8mm Forum: GOKO RM 8008

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Topic: GOKO RM 8008

Bill Proctor
Film Handler

Posts: 60
From: Mooresville, IN, USA
Registered: Apr 2018

posted December 30, 2018 08:56 AM

I have a GOKO RM 8008 that I bought on line from Italy. It is 240 Volts and the motor runs slow when plugged into 110-120 volt outlet.
Is there someone who services these machines that can change the voltage to 110-120 volts? The machine is immaculate and everything works except the FPS is much slower with the 240 volt setup.
Thanks in advance..
Bill

--------------------
US Army
Combat Motion Picture Photographer,
Vietnam, 1966-1967.
Trained at the US Army Pictorial Center, Astoria New York. 1965-1966, Which is now the Kaufman Astoria Motion Picture Studios.

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Mark Todd
Film God

Posts: 3846
From: UK
Registered: Aug 2003

posted December 31, 2018 06:11 PM

Hi Bill would something like this be good enough ?

Are you 120 where you are ?

https://www.ebay.com/itm/Norstar-Heavy-Duty-ST200-200-Watt-110-220-Volt-Voltage-Converter-110v-220v-240v/112997484966?hash=item1a4f2cc9a6:g:4mYAAOSwhZ9a~Han:rk:13:pf:0

200 watts should be enough, there are cheaper 100 watt ones too.

Even better if you can find if there is an easy tinker way to do it in the back etc.

Best Mark.

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Winbert Hutahaean
Film God

Posts: 5468
From: Nouméa, New Caledonia
Registered: Jun 2003

posted December 31, 2018 09:02 PM

Why don't you buy step down (voltage converter)? it is much easier and cheaper.

Remember that the electric cycles (Frequency) in Italy is 50hz while the USA is 60 hz. If you succeed to change the voltage, the frequency cycles remains the same. A frequency converter is indeed available but it is veeeeerry expensive.

I don't know how sensitive is editor to the frequency issue but some devices are really sensitive with it, resulting you cannot use it at all, such as TV (shows flicker), clock (runs slower), bulb (dimmer) etc.

What I knew a projector is sensitive to the freq so e.g a ST-1200 if we runs in different freq we need to move the belt to a smaller/bigger pulley which I don't think is available in a editor.

(There are two posts with the same topic. Moderator needs to delete one)

--------------------
Winbert

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Bill Proctor
Film Handler

Posts: 60
From: Mooresville, IN, USA
Registered: Apr 2018

posted January 01, 2019 10:40 AM

Mark Todd
Mark..
Will this converter increase the voltage from 110-120 to 240? if it does that might be a viable solution.

Winbert Hutchinson
Winbert..
This machine is 240Volts 50/60 hertz, so I am not sure the hertz is the problem.
And thanks for the input fellas..
Bill

--------------------
US Army
Combat Motion Picture Photographer,
Vietnam, 1966-1967.
Trained at the US Army Pictorial Center, Astoria New York. 1965-1966, Which is now the Kaufman Astoria Motion Picture Studios.

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Winbert Hutahaean
Film God

Posts: 5468
From: Nouméa, New Caledonia
Registered: Jun 2003

posted January 01, 2019 05:39 PM

quote:
Will this converter increase the voltage from 110-120 to 240?

Yes a step up will increase the output voltage from 110-120v to 240 volt. It is a cheap device. Less than $10 I guess.

quote:
This machine is 240Volts 50/60 hertz, so I am not sure the hertz is the problem.

I do remember now that GOKO RM series come with a speed adjustment placed on the back side. So this can be used to compensate if the motor runs slower/faster due to the freq issues. So yes you won't have a problem with it.

Good luck!

--------------------
Winbert

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Bill Proctor
Film Handler

Posts: 60
From: Mooresville, IN, USA
Registered: Apr 2018

posted January 04, 2019 01:39 PM

Thanks for the voltage converter suggestions..
Bought a Simran 500 watt voltage converter transformer and my GOKO RM 8008 works perfectly. So for an investment of around $36.00 I am up and running.
I have changed it over to a Halogen bulb which is much brighter and I plan on purchasing a good quality ground glass for this machine.
Bill

Here is a photo of the Converter and GOKO.

--------------------
US Army
Combat Motion Picture Photographer,
Vietnam, 1966-1967.
Trained at the US Army Pictorial Center, Astoria New York. 1965-1966, Which is now the Kaufman Astoria Motion Picture Studios.

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