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w2amr
09-29-2015, 04:17 AM
I just finished the restoration of my uncle's RCA Mark7 CB rig, vintage 1960. That's his QSL card in top. I heard stations from the west coast coming through yesterday afternoon.

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N8YX
09-29-2015, 07:39 AM
Nice job!

Is that the one for which you needed the IF transformer? Open up the case on that puppy and let's see some good old fashioned hollow state.

ETA:

Don't know why I want one but a set of Demcos would be neat.

http://www.qsl.net/kd4nue/demstak.htm

KG4CGC
09-29-2015, 08:30 AM
Good looking unit, George. You always do good work.

K4PIH
09-29-2015, 10:29 AM
Nice job George! I love it when an avid radio person restores a classic piece of gear, ham or CB, doesn't matter.

Please show us the hollow state inside. I love hollow state stuff!

w2amr
09-29-2015, 05:10 PM
Nice job!

Is that the one for which you needed the IF transformer? Open up the case on that puppy and let's see some good old fashioned hollow state.

ETA:

Don't know why I want one but a set of Demcos would be neat.

http://www.qsl.net/kd4nue/demstak.htm
Demcos are way cool. :yes: Back in the day when radios and cars had style.
The one with the IF problem came from e bay Fred. I drilled out the rivet that holds the mica wafers together in the bottom of the IF. Then I took them out, reassembled the can, put it back on the chassis, and soldered the wires back on. Then I took a guess at the value and tacked a 120 PF cap across each coil lead. It receives, but not very well. I just have to find the right value caps to replace the micas.
I'll get a shot of the inners of unks radio when I make some room on the bench.

w2amr
09-29-2015, 05:33 PM
This is one I restored a few years ago. I converted it to 10 meters and it has a rock for 29.0 . Unfortunately there isn't anybody on 10 AM to talk to, so it doesn't get much use.
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w2amr
09-30-2015, 03:30 AM
I love hollow state stuff! I can tell by your photo on QRZ Jack.:agree:

K4PIH
09-30-2015, 06:55 AM
Thanks! I first got interested in radio and particularly Amateur radio back in the late 50's early 60's. My Dad was a ham (tho original K4PIH) and my brother still is (K5EH) and I grew up around surplus military, Hallicrafters, National, Hammarlund, Heathkit radios. I clearly remember having a Hallicrafters SX-25 in my room with a long piece of wire thumb tacked along the ceiling. I watched Dad and big bro mod ARC-5's for 40 meters. I'm particularly fond of Swan gear.

Sorry for that little boring trip doen memory lane. Had a flashback!

N8XE
09-30-2015, 08:15 AM
Looks great!!!

N8YX
09-30-2015, 10:27 AM
This is one I restored a few years ago. I converted it to 10 meters and it has a rock for 29.0 . Unfortunately there isn't anybody on 10 AM to talk to, so it doesn't get much use.
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I'm QRV there quite a bit. Every time my TS-660 or one of the Paragon IIs is powered up, 29.0 AM (and 29.600 FM) is automatically scanned for signs of life. Those are the only rigs inline at the moment which are capable of 10M AM operation but I have a few more tucked away.

Problem between NJ and OH is...lack of propagation unless we get some sporadic E.

N8YX
09-30-2015, 10:36 AM
... I'm particularly fond of Swan gear...

Swans and Drakes belong in lakes!

Word.

Give me an Astro 102BX, Astro 150...TR7, R7 and TR5... though a late model set of 4-line twins are fun to play with.

w2amr
09-30-2015, 11:21 AM
I'm QRV there quite a bit. Every time my TS-660 or one of the Paragon IIs is powered up, 29.0 AM (and 29.600 FM) is automatically scanned for signs of life. Those are the only rigs inline at the moment which are capable of 10M AM operation but I have a few more tucked away.

Problem between NJ and OH is...lack of propagation unless we get some sporadic E.Yeah, too bad we aren't close enough for ground wave.

WTKX
09-30-2015, 04:39 PM
I enjoy the heck out of AM, even if I'm using a new fangled SDR. Recently, I've dropped down to 75 and 160 for a few AM QSOs here and there. Not running power, but it's working. Evenings on the low bands are getting much better. :)

K4PIH
09-30-2015, 10:49 PM
Swans and Drakes belong in lakes!

Word.

Give me an Astro 102BX, Astro 150...TR7, R7 and TR5... though a late model set of 4-line twins are fun to play with.

Tell which lake you're dumping them in, I could use the parts! ;)

w2amr
10-01-2015, 04:24 AM
I could have polished the top of the chassis, but I decided to leave some of the 50+ year old patina. Gives it character. :mrgreen:
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K4PIH
10-01-2015, 07:15 AM
Nice! Thanks. Have to say they do not build them like that anymore. There's that certain smell when tubes, caps, and transformers warm up.

N8YX
10-01-2015, 08:33 AM
Tell which lake you're dumping them in, I could use the parts! ;)

Tell me what you're after for any given project and if I have it (or know where to get it) the part is yours for shipping costs.

My BA source in the area has an almost infinite supply of stuff. Between the two of us we probably have whatever anyone needs to fix their toob equipment.

w2amr
10-01-2015, 11:56 AM
Tell me what you're after for any given project and if I have it (or know where to get it) the part is yours for shipping costs.

My BA source in the area has an almost infinite supply of stuff. Between the two of us we probably have whatever anyone needs to fix their toob equipment.OK, send me a 1650 kc IF with silver micas in the bottom.:snicker:

w2amr
10-01-2015, 12:00 PM
Found this HE20 which has what I need. Trouble is , he want's $25 just to ship it.
http://www.ebay.com/itm/vintage-Lafayette-HE-20-Tube-Cb-Base-Radio-and-SHURE-M175-Microphone-/291577160075?hash=item43e35a618b

K7SGJ
10-01-2015, 12:07 PM
$58.50 to ship to AZ. Bastid

N8YX
10-01-2015, 12:07 PM
OK, send me a 1650 kc IF with silver micas in the bottom.:snicker:

Tell me which values of SM you need. I'm guessing 82pF based on your previous comments regarding 120pF and the radio being somewhat deaf.

w2amr
10-01-2015, 04:02 PM
Tell me which values of SM you need. I'm guessing 82pF based on your previous comments regarding 120pF and the radio being somewhat deaf.Your guess is as good as mine Fred. I have a limited supply of them to try.

w2amr
10-01-2015, 04:03 PM
$58.50 to ship to AZ. BastidAnd, It looks like it's been buried in somebody's yard for 30 years.

w2amr
10-01-2015, 04:20 PM
Nice! Thanks. Have to say they do not build them like that anymore. There's that certain smell when tubes, caps, and transformers warm up.

Oh yeah.

w2amr
10-01-2015, 05:30 PM
Tell me which values of SM you need. I'm guessing 82pF based on your previous comments regarding 120pF and the radio being somewhat deaf.I keep going back and forth between the two threads.
Eddie had a great idea that might work.
https://forums.hamisland.net/showthread.php/29390-IF-can-wanted?p=633701&viewfull=1#post633701

w2amr
10-02-2015, 04:42 AM
Don't know why I want one but a set of Demcos would be neat.

http://www.qsl.net/kd4nue/demstak.htmhttp://www.ebay.com/itm/LOOK-Demco-Satellite-Deluxe-with-Custom-Built-VFO-/301756271195?hash=item4642134a5b

N8YX
10-02-2015, 06:01 AM
http://www.ebay.com/itm/LOOK-Demco-Satellite-Deluxe-with-Custom-Built-VFO-/301756271195?hash=item4642134a5b
Saw those. Going to keep an eye on the set and watch what the price does. The Super Satellite is the preferred one to have, though.

That DDS VFO idea is a thought ... it would make a nice addition to a 10M CB conversion project.

w2amr
10-02-2015, 03:41 PM
This has been very handy.Lots of good info like tube pin voltage and resistance.
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