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<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">On 19 May 2018 at 20:15, jerrylofstead@bellsouth.net wrote:</span></font></div>
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<div align="left"><font face="Arial" color="#7f0000" size="2"><span style=" font-size:10pt">> AH HA. Ididnt realize that... I used that for several years. I also used screen mod. before i </span></font></div>
<div align="left"><font face="Arial" color="#7f0000" size="2"><span style=" font-size:10pt">> could afford a BC191 mod. transformer. Only used surplus eqpt for my early years.</span></font></div>
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<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">So have I, Jerry. :-)</span></font></div>
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</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">BTW, in my personal opinion, Controlled-Carrier AM has a lot to recommend it, although it
does have a fault or two.</span></font></div>
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<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">I'll list some of the reasons I think it is an excellent method.</span></font></div>
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<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">1) It requires no "heavy iron" to implement it. It requires as few as 2 tubes. The circuit is
actually very simple. I like "simple".</span></font></div>
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<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">2) Its output characteristics make it very suitable for driving almost any linear amp.</span></font></div>
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</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">3) If you as the user very carefully zero-beat an SSB station with your "carrier", that SSB
station seldom realizes you are on AM. Using VOX or some rapid TX/RX method, like a
foot-switch, makes this even more "friendly".</span></font></div>
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</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">4) The circuit takes up very little chassis space and can be incorporated into many simple
transmitters.</span></font></div>
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</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">5) It can be made to sound very good.</span></font></div>
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</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">As far as I'm concerned, the only real "fault" with it is that it isn't "efficient", but in our case,
using simple transmitters like the DX-35, 40, 60 and others, followed by a linear amp, this
makes any loss of efficiency in the modulated stage completely unimportant.</span></font></div>
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</span></font></div>
<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">FYI, many years ago, in Montana, I had a Globe King 500 transmitter, which I outfitted with
a foot-switch. I would routinely check into the "local" SSB net with it. I used the transmitter's
VFO as my "BFO", turning the receiver's BFO off, to zero-beat the SSB stations, tuning
them in with the VFO so they sounded natural before I keyed up. I would then turn the
reciever's BFO back on. </span></font></div>
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<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">I used the foot-switch to rapidly switch from TX to RX and back, so it sounded sort of like I
was using VOX.</span></font></div>
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<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">It was weeks before someone called me after the net and told me, "Ken, you have an awful
lot of carrier in there.", I replied, "Boy! I'd BETTER have!" and laughed.</span></font></div>
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<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">He then came back with, "You mean you're on AM?!?!?!". I just laughed again. No one else
ever bothered to ask me about that again. ;-)</span></font></div>
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<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">vy 73</span></font></div>
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<div align="left"><font face="Arial" size="2"><span style=" font-size:10pt">Ken W7EKB</span></font></div>
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