Collins 75A4 Questions

[John M Iverson]

I know that this will generate a lot of flak, but here goes.
After many experimrnts, the best panel cleaner is the old 409.  spray it
on and wipe it right off,don't let it set for more than 2 minutes.  will
make your paper towels real brown if a smoker had the rig.  BTW, I have
been using this stuff for years with no problems.
as with any cleaner use with caution and try on a hidden surface first.
        73    jack
Jack Iverson    K0EWU    jackiv at juno.com
ARRL,  IEEE LM,  RCA, AMI, ARCI, QCWA,CCA

On Thu, 24 Jun 1999 17:03:36 -0500 "Freeberg, Scott (STP)"
<scott.freeberg at GUIDANT.COM> writes:
>Hi Bill,
>
>Congrats on your new 75A4 find.
>
>On the front panel being "grungy".  The grunge could be due to dirt,
>wear,
>or nicotine.  If its dirt, the detergent soap should do a nice job.
>Liquid
>detergent soap won't take nicotine off, so if it doesn't clean up very
>well,
>be suspicious of nicotine.  My 75A4 was loaded with nicotine and it
>took a
>while to get thorough it down to the paint.  It came to me looking
>"tired"
>and had a worn look to it.  After cleaning the nicotine off, the real
>colors
>and texture came out (not off).  I used GOJO WHITE (not the pumice
>version)
>and a tooth brush, and lots of rags.  Worked great.
>
>73,  Scott WA9WFA in Saint Paul Minn
>
>> -----Original Message-----
>> From: Bill Neubauer [SMTP:st7451sw at MEDIAONE.NET]
>> Sent: Thursday, June 24, 1999 4:27 PM
>> To:   BOATANCHORS at LISTSERV.TEMPE.GOV
>> Subject:      Collins 75A4 Questions
>>
>> Today, I picked up an early series 75A4 receiver that is a candidate
>for
>> restoration and reuse.  However, there are a few questions posed to
>the
>> BA membership:
>>
>>     - Need a dial for the PTO.  The original dial has 25% of the
>skirt
>> broken off-  any available or a source- does not have to be exact
>nor a
>> vernier unit..
>>
>>     - The unit has a 3.1 mech. filter which will be O.K.. for AM use
>but
>> would like a SSB (2.1 or 1.5) filter and a CW filter (500 Hz).  Can
>any
>> Fair Radio Sales filters be "adapted" for plug in use?  Any extra
>> filters out there at a reasonable cost?
>>
>>     - The front panel is "grungy" and I will use a liquid detergent
>soap
>> (Dial) and a soft cloth to clean.  Some of the white silk screened
>> letters looks a bit "weak" so I don't want to cause any more
>problems.
>>
>> Thanks to all for many answers to my earlier postings.   Bill//KC4ZZ
>>
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