[QuadList] Restoring an Ampex AVR-1

[Tim Stoffel]

I'll help you create an AVR-1 hookup for any line voltage you might
have.

Tim Stoffel

On Mon, 2009-07-06 at 10:48 -0400, Dave Sieg wrote:
> John:
> Are you certain your building is wired for 208v 3 phase?  Unless it is
> a very large industrial type building most are only wired with 240v
> two phases.  You would have to take the front panel off your breaker
> panel to see if there are three feeder buses or just two.  I have seen
> people who don't understand the distinction wire the three "hot" pins
> of a 3-phase connector to three adjacent breakers in a 240v two-phase
> panel which means that two of the phases are essentially shorted
> together.  This might be part of your problem. Another way to tell
> would be to use a voltmeter to confirm that you have 208 volts between
> any two of the three "hot" contacts of the power socket.  (You
> probably have an L21-30 connector,
> See http://en.wikipedia.org/wiki/Industrial_and_multiphase_power_plugs_and_sockets#NEMA_10-20.2C_10-30_and_10-50  The "hot" contacts are the outer three that do NOT have an L-shape)  I am not familiar enough with the AVR-1 to know if there are tapping options to change it over to 240v but the manuals should say.
> Dave
> 
> On Mon, Jul 6, 2009 at 9:08 AM, John Walko <jwalko at scenesavers.com>
> wrote:
>         Park:
>         
>         We sort of gave up on the AVR-1.  It is simply a time issue…we
>         would really like to get it working, but don’t have the time
>         to spend on it right now.  Maybe some time in the future.
>         
>         The machine was working when it was taken out of service.  It
>         has been sitting without power for probably the last 5-6
>         years.  It appears as if the machine was originally wired for
>         a 208-three phase volt power supply, and that is the way it is
>         currently wired.  
>         
>         
> -- 
> Dave Sieg
> http://www.davesieg.com
> 
> http://www.scanimate.net
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