[sdiy] Phasing circuit

[Magnus Danielson]

From: patchell <patchell at silcom.com>
Subject: Re: [sdiy] Phasing circuit
Date: Thu, 24 Apr 2003 15:36:02 -0700

>     Now you are asking a really hard question...well, not too hard...of the
> 11 notebooks that have EN in them, fortunately, I have only skimmed through
> 3 of them....so hold on, while I look through the most probable
> notebook....
> 
> Found it...that didn't take too long...did it?

No, just a single line... and this machine can scroll fairly quick over it, so
no worries!

>     EN #83 page 15 shows a circuit using two six stage phase shifters to
> give the 90 degree shift.
> 
>     They also show the pole locations for the stages:
> 
>     Side A:
>         5.41Hz
>         41.1Hz
>     167Hz
>     671Hz
>     2694Hz
>     11977Hz
> 
>     Side B:
>     18.8Hz
>     83.5Hz
>     355Hz
>     1344Hz
>     5472Hz
>     41552Hz
> 
>     Hopefully I didn't get any typos in there.

Does it explain in any way how those numbers where calculated or generated?
Is there any references to other articles?

(actually, when I asked about references I really meant, what does that EN
reference, but I agree knowing which EN is also good)

>     The article for the frequency shifter starts on page 5 of EN #83
> pretty cool article.

Me and EN#83 is dislocated in space and/or time.

Beam me up Jim! ;O)

Cheers,
Magnus