, the input SWR on my friend's Ten-Tec Titan 425 is very high (average > 2 on all bands) - when measured with a MFJ analyzer at the input - with a 50R dummy-load at the AM
Good morning gentlemen, and thanks to all for the quick and concise replies. - One of the tubes being bad: Will see if spares are available - LPF caps going bad: My plan was to analyze the cut-off fr
Thank you Gerald. Yes sir, I totally agree with you about the Z/vswr variance because of the applied drive level. The analyzer test was done to get a ball-park figure, par se. Prior tests (inadverten
Thanks Louis. I'll try to get a good-known spare set of tubes. Note to Gerald: Roger that, sir. The SA test was only for the LPF alone - not in situ - just to find out the characteristics of all the
Thank you Carl (and all the others too). For a split second, I wondered why you wanted me to put some rag in the hole :-) It quickly occurred to me.... of course, to get the blower air through the wo
Thank you Jim. Yes, that is one simple test I missed. After reading your mail, it does look like a possibility. Last night I had my friend turning the band-switch as I sprayed De-oxit to the wafer sw
The first thing that comes to my mind is, the grid dissipation is 0W (4CX1000A), and the plate dissipation is lower than a 4CX1500B. I'm not sure about the o/p being lower in the 4CX1500B; should be