how much output

[hossless]

cbman, the guy that told you not to go any higher than a 3 watt dead key is about right. Probably 2 to 3 watts, you don't want to drive it too hard.



Hossless


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[4CX400000watercooled]

Yeah, this amp already has a tube in it to drive the output tubes, so, I would say 2 to 3 watts max!! As stated above, it's not good to stress those 6lq6's too hard, they won't take it, and they are hard to find, and a little to expensive for what they do!!!!!!!! Set your DK to 1/2 watt and let it swing....ahhhhh gotta love that tube audioooooooooooooooooooo.....





<img src=http://www.ezboard.com/intl/aenglish/images/emoticons/devil.gif ALT=":evil"> <img src=http://www.ezboard.com/intl/aenglish/images/emoticons/devil.gif ALT=":evil"> <img src=http://www.ezboard.com/intl/aenglish/images/emoticons/devil.gif ALT=":evil">


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[freecell]

TV Sweep Tubes have not been manufactured for some time. The best tubes were made before 1983. RCA, Sylvania, ECG, and certain production runs of GE, Raytheon, etc., seem to be much better made than tubes built after 1983. Tubes available for sale in the last few years do not seem to hold up as well as original tubes that came in the equipment. From about 1950-1980, SSB amateur radio equipment often used sweep tubes in “SSB” amplifiers. Amplifying “AM” signals can overheat tubes due to their low power dissipation. When using sweep tubes, care should be taken to limit carrier level to about 50 watts output per tube (6LQ6, 6LF6, 6JE6, 6HF5, 6JS6C, etc.). SSB P.E.P. can operate at about 70 watts P.E.P. per tube. Exceeding these power levels will rapidly reduce tube life. Don't be confused by the model number or claims of some equipment such as D&A, Varmint, etc. They are overly optimistic.


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[JustinDePolis2]

The above by the way is a excerpt from R.F. parts company in San Marcos. I believe it is correct to give credit to the source.



Next, why is it that everyone wants to "squeeze" every last watt out of their equipment? For those of you, here's the electronic formula:



1 "S" unit equals 6 db



Therefore 1/2 of a S unit equals 3 db



3 db is the equivalant to doubling your power (3 db is a time two multiplier)



So every time you double your power, you go up half of an S unit, barely noticable to the person on the other end, and you're shortening the life of your equipment. For a streight out answer, it's best to limit the power output of sweep tubes to 30 watts carrier per tube, DEPENDING upon the type of tube, the 6LQ6's were a little more delicate than alot of the others. Keep SSB PEP to about 100 watts per tube or less. Remember they don't sell for 4-5 dollars any more.



Take care,

Justin


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[cbman]

kris power pump 1-6jg6 driving 2-6lq6 tubes.need to know what kind of output i should be getting? and is there another type of tube i could use to get more output? thank's<img src=http://www.ezboard.com/intl/aenglish/images/emoticons/ohwell.gif ALT=":">


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