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 Post subject: Odd Swan conversion
PostPosted: Jun Wed 26, 2019 12:59 am 
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Joined: Jun Sun 19, 2011 2:31 pm
Posts: 6755
I have seen some of the old Heathkit single banders (HW-12, 22, 32) converted to tri band operation but this is the first Swan mono bander I have run across with that conversion. I don't know if someone used some of the Swan 240 parts or if a commercial firm made kits like they did for the Heathkit HW mono banders but this one started life as a Swan 120 and turned into a "Swan 12" :)

From a quick look it doesn't appear badly hacked up but I haven't dug deep into it yet. The final tube did survive even though it came out of its socket during shipment, at least the tube tester still thinks it is OK but I will see what it does later on once I have gone through the rig.

Rodger WQ9E


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 Post subject: Re: Odd Swan conversion
PostPosted: Jun Wed 26, 2019 5:44 am 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: Monterey California USA
In the back of mind I have a recollection that Swan itself offered that "upgrade" kit for a short time. Did you check the small ads in the back of 73 Magazine pre-1965?

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 Post subject: Re: Odd Swan conversion
PostPosted: Jun Wed 26, 2019 12:59 pm 
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Joined: Jun Sun 19, 2011 2:31 pm
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Thanks Geoff, I will take a look at 73.

Rodger WQ9E


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 Post subject: Re: Odd Swan conversion
PostPosted: Jun Thu 27, 2019 11:48 pm 
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Joined: Oct Sun 04, 2015 8:22 pm
Posts: 84
Location: Newton, MA 02465
There's an article entitled "Two Banding The Swan One Bander" in the July, 1963, issue of 73.
The author (W8DHZ) describes modifying the SW-175 such that it also covers 20 meters.

All of 73 Magazine is available https://archive.org and I stumbled across a convenient
search UI at https://mikeyancey.com/73-magazine-index/.

Aside from one other article describing how to convert the SW-120 to two meters, a search didn't
reveal a 3-bander conversion article.

Best -

Bruce K1FFX


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 Post subject: Re: Odd Swan conversion
PostPosted: Jun Fri 28, 2019 12:59 pm 
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Joined: Jun Sun 19, 2011 2:31 pm
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Thanks Bruce!

I have the complete run of 73 in PDF format but I hadn't run across the search engine which is very helpful!

Rodger WQ9E


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