Dave, you should listen with headphones on the Paragon while you transmit
into a dummy load on the Corsair and speak into the microphone. That will
quickly give you a good idea of what your tx audio sounds like.
Barry N1EU
On Wed, Mar 27, 2013 at 7:34 PM, <nf4r@comcast.net> wrote:
>
>
> Thanks to Phil,Barry,Bob and all others that have been helping with the
> audio problem on corsair ll. I changed the resistor to 100k,th en 220k
> .After each change the ALC light flickered
>
> with less drive,but audio had no change. Recieved card from station that
> made me aware of problem. In the remarks h e said it also was distorted.
> What a can of worms. Am going to set it on the shelf for a week then get
> back to it. Maby the headache will subside. For now I'll use my paragon
> and be thankful I have it. Thanks to everyone this has been a good learning
> experence.
>
> de nf4r Dave Hope this goes to the right place.
>
> ----- Original Message -----
>
>
> From: "Phil Chambley, Sr." <k4dpk@comcast.net>
> To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
> Sent: Monday, March 25, 2013 8:43:43 PM
> Subject: Re: [TenTec] Need help with corsair ii
>
> On 3/25/2013 8:22 PM, nf4r@comcast.net wrote:
> >
> > Looked at schematic for audio processor and u2a only has pin 1-4,however
> there is a 15k between pin 1 and 2 of u2a. The chip info in my manual
> shows a dot to indicate pin 1.
> >
> > 1> 8 > is dot. Is this the right one?
> >
> > 2 7
> >
> > 3 6
> >
> > 4 5
> > de nf4r
> >
> >
> > ----- Original Message -----
> >
> >
> > From: "Phil Chambley, Sr." <k4dpk@comcast.net>
> > To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
> > Sent: Monday, March 25, 2013 1:35:58 PM
> > Subject: Re: [TenTec] Need help with corsair ii
> >
> > *I think R68, at 15k ohms, is holding the first mic amp gain down n the
> > Corsair.
> >
> > If I recall correctly, I have in the past changed this resistor to*
> > *around 220k-330k to bring the gain up. The Paragon has a 470k in that
> > position.
> > In the Corsair, that resistor is between pins 6 and 7 of U2A
> > *
> >> **
> > *Phil C. Sr.
> > k4dpk*
> > _______________________________________________
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> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> Dave
>
> I think so. You can be certain by checking if pin three goes to the mic
> input through a 1 uf capacitor and 106.8k of resistance.
>
> Ten Tec frequently showed one half of an IC being used when it was in
> fact the other half in the circuit.
>
> Phil C. Sr.
> k4dpk
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