[Amps] Tips For Winding a Plate Choke

[Jim Thomson]

##  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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