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Old January 17th 05, 12:01 AM
mike maghakian
 
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the 2800 and 2900 have more than the display as a difference. just look at
the schematics, it is quite obvious. I don't think many people ever check
that point out since most people repeat it.
I checked it out for myself and there ARE differences !!!!!





"starman" wrote in message
...
DeWayne wrote:

I just wondered as I remember when they sold new and I thought they
looked
worth trying but I never did. I think they were selling the Panasonic
RF-2900 new around then too.


The RF-2800 and 2900 were about ten years before the B65 and B60. The
latter two were real PLL designs, not analog with a frequency display
(counter) like the 2800/2900. The 2900 is identical to the 2800 except
it has a fluorescent display instead of red LED's on the 2800, which
saved battery power. The 2800 display only worked for AM/shortwave
tuning, not FM. The current Tecsun/Grundig S-350 is loosely based on the
RF-2800/2900 but it does not have dual conversion like the two
Panasonics did.
I've been trying to locate a National Panasonic DR-29. This version was
not sold in the US. It had a built-in preselector to reduce images and
overloading in strong signal areas like Europe.


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Old January 17th 05, 04:37 AM
 
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Oh, I know the feeling. When you are ready to pull the trigger the
only listings are closed!!
Good luck in the search..when you find one it will be worth it.

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Old January 18th 05, 05:41 AM
starman
 
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mike maghakian wrote:

the 2800 and 2900 have more than the display as a difference. just look at
the schematics, it is quite obvious. I don't think many people ever check
that point out since most people repeat it.
I checked it out for myself and there ARE differences !!!!!


The differences are mostly associated with the display circuitry. Did
you find any significant differences in the RF/IF areas of the
schematics?

"starman" wrote in message
...
DeWayne wrote:

I just wondered as I remember when they sold new and I thought they
looked
worth trying but I never did. I think they were selling the Panasonic
RF-2900 new around then too.


The RF-2800 and 2900 were about ten years before the B65 and B60. The
latter two were real PLL designs, not analog with a frequency display
(counter) like the 2800/2900. The 2900 is identical to the 2800 except
it has a fluorescent display instead of red LED's on the 2800, which
saved battery power. The 2800 display only worked for AM/shortwave
tuning, not FM. The current Tecsun/Grundig S-350 is loosely based on the
RF-2800/2900 but it does not have dual conversion like the two
Panasonics did.
I've been trying to locate a National Panasonic DR-29. This version was
not sold in the US. It had a built-in preselector to reduce images and
overloading in strong signal areas like Europe.



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