Got it figured out. Had to disassemble it to see what is going on.
Solid tube in the ceramic coil form. Two smaller short shafts that
fit inside the internal tube. One side has a 1/4" rod pressed on, and that
is the end that moves the coil. Most of you already knew this - so never
mind.
Doug N4IJ
On Tue, Jan 3, 2023 at 12:00 PM <amps-request@contesting.com> wrote:
> Send Amps mailing list submissions to
> amps@contesting.com
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://lists.contesting.com/mailman/listinfo/amps
> or, via email, send a message with subject or body 'help' to
> amps-request@contesting.com
>
> You can reach the person managing the list at
> amps-owner@contesting.com
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Amps digest..."
>
>
> Today's Topics:
>
> 1. Roller inductor construction (N4IJ)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 2 Jan 2023 20:33:46 -0500
> From: N4IJ <dougn4ij@gmail.com>
> To: amps@contesting.com
> Subject: [Amps] Roller inductor construction
> Message-ID:
> <CA+Ht2hPsCm_AL_7ESYvxjdGpCY=DT=
> 1v_p5-82phTf4x1v8qeg@mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> I have an old Multronics roller inductor (229-203-001) That acts strangely
> best I can tell. I have to admit I have been a ham for a long time but
> never pais much attention to the construction of these,
>
> Is the coil shaft solid? On this one, it looks like there should be spring
> spacers on
> each end of the coil shaft, but one is missing? The ceramic form can shift
> along the shaft. I do have the smaller 19uh version (229-201.11) that I
> can see two
> springs - one on each side of the shaft. If I turn one end of the shaft,
> the coil turns
> but the other end of the shaft does not turn the coil. But is
> electrically shorted.
>
> Puzzling.
>
> Doug N4IJ
>
>
> ------------------------------
>
> Subject: Digest Footer
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
>
> ------------------------------
>
> End of Amps Digest, Vol 241, Issue 1
> ************************************
>
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|