[Johnson] More Ranger adventures

[Sherrill Watkins]

Jim: I suggest to read the February, 2001 issue of ELECTRIC RADIO MAGAZINE,
page 20, for a great article on the VFO Disaster problem in the Ranger. - 73-
Sherrill W. k4own. 

-----Original Message-----
From: Jim Brannigan [mailto:jbrannig at optonline.net] 
Sent: Thursday, August 19, 2004 8:23 AM
To: johnson at mailman.qth.net; n6kyr at netzero.net
Subject: Re: [Johnson] More Ranger adventures


Cal,
I'm also trying to resurrect a Ranger.
As I dig in I find more problems.  Besides the bad capacitors, cold solder
joints and questionable MODS, the VFO coil mounts were loose and the meter
shield was hammered into an oval. This is just a preliminary assesment.  The
WX is too nice for full time work on the Ranger.  As the WX changes to fall I
will start to really take it apart.

Has anyone tried the Plastic polish from Antique Radio to fix scratches on
the dial?

Jim

> All:
> Decided to pull apart the VFO yesterday. Didn't see any physical 
> problems. The 18 kohm resistor is in good shape but under the 
> advisement of some, I have chosen to excise that unit and opt for an 
> external-to-the-VFO mount
of a
> 20kohm 5 watt unit. Additionally, I did test the 6AU6 and 0A2 tubes. 
> The
VR
> tube tested fine (according to my TV-7A/U t.t.). But the 6AU6 was a 
> very
dead
> number. Nary a peep on the test meter of the t.t. I had preemptively
ordered
> an extra 6AU6 and OA2 a few days before from Antique E.S. I also 
> ordered a handful of .005 uF ceramic discs to replace some of the 
> questionable
looking
> items. I also have a spare panel and cabinet ready to ship off to PNT 
> for
his
> silk screening/refinishing magic.
>
> Other than that, I'm still not clear what was causing the arcing of 
> the
6AX5
> rectifier tube. I will continue doing various cap replacements and 
> doing
the
> chart resistance checks in accordance with the manual. If everything 
> works out, I hope to have a station set up sometime in 
> September/October. Cal, N6KYR.

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