[NLRS] FT290RII troubles

[Zack Widup]

Hi Dave,

I think when I first started having the problem somene thought it
might be the crystal filter in the IF filtering circuit. I believe I
was told they use some kind of foam rubber in the filter and it
deteriorates.

I could probably replace that myself if I could get one. Anyone know
where to get Yaesu parts?

73, Zack W9SZ

On Thu, Sep 11, 2008 at 3:25 PM, David DeVos <kf8ql at yahoo.com> wrote:
> Zack - Had similar trouble with a 290 I had, and it turned out that a crystal in the IF filtering circuit had gone bad, and the IF was being shifted all the time.  I sent it to a guy in California named John Klewer N6AX, and he fixed it for me.  He also did some work on my 736R that turned out very well.
> YMMV,
>
>  Dave KF8QL/R
> http://www.davedevos.com
> http://kf8ql.homestead.com
>
>
>
> ----- Original Message ----
> From: "Chris Cox, N0UK" <chrisc at BritishCarAndDriver.Com>
> To: Zack Widup <w9sz.zack at gmail.com>
> Cc: NLRS at mailman.qth.net
> Sent: Thursday, September 11, 2008 11:06:48 AM
> Subject: Re: [NLRS] FT290RII troubles
>
>
>
> PA Bias still working?  If that is missing, that would cause severe
> distortion on SSB but haveno distorting  effect on FM or CW signal
> quality.
>
> 73  Chris Cox, N0UK  email: chrisc at chris.org or chrisc at BritishCarAndDriver.Com
>                                               or chris at SotaMINIs.Com
>   Home Page: http://WWW.BritishCarAndDriver.Com  http://www.pingjockey.net
>
>   Don't Believe Everything You Think.
>
> On Thu, 11 Sep 2008, Zack Widup wrote:
>
>>
>>
>> Just curious if anyone has any suggestions for this rig which I use as
>> a microwave IF.
>>
>> I started getting reports of very mushy/distorted voice on SSB a
>> couple years ago. People tell me it's almost unintelligible.  I've
>> done some tests with a couple other stations and it seems to be there
>> no matter what power level I'm running, with or without the amp
>> module.
>>
>> On FM the voice is fine. I'm told FM sounds great.
>>
>> CW is also fine. Power levels out are as expected in all modes.
>>
>> Any ideas where to look to cure this?
>>
>> 73, Zack W9SZ
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