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Topic: Hunter (Bingoscope) 9.5 Projector

Paul Mason
Jedi Master Film Handler

Posts: 540
From: Aldershot, Hampshire, UK
Registered: Nov 2013

posted September 29, 2014 03:08 AM

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I couldn't resist buying a hand turned Hunter 9.5mm projector for £1 over the weekend. It dates from around 1940 and is basically a Bingoscope Mark III. It runs very smoothly but has no working lamp. It's mechanism is similar to a Pathescope Ace and is just one step up from a toy. Has anyone used one? Can you avoid scratching films in them? Thanks.

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Paul.

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Ken Finch
Jedi Master Film Handler

Posts: 543
From: Herne Bay, Kent. U.K.
Registered: Oct 2011

posted October 02, 2014 12:56 PM

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It is not as good as the ACE and is liable to damage films particularly if the take up spring belt tension is too strong or the claw/cam mechanism is worn. The lens used was also very cheap and not as good as the one in the ACE. Also check the gate and pressure pad for wear. I would not use it for any valuable or rare films!! Ken Finch.

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Maurice Leakey
Film God

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From: Bristol. United Kingdom
Registered: Oct 2007

posted October 02, 2014 02:57 PM

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My very first projector. Christmas 1946. Aged 12. £7.17.6. (Motor driven = £15.15.0.)
Many happy hours spent with it, although it did take some time to find a library who were willing to lend films for projecting on it.
My mother insisted that the resistance be placed on a cork mat as it got so hot.

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Maurice

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Paul Adsett
Film God

Posts: 5003
From: USA
Registered: Jun 2003

posted October 02, 2014 04:05 PM

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A very wise mother, Maurice. I well remember the dropping resistor for my Pathe Ace, which was housed in a separate black screened box (this was back in 1952 when my house in Wales was still on DC mains) glowed red when it was operating, and you could smell hot ceramic throughout the room! [Eek!]

[Eek!]

But that smell actually contributed greatly to the charm of running the little hand cranked Ace and I kind of miss it now when I run the Ace off the 12volt transformer.
Maybe I should market a fragrance strip called ' Pathe Ace Resistor" for 9.5mm users around the world! [Big Grin]

[Big Grin]

--------------------
The best of all worlds- 8mm, super 8mm, 9.5mm, and HD Digital Projection,
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Eumig S938 Stereo f1.0 Ektar
Panasonic PT-AE4000U digital pj

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Paul Mason
Jedi Master Film Handler

Posts: 540
From: Aldershot, Hampshire, UK
Registered: Nov 2013

posted October 03, 2014 04:06 AM

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Many thanks everyone for your interesting replies.

Ken, I think it's well used so I will take your advice. I will try drawing on some clear 9.5 film and try that. I will need a low power bulb to fit in the bakelite tube it came with but I have do have a 12V power supply I use with my Kodatoy.

Maurice, I don't know what age mine is actually, so mine could be post war. I do have the original box and resistance.

Paul, my wife comments on the smell from the 1000W lamp of my Bell & Howell so I tell her it's very nostalgic.

--------------------
Paul.

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Maurice Leakey
Film God

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From: Bristol. United Kingdom
Registered: Oct 2007

posted October 03, 2014 09:40 AM

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My original box was a sort of shiny cardboard, grey in colour. It had a division piece in the centre, the projector and spool arm were in one side, the other side contained the black resistance and the lead connected to the long lamp holder which slid into the projector.

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Maurice

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Paul Mason
Jedi Master Film Handler

Posts: 540
From: Aldershot, Hampshire, UK
Registered: Nov 2013

posted October 03, 2014 02:25 PM

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The box I received had collapsed so I had to stick it together along the folds. It was made like a shoe box with a deep slide-on lid. The bottom had a divider as you describe and was in brown cardboard. The lid was coloured a shiny black originally with a picture on one end of a film show with family watching a chimps tea party.

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Paul.

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Maurice Leakey
Film God

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From: Bristol. United Kingdom
Registered: Oct 2007

posted October 03, 2014 02:38 PM

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For members who do not know this projector, here is a pic. But where is its resistance unit?
http://classicvintagecameras.tumblr.com/post/67068923850/r-f-hunter-9-5mm-projector

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Maurice

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Paul Mason
Jedi Master Film Handler

Posts: 540
From: Aldershot, Hampshire, UK
Registered: Nov 2013

posted October 04, 2014 02:00 AM

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This looks the same as mine:
http://www.pathefilm.freeserve.co.uk/95gearast3.jpg
and an advert:
http://www.cinerdistan.co.uk/Pictures3/hmhtjul40001a.jpg
Also sold as Astor

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Paul.

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Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007

posted October 04, 2014 03:20 AM

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I quote Gerald McKee from his book The Home Cinema:-

"During the first year of the war, with the loss of foreign projector imports, the BINGOSCOPE went up-market. It was now handled by the well-known photographic distributor, R.F. Hunter, advertised in the movie magazines as the HUNTER 9.5mm projector. Its fore and aft design made it practical to add 300' arms without the awkwardness of the usual super attachments. It was also possible to accommodate a motor within its casing. In some respects it can be looked upon as a better overall design than the ACE, which with its clumsy super attachment and add-on motor, was never entirely satisfactory."

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Maurice

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Ken Finch
Jedi Master Film Handler

Posts: 543
From: Herne Bay, Kent. U.K.
Registered: Oct 2011

posted October 04, 2014 09:26 AM

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Cannot remember what the lamp holder looked like on this model or the voltage. However, many of the Bingoscopes used a torch bulb run off a battery!! If the mains ones used the same bulb run off a resistance, the power consumption of the resistance must have been large. no wonder they got hot!! May I suggest a conversion to 6volt 10watt halogen using a modern lighting transformer from B & Q etc. Ken Finch.

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Paul Mason
Jedi Master Film Handler

Posts: 540
From: Aldershot, Hampshire, UK
Registered: Nov 2013

posted October 05, 2014 06:43 AM

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The bulb holder is a long bakelite tube with a wire coming out the end to the resistance. There is only room for a torch bulb. Could be fitted with a modern 10W bulb easily enough.

--------------------
Paul.

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Paul Adsett
Film God

Posts: 5003
From: USA
Registered: Jun 2003

posted October 05, 2014 10:42 AM

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These old 9.5mm projectors, with their grossly inneficient dropping resistors pushing out hundreds of watts, were ideal for warming up the freezing cold British homes of the 1930's and 40's. [Big Grin]

[Big Grin]

--------------------
The best of all worlds- 8mm, super 8mm, 9.5mm, and HD Digital Projection,
Elmo GS1200 f1.0 2-blade
Eumig S938 Stereo f1.0 Ektar
Panasonic PT-AE4000U digital pj

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Paul Mason
Jedi Master Film Handler

Posts: 540
From: Aldershot, Hampshire, UK
Registered: Nov 2013

posted October 06, 2014 03:39 AM

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It's interesting to do the sums using Ohm's Law [Smile]

[Smile]

If the mains voltage is 230V (standard before 1947 and again after 1988 in the UK, many variations used to exist) and let us guess a 6 volts 6 watts bulb is used, then the dropping resistor and the bulb must be limited to 1 amp current.

Total resistance must be 230V divided by 1A equal to 230 ohms. Since the bulb has a resistance of 6 ohms the dropping resistor must be equal to 224 ohms. The dropping resistor dissipates current squared times resistance watts, that is 224 watts. It makes a nice little hand warmer.

A bigger lamp voltage reduces the resistor losses proportionately but a bigger lamp current increases the losses by the square of the current.

It makes you wonder why lead-acid batteries weren't used more but I suppose they were expensive and for re-charging we'd be back to dropping resistors and ac/dc converters.

--------------------
Paul.

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Ken Finch
Jedi Master Film Handler

Posts: 543
From: Herne Bay, Kent. U.K.
Registered: Oct 2011

posted October 09, 2014 03:55 AM

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In my boyhood days, many of my relatives lived in houses without electricity, i.e.gas lighting!! The radio sets were run off batteries and "Accumulators" which had to be taken to the local Iron mongers or radio shops to be re charged every week. I used to help my Dad when he converted some of our relatives houses to electricity. This was in the early post war period. Now we take it all for granted. How times have changed!! Ken Finch.

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