OK, I have got to reply. Most of the hams that build amplifiers for 11 meter operators and those that know little about RF are illegal CBers that have taken the relative easy exams and gotten ham tic
Don't people have 10 digits? 73 Bill wa4lav _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
I once ran 4x 6AG7's with 1200 volts on the plates in grounded grid. They required conditioning but it worked and got 200 or so watts put PEP with a couple of watts drive on 20 meters. The tubes were
I suspect it is a compact form of a traveling wave tube. They have developed cold cathodes for small amplifying devices over the past few years. Some use field ionization. They have even made, by usi
I am looking for the data sheet for the VT-158 Zahl radar tube. This tube was made of four 100t tubes in a push-pull oscillator with hair pin resonators all in a very large glass envelope. I have one
How long has RS-232? been around. Many times longer than USB, Fire Wire, Bluetooth, IR, etc will. However they all have adapters to RS-232. I have run into the same problem with a low cost DDS signal
If you can afford to buy the amp you can afford a converter. USB is being replaced by Fire Wire. It wont be long till computers will not have USB ports or Fire Wire. These newer standards come and go
I have been on vacation and just got back and saw this thread starting with"Question". OK, you apply HV to a tube and it arcs a couple of times and then it is OK. Does that mean that you have remove
I was looking at one of my sources for cheap parts ( I should say inexpensive) and found this. Obviously not for a 19" rack. I don't know how many they have, it may only be one. http://www.alltronics
The minimum size wire specified in the "National Electrical Code" is chosen for voltage drop, and to make it easy for the electricians to make the right choice, in most cases, and not for temperature
Speaking of photos with the cover off. I have taken some photos like these before and I am amazed that up close that my digital camera still works. I expect that some don't work in intense RF fields.
NO WWW just http://bama.sbc.edu/ 73 Bill wa4lav _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
If a tube is convection, conduction, radiation, liquid or vapor phase cooled has to do with how heat ,produced by the kinetic energy from colliding electrons, is removed from the anode. From there it
Notice the last sentence "shipping will be via pelican and no tracking number will be available. " It is a joke. \ 73 Bill wa4lav _______________________________________________ Amps mailing list Amp
You can't broadband it but you can bandswitch it. 73 bill wa4lav Has anyone had any experience broadbanding a HFS 10000D RF amplifier? This is an RF sputtering RF amplifier that operates at 13.56 Mhz
Better yet, if the two tones are only a hundred Hertz or so apart, you can take the audio output of the SSB receiver and put it into the sound card of your computer and do an FFT. You can use a numbe
In theory and practice. This is how most "DSP IF" receivers work. The last IF is 10 or 12kHz from a product detector "mixer" and then to a DSP board which in this case is a PC. Naturally you can't al
Just looked at the article. Seems to be what I suggested earlier. Low mu triode in grounded grid. The advantage of a 4CX tube with control grid connected to the cathode requires no bias voltage and i
It just occurred to me that if you shunted the input of the amplifier with a capacitance who's reactance is say 1/5 of the input resistance the auto tuner will try to match it and thus you will get a