[ARC5] Parts needed for ARC-5/274-N - splines...

[AKLDGUY .]

Thank you J. Forster and Mike Hanz.

On second thoughts, the fitting I bought was more like the type that on
older cars connected the vacuum pipe to the distributor for spark
advance/retard. The fuel connection to the carburettor that I mentioned was
an internal fit into the carburettor body, as I recall from cars I worked
on at the time.

73 de Neil ZL1ANM


On Tue, May 27, 2014 at 10:47 AM, J. Forster <jfor at quikus.com> wrote:

> A plumber friend once told me gas threads were purposely not tapered, so
> you don't get leaks at the thread root by cutting it too deep.
>
> They were sealed with a white lead & linseed oil paste, as I remember. Gas
> distribution was all very low pressure, <12" WC I think.
>
> -John
>
> ==================
>
>
>
> > On 5/26/2014 5:59 PM, J. Forster wrote:
> >> Mike, is the outer thread the same as is used on studio mike stands?
> >
> > Thread count, probably.  The vintage mic stands, and the majority of ham
> > radio mics of that era, used Switchcraft 2501F connectors with a 5/8"
> > -27 thread.  I think there's an older designation, but I can't recall it
> > at the moment.
> >
> >> I ask
> >> because pipe threads are almost universally tapered, but electrical
> >> threads are not.
> >
> > Quite right.  Which makes me wonder how well the threads did for a
> > natural gas distribution system in the 1800s.  They must have used a lot
> > of tar or pitch....
> >
> >     73,
> >   - Mike
> >
> >
>
>
>