Dale, I guess it depends on your perspective. I like 17m, and its phone band is only 58 kHz wide, with zero margin. The "real" width of the band is probably more like 52 kHz. Once 100 signals are jam
Bill, I think you'd have to do more than that. I had a T-bolt for many years back in the late 60's/early 70's and thought about increasing plate voltage....then reconsidered when I looked at the plat
Based on that response, I'd say: -Disable the RF keying circuit in the Mirage (really easy to do, just life the sense lead) -Use "hard keying" for the Mirage, as well as for the 2002. Problem should
"It depends on your definition of 'is'..." - Bill Clinton _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
The timers in commercial amps I've owned all prevent the T-R relay from engaging, thus preventing drive to the tube(s). They don't key the B+ in any way. In my homebrew ceramic-tube amps using tetrod
Don't know why you'd smell anything if it was a "tuned input" problem...although I suppose the little slug-tuned inductor could go "poof," or the mica caps could flash -- but I'd think that would hap
Using an old Tek 575 curve tracer works, too. Those can deliver thousands of volts bias, and let you not only run a rectifier prospect into avalanche, but allow you to look at the breakdown character
There aren't any mysteries in P-N junction physics or chemistry, but most hams don't know (or need to know) much about it. I've been reading the thread here a bit and some of the stuff stated is root
Far as I know, those aren't date codes. The D/C is usually in red ink along with the tube ID printed on the glass itself. -WB2WIK/6 "There is no reason anyone would want a computer in their home." -
You might want to read: http://www.eham.net/reviews/detail/79 Very interesting comments, including a recent one from a VE3 who obviously knows the owner of this defunct company... -WB2WIK/6 Can anyon
A pair of 4CX250s will easily deliver 800W output on six meters, what's so unique about that? The 3200 volt part is pretty scary, though, since these are 2000v tubes. My 40+ year-old Johnson Thunderb
3200v on a 4CX250 is kind of scary....usually you need a ~ 5:1 ratio of plate to screen voltage for linear operation with this series, and that would be ~600v on the screens. Yikes! -WB2WIK/6 "Nobody