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 Post subject: Re: Panasonic RF-2200 project...
PostPosted: Feb Mon 12, 2018 3:55 am 
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Location: Oakland Township, Michigan
Very cool there John! I never had a 2200, but I had a 2800 and a 3100 that I still have. Bought it new. I fired it up a couple of months ago and while all the controls seem to work fine with no scratchiness, it has a lot more "birdies" than I remember. Maybe I'll get around to figuring it out before I pass on to the great beyond!

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 Post subject: Re: Panasonic RF-2200 project...
PostPosted: Feb Mon 12, 2018 2:24 pm 
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Joined: May Tue 05, 2009 10:21 pm
Posts: 278
Location: West Windsor, NJ 08540
Hi John,

Great find, it looks like its in pretty good condition. My father purchased one new many years ago and used it so much he worn out the tuning cap. I tried readjusting the plates and the bearing tension but was unsuccessful in stopping the plates from shorting out in certain areas. Let me know if see any junker RF-2200 for sale.

Good luck with your project.

Frank


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 Post subject: Re: Panasonic RF-2200 project...
PostPosted: Feb Mon 12, 2018 2:54 pm 
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Joined: Aug Wed 26, 2009 1:50 am
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Location: Mount Pleasant UT 84647 (from Coventry, UK)
Matt, that is a good looking radio. How does it compare with the 2200, feature-wise?


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 Post subject: Re: Panasonic RF-2200 project...
PostPosted: Feb Tue 13, 2018 12:22 am 
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Feature-wise they're pretty much the same. The RF-3100 has a DRO and breaks SW down into 29 distinct 1 MHz band segments extending from 1 to 30 MHz. But the RF-2200 has a rotatable MW antenna which helps a lot when chasing MW DX or for just listening to MW for that matter.

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 Post subject: Re: Panasonic RF-2200 project...
PostPosted: Feb Tue 13, 2018 2:24 am 
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Location: Utica, NY 13502 (USA)
The Digital ReadOut on the 3100 is a great convenience. Shotwave performance is much better with my 3100 than with my 2200, FM performance is nearly equal but the AM band, while adequate, is not nearly as good as it is on my 2200. The RF-3100 has a completely different "feel" to it compared with the 2200. I like both radios.

Dave


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 Post subject: Re: Panasonic RF-2200 project...
PostPosted: Feb Tue 13, 2018 2:30 am 
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Joined: Oct Mon 26, 2009 10:02 pm
Posts: 5135
Location: Indianapolis, IN
Hey Matt---have you looked on-line to see if anyone has compared the 3100 with the 2200 for BCB performance ? (Just noticed that Dave posted as I was ready to submit---he answered the question !)

Frank---did you try to clean between plates with a very thin piece of stiff, thin plastic ? As close as they are, it wouldn't take much to cause a short...

Have noticed after listening and tuning across BCB that this set doesn't seem quite as sensitive as it was prior to disassembly and the sound is "muddier"---sure hope I didn't cause damage blowing it out with compressed air after cleaning ! Not too happy considering that possibility...

John


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 Post subject: Re: Panasonic RF-2200 project...
PostPosted: Feb Tue 13, 2018 4:15 am 
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Joined: May Tue 05, 2009 10:21 pm
Posts: 278
Location: West Windsor, NJ 08540
Hi John,

Your right, the gap between the capacitor plates are extremely small which really makes it much harder to repair..

I hope that you find out why its not working as well as it was before being disassembled.

Frank


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 Post subject: Re: Panasonic RF-2200 project...
PostPosted: Feb Wed 14, 2018 3:46 am 
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Location: Oakland Township, Michigan
Hello John,

This thread revived my interest in my 3100. As it turned out the "birdies" I was hearing were due to my Bose wireless Bluetooth speaker in close proximity to it. The Bose was turned off and on battery power, but apparently the circuitry was still live. WTH is it doing while it's turned off and on battery power?

I agree with Dave's overall consensus. I never considered it to be a serious contender on MW due to it's large footprint and fixed ferrite antenna. Rotating the thing around to receive a signal is totally impractical. However it is still very good for SW reception! 36 years old and the thing is right-on frequency-wise on every band and extremely stable during SSB reception!

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 Post subject: Re: Panasonic RF-2200 project...
PostPosted: Feb Wed 14, 2018 6:28 am 
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Joined: Aug Fri 29, 2014 6:17 pm
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Matt Kroll wrote:
Very cool there John! I never had a 2200, but I had a 2800 and a 3100 that I still have. Bought it new. I fired it up a couple of months ago and while all the controls seem to work fine with no scratchiness, it has a lot more "birdies" than I remember. Maybe I'll get around to figuring it out before I pass on to the great beyond!

Image



If the voltage reg caps go dry, the thing might oscillate a mighty signal, with birds abounding.


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 Post subject: Re: Panasonic RF-2200 project...
PostPosted: Feb Thu 15, 2018 2:26 pm 
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Joined: Mar Tue 27, 2012 1:24 pm
Posts: 795
Matt Kroll wrote:
Hello John,

This thread revived my interest in my 3100. As it turned out the "birdies" I was hearing were due to my Bose wireless Bluetooth speaker in close proximity to it. The Bose was turned off and on battery power, but apparently the circuitry was still live. WTH is it doing while it's turned off and on battery power?

I agree with Dave's overall consensus. I never considered it to be a serious contender on MW due to it's large footprint and fixed ferrite antenna. Rotating the thing around to receive a signal is totally impractical. However it is still very good for SW reception! 36 years old and the thing is right-on frequency-wise on every band and extremely stable during SSB reception!


Maybe the Bose is still on because it has to be engaged to activate?

RE: Panasonic: could you put it on a lazy susan, and turn it that way?
Or, use an external loop, and just place the loop near the radio, and turn the loop, while the radio remains stationary. That works with my Superadios.


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 Post subject: Re: Panasonic RF-2200 project...
PostPosted: Feb Fri 16, 2018 8:08 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 586
Location: Westford, MA USA
Very cool! I have an RF-2200, which was given to me by a relative, who apparently found it at the local dump! :o It powers up and works fine on FM, but seems to be dead on MW and SW. I opened it up and cleaned the switches as best as I could, but it didn't help. Hopefully, it's something relatively simple.

I also have an RF-4900, which is like a really big brother to the RF-2200. Like the RF-3100, it employs digital tuning (well, more like a frequency counter for the analog tuning section, but it definitely helps). It's built like a tank, and works great. Here's a picture:
Image
-Adam

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 Post subject: Re: Panasonic RF-2200 project...
PostPosted: Feb Fri 16, 2018 2:45 pm 
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Joined: Aug Wed 26, 2009 1:50 am
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Location: Mount Pleasant UT 84647 (from Coventry, UK)
Adam, that is a good looking radio!


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 Post subject: Re: Panasonic RF-2200 project...
PostPosted: Feb Sat 17, 2018 6:12 am 
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Joined: Oct Mon 26, 2009 10:02 pm
Posts: 5135
Location: Indianapolis, IN
Yes---that's a great looking rig !

Panasonic sure has put out a lot of great products through the years !

John


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