[Boatanchors] Ranger1 w/ keyer? (part-2)

[Dave Sublette]

The Johnson TR switch was notorious for generating harmonics of the
operating frequency and resulted in many TVI complaints and pink slips from
the FCC.

Dave, K4TO

On Sat, Mar 9, 2024 at 3:10 PM <manualman at juno.com> wrote:

> Johnson offered a fantastic full break-in TR switch back in the good old
> days. It's model 250-39. Find them on Ebay, hamfests, etc.
> It's not even major rocket science to just build one from scratch. Actual
> TR switch circuit is just one tube and a few components.
> 6 db of gain across many of the HF bands.
> https://www.google.com/search?client=firefox-b-1-e&q=ef+johnson+tr+switch
>
> Pete, wa2cwa
>
> On Sat, 9 Mar 2024 10:47:13 -0800 corner five <corner5 at comcast.net>
> writes:
> > Part two of this is ... I am looking for ideas around the break-in
> > aspects.  As is (Ranger default) a CW QSO requires the OP to
> > physically
> > move the "operate" switch back and forth between "standby" and "cw"
> > for
> > each exchange.   Manual  break-in.  Simple and effective.
> >
> > However, I may be too cautions here but this seems like it might be
> > rough on this switch over the years.  Even if not, my question is
> > for
> > ideas of alternate ways to toggle between Tx and Rx.
> >
> > A few of my thoughts:
> > 1)  Run a foot pedal (or other physical switch) in parallel with
> > the
> > Ranger's Operate switch to do the physical switching.  I dont know
> > if
> > this is practical, as this switch is multi-pole, and appears to
> > switch a
> > number of things between these two positions.  Here I am not
> > totally clear.
> > 2)  Or some method to get me to semi-break-in.  Of course this
> > transmitter has no VOX that is often employed for this path.
> >
> > I'm not really wanting to get into making an elaborate / expensive
> > interface from scratch, but perhaps there are kits available?  Or
> > even a
> > small PIC type idea?
> >
> > In the end, I'm good with manual break-in if that's the way to go.
> > Semi
> > break-in would be a nice want.
> > thanks. c5.
>
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