[Boatanchors] National Select-o-Ject Question

[D C *Mac* Macdonald]

I think all of my receivers are 455 kHz I.F.
Just thinking about adding it to an HRO-60.
 
73 - Mac

________________________________
> From: N4ch at aol.com
> Date: Wed, 23 Feb 2011 14:42:27 -0500
> Subject: Re: [Boatanchors] National Select-o-Ject Question
> To: k2gkk at hotmail.com; boatanchors at mailman.qth.net
>
> The Select-o-Ject is basically an audio filter, and the Heath Q
> multipliers do their work at the radio's IF (all the Heath boxes are
> centered on or near 455 KHz, and if your receiver has a far-removed IF,
> like 50 KHz, you will have to do quite a bit of work to lower the RF
> circuitry's tuning. Functionally (by ear, anyway), they do the same
> thing, with the National being more "universal", in that its use is
> not dependent on the target receiver's IF.
>
> 73, Herman, N4CH.
>