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Good evening to the forum, does anybody use these tubes(4cx600j or jb)? How does it perform and what is the gain of this tube? SHOEMAKER.

I would like some opinions on what you think is the best desk mic for the Kenwood ts440s and why?

Hello everybody. I have a question about dbi. Whats the difference between an antenna with a 17dbi gain and a 48 degrees beamwith compared to an antenna with 18dbi gain and a beamwith of 42 degrees, or can you see any changes on the recieving end with 1 dbi of gain? Thanks in advance for your...

Hello again to the forum and Happy New Year. I have designed a monster quad using EZNEC 4.0: 6ELEMENT ON 48FT BOOM F/B31.03 ,17.92DBI@60FT, VSWR1.02@ 50.30OHMS(27.025). My concern is with the front/side lobes although they are pointing forward, the gain is 17.46. Would this make a differance in...

How many whats (rms) can a solid 12 gauge copper wire handle?

Hello everybody. Can anyone tell me what is the max height for a 4 element quad on ?

80 mtr rotatable dipole and an inverted v dipole at the same height? I know one has the advantage of rotating, but I am speaking about performance.

Which antenna is better, the Force12 C-4XL or the Mosley Pro67b?

Can anybody help me with this amp it has 4 tubes (1 driving 3). 21js6 are the tubes that are presently in it. Who made it,what is the max wattage, what is the correct amount of drive? Is there a difference between 21js6 and 23js6. :?

Hello guys, we are recieving 50-60mph wind gust here in Nassau Bahamas while hurricane Wilma is pounding the state of Florida. All is well so far.

I would like to know how to wire a Turner+3 mic to a Zachary T radio. Can anyone help?

Hello guys, can I get some info on this tube amp. Max watts. tubes and how much drive it can take? Is there a web site?

Hello, I need some help with some 20lf6 tubes. Where can I find these tubes :?: