Real men use flashbulbs! See attachment at bottom of this email: O.
Winston Link.
On Saturday, March 6, 2021, 11:27:27 PM EST, `Richard Knoppow
<dickburk@xxxxxxxxxxxxx> wrote:
These very large flash lamps put out a perfectly enormous
amount of light. I am not sure about the Megaflash lamps but have
data on the old ones. They were meant to be used in studio
reflectors and are safe to trip with 125V although they will also
trip with 3 volts. These, and some small bulbs, are fused
internally so they can be fired with line voltage without danger
of creating shorts.
The guide numbers depend on the size of the reflector and the
shutter speed because the dwell time of the lamp is quite long.
For the largest lamps in a 12 inch studio reflector and shooting
open flash (open shutter, flash lamp, close shutter) and film
speed of about 100 ISO the GN may be 1000. The only source of
greater light is flash powder.
On 3/6/2021 3:49 PM, Laurence Cuffe (Redacted sender cuffe for
DMARC) wrote:
On 6 Mar 2021, at 23:41, Brian Smith (Redacted sender
"smithcbrian2" for DMARC) <dmarc-noreply@xxxxxxxxxxxxx
<mailto:dmarc-noreply@xxxxxxxxxxxxx>> wrote:
Thanks Laurence. Good thought. Actually, I'm not sure that I
have the right connector for it. I don't really need to get it
going. It's just that I have quite a few bulbs for it that
have been lying around for decades, and I relished the thought
of using them so I could then justify throwing them out.Emoji
I know the feeling, I’ve still got some bulbs from this company
http://www.meggaflash.com/ ;<http://www.meggaflash.com/>, Who
are, I think, the last remaining manufacturer of Flash bulbs,
and I’m looking for a project. These Guys are big, about the
size of a standard household light bulb, and as you can see
from the example shot on the website, can pump out enough light
for landscape photography!
Best
Laurence.
On Sunday, 7 March 2021, 12:31:09 pm NZDT, Laurence Cuffe
<dmarc-noreply@xxxxxxxxxxxxx
<mailto:dmarc-noreply@xxxxxxxxxxxxx>> wrote:
Possibly a capacitor, just to give the current more Oomph when
it discharges. The capacitor may be shot, but that should not
be to difficult to replace, if you are serious about getting
it going.
Best
Laurence Cuffe
On 6 Mar 2021, at 22:40, Brian Smith (Redacted sender
"smithcbrian2" for DMARC) <dmarc-noreply@xxxxxxxxxxxxx
<mailto:dmarc-noreply@xxxxxxxxxxxxx>> wrote:
Thanks Richard. That's very helpful. I notice that the
battery compartment is only about half the height of the unit
(top half), so what the bottom half contains is a mystery,
but could be a solenoid as you suggest. Regards - Brian
On Sunday, 7 March 2021, 11:11:19 am NZDT, `Richard Knoppow
<dickburk@xxxxxxxxxxxxx <mailto:dickburk@xxxxxxxxxxxxx>> wrote:
I couldn't find an instruction book for this but there may be
one out there. The minimum voltage for reliable firing of
smaller
flashbulbs is 3V. I suspect that this had some sort of high
voltage battery in it. Most of the old style flash guns had at
least two cells but they were made to fire solenoid type
synchronizers reliably as well as igniting the bulb.
I need to go out now but may do a more thorough search later.
On 3/6/2021 1:21 PM, Brian Smith (Redacted sender smithcbrian2
for DMARC) wrote:
Hi folks
I recently acquired this (see attached photograph) from a
deceased estate, complete with several unused bulbs.
Does anyone know what type of battery it requires, please?
It looks as if it would accommodate a 1.5v "C" cell, but I
don't know that would be enough to trigger it.
Thanks - Brian
--
Richard Knoppow
dickburk@xxxxxxxxxxxxx <mailto:dickburk@xxxxxxxxxxxxx>
WB6KBL
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