[QuadList] Ampex Quad VTR Airflow Requirements

[Roger Brett]

Hi,
Does anyone have info regarding air system requirements for the typical 
Ampex VR series quad machine?  I'm planning the air supply system for 
one fairly soon.

It's been quite a while since I maintained one of these, and I don't 
seem to have this data on file.

I don't have physical access to the unit yet, but besides the air 
bearings on the head, I believe it has a venturi system to generate 
vacuum for the guide.  This aspect would of course increase the flow 
requirements.

Data I'm trying to get:

- Max (worst case) CFM of airflow needed for bearings and venturi combined
- Nominal air pressure needed at the head bearings for proper operation

Any help would be appreciated!

Thanks,

Roger Brett