[ARC5] Using SCR-274N

[Bill Cromwell]

On Thu, 2013-03-28 at 17:35 -0400, Geoff wrote:

> 
> A pair of surplus crystals and a few other small parts would help narrow the 
> bandpass on the wide open sets. It could all be done with a couple of tacked 
> in solder lug strips and easy to reverse. I havent looked at what is 
> actually available but it wouldnt hurt to look.
> 
> Slight regeneration of an IF stage would also narrow it a bit without that 
> extreme hollow sound. No parts required maybe, just a gimmick feedback cap 
> grid to plate.
> 
> A BC-454/455 that has already been bandspreaded could become a very nice CW 
> radio with minimal work. I believe Ken also mentioned that the 454 IF 
> transformers look possible to seperate the coils a bit.
> 
> Carl 
> 

Hi Carl,

I thought about that, too. I have built some xtal filters for receiver
projects. The xtals that I used are higher in the HF range. If I find
that xtals in the ranges of those IFs are not too hard to get I'll be
going there.

73,

Bill  KU8H