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Author Topic: Viking II to coaxial relay question  (Read 1746 times)
N3PDT
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Posts: 75




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« on: December 21, 2012, 07:47:41 PM »

Newer ham getting in to boat anchors, and running into a lot questions over the most simple things.

Well, I know I run the 115v from the 2 ceramic sockets on the back of the Viking II to the coaxial relay, but what does one use for the male plug in to the back of the transmitter?

Thanks




















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K8AXW
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Posts: 3739




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« Reply #1 on: December 21, 2012, 10:10:23 PM »

You DO have the manual for this transmitter, right?  If not, you need it..... bad! 

http://bama.edebris.com/manuals/johnson/viking2(2)/

This will take you to the .pdf download for the Viking II.

The rear connector is a SO-239 which accepts the standard coax PL-259 connector.  The output of the Viking II is capable of feeding a random wire or coax fed antenna from about 25 ohms to 600 ohms.

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N3PDT
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Posts: 75




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« Reply #2 on: December 22, 2012, 06:22:30 AM »

Have the manual.  I am not talking about the antenna connections. I'm talking about the the 115v pwr out sockets to the relay.
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KB4QAA
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Posts: 2332




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« Reply #3 on: December 22, 2012, 07:19:10 AM »

I can't find a photo on the web.  If it is blade type socket then an ordinary 2 prong electrical plug is used.  My Viking 2 has a porcelain socket with round contacts.  Use the base of a crystal; HC-6/U, I think.

Desolder the cover, remove the crystal. Drill a hole in the top of the cover and feed your wire in. Reinstall the cover.  Should look neat and be safe.

These crystals were used from the 50-s into the 80's in all sorts of uses including CB's and Scanners.  If you don't have any in your junk box, ask around.  Most hams who scavenge have drawers of them!

Example:
http://www.radiomuseum.org/r/military_crystalquartz_hc_6u.html
« Last Edit: December 22, 2012, 07:22:55 AM by KB4QAA » Logged
AC2EU
Member

Posts: 359


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« Reply #4 on: December 22, 2012, 08:14:25 AM »

Newer ham getting in to boat anchors, and running into a lot questions over the most simple things.

Well, I know I run the 115v from the 2 ceramic sockets on the back of the Viking II to the coaxial relay, but what does one use for the male plug in to the back of the transmitter?

Thanks

I pulled up the manual. I don't see any male jacks on the rear of the stock rig. Perhaps it was modified?
The schematic tells me that the stock unit has the following:
J1 mic
J2 key
J3 rf out
J4 vfo in
X12 (octal) appears to be for the the external vfo power.
All of the above should be female!




















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K8AXW
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Posts: 3739




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« Reply #5 on: December 22, 2012, 08:56:44 AM »

PDT:  Sorry for the misunderstanding. 
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N3PDT
Member

Posts: 75




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« Reply #6 on: December 22, 2012, 08:57:50 AM »

I can't find a photo on the web.  If it is blade type socket then an ordinary 2 prong electrical plug is used.  My Viking 2 has a porcelain socket with round contacts.  Use the base of a crystal; HC-6/U, I think.

Desolder the cover, remove the crystal. Drill a hole in the top of the cover and feed your wire in. Reinstall the cover.  Should look neat and be safe.

These crystals were used from the 50-s into the 80's in all sorts of uses including CB's and Scanners.  If you don't have any in your junk box, ask around. 

Thanks Bill. That's what I thought would work. This is my first real boat anchor. Have realized that although I understand them conceptually, I need help with the details. Have a couple of guys experienced in the old gear coming over to help next week before I actually get it on the air.

« Last Edit: December 22, 2012, 09:01:25 AM by N3PDT » Logged
N3PDT
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Posts: 75




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« Reply #7 on: December 22, 2012, 08:59:48 AM »

PDT:  Sorry for the misunderstanding. 

No problem. Appreciate the response.
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N8CMQ
Member

Posts: 353




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« Reply #8 on: December 26, 2012, 04:03:28 PM »

My Viking II had an octal socket for wiring between
the transmitter and receiver, as well as the T/R relay.
You can go to hamfests and find the plugs needed.
Go to the BAMA site for the manual for your Viking.
Depending on your receiver, you can switch the RX to
standby, or lower the AGC, so you can monitor your signal.
Or your receiver could have the T/R control, and you
have it control the transmitter.
I used the Hallicrafters SX-101 with my Viking II, and
I tried a couple of different setups because of the Viking
VFO I used.
That is the nice thing about the older rigs, plenty of options
to use when hooking them up.
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