[Drake] R4B

[Al Parker]

hi Ron,
I'd be glad to email the manual to you.  Sounds like you need alignment for
the PB problem, and maybe de-oxit on switch contacts will help some of the
others.  Nothing sounds like a bad tube.  If it's not humming, electrolytics
are OK.  Rarely any other cap problems.
> 12.6 = 1.5-2.0
> 21.6 = 10.0-10.5
> 28.6 = 17.5-18.0
> 27.1 = 16.0-16.5
> 35.1 = 24.0-24.5
73,
Al, W8UT
New Bern, NC
BoatAnchors appreciated here
http://www.thecompendium.net/radio/
http://www.hammarlund.info


----- Original Message -----
> Hi all, I just picked up a very nice R4B. It needs a little work. Since
I'm
> in the process of moving, my HamManual CD with the R4B operation manual is
> packed (along with all my tools, etc). I can't seem to get the complete
> version of the manual from BAMA.......
> One I get settled, I will completely go through the radio. Kind of like a
> fish on land right now    :>(
>
> Here's what I found so far:
> 1. 160 M dead  hmmm, I forget about this part
> 2.  20 M dead   crystal is there
> 3. radio recieves LSB fine but USB is not understandable, no matter where
the
> PBT is placed. This exact same thing happed to my 75A-4 after recapping,
it
> was easily fixed during alignment.
>
> The following crystals were installed in the accessory position. Can
anyone
> with the chart in the manual determing their frequency?
>
> 12.6
> 21.6
> 28.6
> 27.1
> 35.1
>
> I could have a bad tube, no way of telling right now. Any other 'things'
to
> be aware of?
> Any suspect caps?
>
> thanks!
>
> ron
>
> N4UE
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