[Amps] Tips For Winding a Plate Choke

[Carl]

Ive had no problems from squeezing the Ameritron choke into Alpha 76/78's 
etc which is about as tight as you can get.

Carl



----- Original Message ----- 
From: "Jim Thomson" <jim.thom at telus.net>
To: "Roger - W7TZ" <ai7rogerroger at gmail.com>; <amps at contesting.com>
Sent: Tuesday, October 08, 2019 5:08 PM
Subject: Re: [Amps] Tips For Winding a Plate Choke


> ##  They  can  be  mounted  either   vertically or  horizontally,  both 
> mounting schemes  work.
> Typ  vert  mounting  is  used.   Either way B+  has  to  be  fed  to the 
> base  of  the plate  choke.
> Also,  bypass  caps have  to  be  installed  at  base  of plate choke. 
> Also,  you  dont  want  to  mount
> a plate  choke parallel to a sidewall,  nor  the  chassis.   The  stray  C 
> will  screw  up  the  choke,
> and  shift  its  series resonances...  down  in  freq....  which  could 
> easily  cause catastrophic results.
> If  you  do mount  parallel  to sidewall or  chassis,  choke should be  at 
> least  3 x its  diameter away
> from  surrounding  metal.  Vert  mounting  solves  these issues.
>
> Jim  VE7RF
>
>
>
>
> From: Roger - W7TZ
> Sent: Monday, October 7, 2019 9:14 AM
> To: amps at contesting.com
> Cc: Jim Thomson ; MU 4CX250B
> Subject: Re: [Amps] Tips For Winding a Plate Choke
>
> Out of curiosity, is there a particular reason that HV chokes are 
> typically mounted vertically and not horizontally?
>
> 73, Roger
> W7TZ
> CN83ia
> Grid Busters
> w7tz.webs.com
>
>
> On Mon, Oct 7, 2019 at 8:57 AM MU 4CX250B <4cx250b at miamioh.edu> wrote:
>
>  Oops, I meant 1rps, not 1rpm!
>  Jim w8zr
>
>  Sent from my iPhone
>
>  > On Oct 7, 2019, at 9:50 AM, Jim Thomson <jim.thom at telus.net> wrote:
>  >
>  >
>  > ##  1  rpm  is  too  slow....it  will  take  forever to  wind.    30-60 
> rpm  works  good.
>  > A  slowed  down  drill  press  will  also work
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