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Old February 28th 08, 10:22 PM posted to rec.radio.shortwave
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Posts: 271
Default Drake R8 question

I checked the sensitivity of the R8 at the MW band edges vs the adjacent
ranges. No difference in sensitivity over the whole tuning range. 10uV RF
input gives S6 meter reading, indicating that there is no MW attenuator in
the non-European version. Good news.............not I don't have to tear
into it until I figure out the preamp enable mod for the LW/MW ranges.

Pete

"Pete KE9OA" wrote in message
. ..
I sure will. Probably won't get to it for a few days. Right now, I am
fighting the flu AND fixing that R7

Pete

"JoanD'arcRoast" wrote in message
. ..
In article , Pete KE9OA
wrote:

U bet you............I've got it apart right
now......................cleaning the contacts on the regulator board
got
the low end of the low band VCO working....................the high band
VCO
only works up at MHz. I am thinking, that with the high S/N, it looks
like
the owner of this radio sold the R7A face plate to somebody and
installed an
R7 faceplate on this radio before he moved it out.
I played a little bit with the R8...........now I see why everybody
likes it
so much. I think I will modify it so the preamp works on all ranges,


If you do this mod, would you post a how-to? I have an R8; I would like
to make the pre-amp work on LW NDBs.

thanks,
-j

that
is, after I remove that pesky MW attenuator. Nice receivers.

Pete

"dxAce" wrote in message
...


Pete KE9OA wrote:

Thanks Steve,

I am going to take a look at that R8 in a little while and see how it
works.
My friend is also bring over an R7 S/N 3400 range, with a PLL unlock
problem. Just what I always wanted to work on...........another one!

Keep those R7's running.







 
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