06-17-14 10:11 Holger Granholm wrote to Ed Vance about Re: Your First SSB XMTR   
      
    HG> @MSGID: <53A16C8D.608.amtradio@capcity2.synchro.net>   
    HG> In a message dated 06-13-14, Ed Vance said to Holger Granholm:   
      
    HG> GM Ed,   
      
   Howdy Holger,   
      
    EV> I was thinking the other day about You saying that You built   
    EV> a SSB rig in the early 1950's.   
      
    HG> Correct, this is the SSB history of Finland and the Aland   
    HG> Islands:   
      
    HG> History Starts here ......   
      
    HG> I have been licensed since 1951 and operated CW, AM and NBFM   
    HG> prior to the SSB era.   
      
    HG> I started the SSB era as OH2OJ in Finland 1955 by building a   
    HG> phasing exciter similar to the Central Electronics 20A using   
    HG> the PS-1 phase shift unit. The outboard VFO came from a BC-458   
    HG> surplus transmitter. With this rig I came on the air on nov.   
    HG> 26th 1955 as first OH on SSB. In 1956 I built a Sideband Slicer   
    HG> . la Central Electronics as an addition to the Geloso G-207   
    HG> receiver and also a 150 W Power amplifier with a 4-65A tube.   
      
   The first time I saw a Eimac 4-65A tube I was aboard ship and saw   
   one in a trash can where the Electronics Technician had put it after   
   he replaced one in a piece of gear.   
      
   I looked at the Specs. and Feel in Love with the tube.   
   I've never owned one of my own, but I did buy a pair of   
   'pulled from service' 4-125A's at a Hamfest Flea Market years ago,   
   and never completed the project to use them in.   
   -snip-   
    HG> END of history ---------   
      
   Thank You.   
      
    EV> I'd think You used the Phasing circuit, as the Central Electronics   
    EV> 10A, 10B and 20A SSB Transmitters did.   
      
    HG> The first SSB exciter/transmiter used the CE Phase Shift   
    HG> Network and the second used the B&W 2Q4 Phase shift network.   
      
   I'm not familiar with the B&W part.   
   -snip-   
      
    EV> Which made me want to ask You, does Your License allow You to use   
    EV> One Kilowatt of Input Power at Your QTH in the Aland Islands?   
      
    HG> Well, I could update my license to 1 kW by just requesting it   
    HG> but I've never felt a need for it. 100 - 200 Wo has always been   
    HG> enough and pse remember; being in a rare country ups your   
    HG> signal several db.   
      
   The most power I've used on HF was 300W but I can't remember what tubes   
   were in the RF Amp, and I don't have it anymore.   
      
    EV> Oh, another thing came to mind as I was writing.   
    EV> My first experience using a Collins 32S-1 on CW made me think that   
    EV> That Collins XMTR was Illegal to operate on CW because it used an   
    EV> Audio Tone over the Supressed Carrier.   
      
    HG> That has never been illegal here. With a well suppressed   
    HG> carrier the only signal you hear is carrier.   
      
   To my way of thinking the 32S-1 was running MCW (Modulated CW) which   
   wasn't allowed on HF frequencies in 1961 IIRC.   
   To me it was Tone Modulated AM with a supressed carrier and probably   
   with a supressed sideband.   
      
   From looking over the Kenwood TS-520S schematic it looks like that is   
   how CW is created in my XCVR.   
      
   One Terminal from the Key Jack goes to the "AF UNIT" pc board and then   
   on towards the "RF UNIT" pc board.   
      
   ... I want to be a procrastinator, but I keep putting it off.   
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