[78-L] Fading sounds [fwd]
Royal Pemberton
ampex354 at gmail.com
Mon Mar 7 20:26:15 PST 2011
I heard one side of the 12" extended-play on one of the Nauction/Dismuke
specials....it was both sides of 2181-D although they'd dumped out of
'Lonesome road' just before Ted's spoken 'I'll be on the front door going
out'. A couple of seconds of silence, then the flip of the 10" record,
'Dinah'.
On Tue, Mar 8, 2011 at 4:16 AM, Steven C. Barr <stevenc at interlinks.net>wrote:
> From: "Jeff Lichtman" <jeff at swazoo.com>
> >>I can recall gasoline-powered "threshing machines" thar worked the
> >>same way; the governor only allowed a spark when the speed had
> >>deopped below a given level. Thus. their sound was "bang" "whoosh,
> >>whoosh, whoosh, whoosh, bang!"
> >>Steven C. Barr
> > The governor on this type of engine (called a "hit and miss" engine)
> > typically controls the exhaust valve, not the ignition. The intake
> > valve opens by cylinder vacuum, not with a cam. The governor holds
> > the exhaust valve open until the engine slows down to a set point, at
> > which point it allows the exhaust valve to close. The cylinder pulls
> > a vacuum on the next down stroke, which opens the intake valve and
> > lets a charge in. The spark plug fires every other revolution
> > regardless of whether there's a charge in the cylinder.
> >
> tHsnxes muchly fop the explanation! I saw A LOT of these old machines;
> Pontiac, Ill's.had a HUGE "Threshernen's Reunion every summer...which
> also included a large flea market (which is why I went every year!).
>
> Oddly enough, this IS 78-related...one summer I found (for 50 cents each!)
> A blue-wax 12" Columbia which is NOT in ADBD(!) and an "extended-play:" 12"
> Colimbia featuring Ted Lewis on one sids and Hate Smith on
> the other...!
>
> Steven C. Barr
>
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