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FA: 1 KW Homebrew Amplifier
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#2
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FA: 1 KW Homebrew Amplifier
On Tue, 04 Sep 2007 18:10:23 -0400, WZ1U wrote:
http://cgi.ebay.com/ws/eBayISAPI.dll...MESE:IT&ih=003 Nice looking strip line, 2-meter amp. Roger (K8RI) |
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FA: 1 KW Homebrew Amplifier
Nice looking strip line, 2-meter amp. Roger (K8RI) Actually, a very nicely built 6 and 2 meter amplifier. W4ZCB |
#4
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FA: 1 KW Homebrew Amplifier
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#5
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FA: 1 KW Homebrew Amplifier
"Don Bowey" wrote in message ... On 9/6/07 12:51 AM, in article , "Roger (K8RI)" wrote: On Tue, 04 Sep 2007 18:10:23 -0400, WZ1U wrote: http://cgi.ebay.com/ws/eBayISAPI.dll...983&ssPa geNa me=STRK:MESE:IT&ih=003 Nice looking strip line, 2-meter amp. I don't see any strip line. Best I'd give it is "nice front panel." Well, you look at the copper strap connecting the 6 meter tank to the tubes. Those.are called "strip lines" and are what resonates the tank on 2 meters. W4ZCB |
#6
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FA: 1 KW Homebrew Amplifier
On Thu, 06 Sep 2007 14:13:48 GMT, "Harold E. Johnson"
wrote: "Don Bowey" wrote in message ... On 9/6/07 12:51 AM, in article , "Roger (K8RI)" wrote: On Tue, 04 Sep 2007 18:10:23 -0400, WZ1U wrote: http://cgi.ebay.com/ws/eBayISAPI.dll...983&ssPa geNa me=STRK:MESE:IT&ih=003 Nice looking strip line, 2-meter amp. I don't see any strip line. Best I'd give it is "nice front panel." Well, you look at the copper strap connecting the 6 meter tank to the tubes. Those.are called "strip lines" and are what resonates the tank on 2 meters. Now to replace those 4CX250s with 3CX800s or a pair of 4CX*** in that range :-)). I'm using a single 3CX800 on 2-meters. It's just the thing for WAR (Worked all Repeaters) :-)) and no in case anyone took me serious, it's for SSB and CW although I keep telling the locals it's for packet. Roger (K8RI) W4ZCB |
#7
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FA: 1 KW Homebrew Amplifier
On 9/6/07 7:13 AM, in article wWTDi.71017$Xa3.20125@attbi_s22, "Harold E.
Johnson" wrote: "Don Bowey" wrote in message ... On 9/6/07 12:51 AM, in article , "Roger (K8RI)" wrote: On Tue, 04 Sep 2007 18:10:23 -0400, WZ1U wrote: http://cgi.ebay.com/ws/eBayISAPI.dll...78983&ssPa ge Na me=STRK:MESE:IT&ih=003 Nice looking strip line, 2-meter amp. I don't see any strip line. Best I'd give it is "nice front panel." Well, you look at the copper strap connecting the 6 meter tank to the tubes. Those.are called "strip lines" and are what resonates the tank on 2 meters. W4ZCB I see the tuned lines, but they are not strip lines. See http://en.wikipedia.org/wiki/Stripline Or an ARRL Handbook, or........ |
#8
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FA: 1 KW Homebrew Amplifier
Harold E. Johnson wrote:
"Don Bowey" wrote in message ... On 9/6/07 12:51 AM, in article , "Roger (K8RI)" wrote: On Tue, 04 Sep 2007 18:10:23 -0400, WZ1U wrote: http://cgi.ebay.com/ws/eBayISAPI.dll...983&ssPa geNa me=STRK:MESE:IT&ih=003 Nice looking strip line, 2-meter amp. I don't see any strip line. Best I'd give it is "nice front panel." Well, you look at the copper strap connecting the 6 meter tank to the tubes. Those.are called "strip lines" and are what resonates the tank on 2 meters. Nah! Those are simply hi-Q, low inductance, inductors that happen to be made of copper strapping. Strip line is a transmission line that is made by putting a strip of metal between two ground planes. It's impedance is determined by the width of the strip, the spacing between the ground planes, and the dielectric constant of the material between the ground planes. Strip line used to be used quite a bit on microwave circuits that were built on printed circuit boards. It was replaced by the simpler to make micro-strip line, which is a strip of metal(copper) on one side of a board that has a ground plane on the other. -Chuck |
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