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Swan VX-2 VOX Unit Mod to replace relays with Solid State (PIN Diodes??)

Discussion in '"Boat Anchor" & Classic Equipment' started by W7JZE, Jan 11, 2014.

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  1. W7JZE

    W7JZE QRZ Lifetime Member #84

    I have "a few" (too many :) of these old Swan VX-2 VOX units, all in various stages of repair. Being 99.9% a CW guy with the Swan boatanchors I have, these old relay driven units get quite a workout as I turn the delay down and push the semi-QSK limit.

    I've killed a few (too many :) of them too.

    There is a Mod for these old Swan VOX unit where the relays are replaced with PIN diodes (?) to not only resurrect dead VX-2s (Maybe even VX-1s?) but after Modding, true QSK also becomes possible. I know this old VX-2 Mod exists... A friend of mine in AZ has one. Well I've searched this forum and used my best Google-Fu out in the wilds of the Intertubes, but I cannot find any schematic or discussion on this Mod.

    Can anyone please point me in the direction of this Mod?

    Thanks!
     
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