[ARC5] Synchronous vibrator electronic mod, antenna toroid, speaker matching

[AKLDGUY .]

> I've not seen one either, but it looks closely related to the WS 19, or
> more likely the lighter weight, lower power WS 22. The vibrator
> replacement looks like it'd fit one in the Canadian WS 19 Mk III.

Oh I've seen ZC1's and even had the opportunity to buy a nice one years ago,
but I was hooked on the ARC-5 in my teens and was never really interested in
the ZC1. The vibrator mod may be of interest to anyone with equipment that
uses a synchronous vibrator.

73 de Neil ZL1ANM


On Sat, Apr 5, 2014 at 1:15 PM, J. Forster <jfor at quikus.com> wrote:

> I've not seen one either, but it looks closely related to the WS 19, or
> more likely the lighter weight, lower power WS 22. The vibrator
> replacement looks like it'd fit one in the Canadian WS 19 Mk III.
>
> FWIW,
>
> -John
>
> ==================
>
>
>
> > The question of which WW2 radios were transceivers came up on another
> > thread, so I took a look at the New Zealand made ZC1 radio to see whether
> > it was a transceiver or not (although I live in NZ, I've never had any
> > experience with the ZC1).
> >
> > While googling, I found the following article:
> >
> > http://www.worldphaco.com/uploads/ZC1_MK2_POWER_SUPPLIES.pdf
> >
> > The article is primarily a report on the author's successful use of solid
> > state devices to construct a unit that plugs into the ZC1 vibrator socket
> > and fulfills the function of the vibrator.
> >
> > Also demonstrated are the construction of a 12:50 ohm toroid for feeding
> > the low impedance of the ZC1 into a conventional 50 ohm antenna, and the
> > construction of an auto-transformer to step down the ZC1 audio output to
> > 8,
> > 16, or 32 ohms.
> >
> > The article is complete with excellent photos and detailed analysis and
> is
> > highly recommended. Everyone will learn something from it.
> >
> > 73 de Neil ZL1ANM
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