The AM Forum

This is a very well made amp with a pair of 3-500s...It is capable of operating on 6 fixed freqs between 1.5 to 30 mhz...It has tuned input and tuned output for each frequency. and has a motor driven bandswitch that is activated by the channel selector on the matching Northern Radio Transceiver.(which I also have).....The amp has a separate antenna connector for the output of each channel....So you can use up to six antennas for all the different freqs.....I am the only Ham operator in Naknek and when ever an old radio surfaces, I usually get a call.. This amp was stored in a cargo container in one of the boatyards here for (I would guess) 20 years. The property sold and the container got opened and I got the amp...It has some corrosion and the transformers need to be removed and baked.  The tubes are Eimac and the lettering on them is bright red..Some of the solder joints look a little dull. I think it will be a fairly easy rebuild..  Just an interesting pc of commercial gear that I thought some of you might like to see.....Was probably used by the Alaska State troopers in the 70's...

more pics..

Steve,
We have started to warm up 160 meters for you.  It should be in fine shape when you return. 
woc

Well there's not a lot of reasons for rebuilding that when you could send it to me ;D ;D That's a nice find  ;D ;D ;D ;D ;D

Neat. Somewhat similar to the CAI amp I have.

While you are in Naknek I am in Spokane finding all of the goodies right in your back yard!!
I remember when I was in Hoonah back in the 60's--they had an old Northern AM transmitter at the cannery. I think it ran one or two 813's. I would still like to find one. I did get an HRO Jr with a Northern label that came out of one of the canneries. It came with a chart listing frequencies for a bunch of canneries that were ghosts even in the 60's
I will come see the amp on my next trip to the civilized part of WA!
Skip
K7YOO

 I ran into one of those amps on a commercial fishing boat I worked on In the late 70's/early 80's. I was there to fix the radio (Northern radio SSB rig) that was driving it. when I got the radio fixed I fired it all up and had no trouble at all getting a radio check from KMI on 13 MC/s and I was in New York Harbor. does anybody know what ever happened to Northern Radio? they made some really nice general coverage marine/commercial stuff.

I have a Northern  11 channel transceiver that came from the Old Peter Pan Cannery in Naknek...It is in a 3 ft rack and has 3-6146s in the final modulated by a pair of 6146s...866 rectifiers.....The winterman at the cannery was still using the BC band portion of the receiver to listen to the only AM station we can get here in the daytime..KDLG a NPR station out of Dillingham Alaska.  I traded him an AM BC receiver for the Northern transceiver... That is at the Tum Tum shack...I also have a 100 watt Northern solid state transceiver that I got from the Troopers that I suspect was used with this 3-500 amp.I don't know what happened to Northern Radio company...I used to see their equipment still being used on ships in the 80's and into the 90's but not so much any more.