It's in the September 1981 issue of QST, page 16.
73, Barry N1EU
On Tue, Dec 14, 2010 at 3:01 PM, Barry N1EU <firstname.lastname@example.org> wrote:
> There was actually an article in QST way back when (early 80's?) about
> adding the capability to switch in 9Mhz cw xtal filter for the Triton. I
> don't have the exact reference and I'm surprised it's not on the Ten-Tec
> wiki. I'll search around and try to dig it up but maybe someone else out
> there knows.
> 73, Barry N1EU
> On Tue, Dec 14, 2010 at 2:53 PM, Marty Hartwell <email@example.com> wrote:
>> I have asked in the past if anyone has a 245 filter for the 540 Triton IV
>> and received no
>> answers. So I am wondering if anyone in the past has built one on Vector
>> board or
>> ugly construction and gotten it to work? I am going to RS and see what
>> be available
>> to try this, it doesn't look to complicated to me.
>> Marty Hartwell
>> TenTec mailing list
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