Same time frame too so it probably was the same thing or close.
----- Original Message ----- 
From: "Butch Bussen" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, January 10, 2012 10:26 AM
Subject: Re: The Kenwood TR7950


> This sounds like a similar some 440s had.  The problem was the glue or
> wax would become conductive after a period of time.  I had one and had
> to send it off.  They had to remove parts, scrape off old wax and
> rebuild.
> 73
> Butch
> WA0VJR
> Node 3148
> Wallace, ks.
>
>
> On Tue, 10 Jan 2012, Dave Marthouse wrote:
>
>> I had a 3530 on 220 in the 90's.  The radio from an accessibility 
>> standpoint
>> was great.  The down side was that a good number of them developed vco
>> issues that caused noise in receive.  It must have been a mechanical 
>> issue
>> as I could tap a place toward the rear of the radio on the top cover and
>> aggravate the problem.  Friends who had the radios reported that after a
>> while with one mounted in a vehicle the problem developed in a good 
>> number
>> of the rigs.  As I recall a friend was able to solve the problem with a 
>> fix
>> for the vco.  If I remember correctly he had to open the radio, get at 
>> the
>> co and melt the wax that the components were mounted in then somehow
>> mechanically re-seat them and reset the protective wax.
>>
>> It was interesting to note that my radio which didn't see service in a
>> mobile environment developed the problem over a year or two of use.
>>
>>
>> Dave Marthouse N2AAM
>> [log in to unmask]
>>
>>