[QuadList] Ampex Quad VTR Airflow Requirements

[Roger Brett]

L.E. thanks for the great advice and information.  It has really filled 
at least one void in my mind.  Now for the others ;-)
/RB

On 6/1/2012 10:12 AM, L.E. Odham wrote:
> Hello Steve and Roger,
>
> For a Mark ten head panel,
>
> The guide needs 35-40 inches of vacuum, and the air bearing head needs 58-60 psi. The tank pressure typically runs 100-130 psi, and regulate that down to 58 psi. That gives a good safe air reserve while the head is spinning.
> It is a good idea to have a moisture trap and an oil trap in the line if you are using a cylinder type compressor instead of a carbon vane type.
>
> OK, hope this helps a little. If you need book spec pages, I have them here somewhere.
>
> larry
>
> LE Odham
> Engr/Tech
> TAMIS Archive
> Knoxville, Tenn.
>
> ----- Original Message -----
> Hi Roger and Ted...
>
> This is one subject that "I too" have been waiting patiently (very
> patiently) to roll around and get discussed and determined.
>
> I really want to get my VR1000C (w/all upgrades 1961) back in a nice
> run/show installation.
>
> The airflow/vacuum part I had no training or knowledge of how it went on or
> how to "get it right.
>
> I will follow this subject with you folks very closely.
>
> Which machine do you have Roger?
>
> Steve Spears
> Orrs Island, Maine
>
>
> ----- Original Message -----
> From: "Ted Langdell"<ted at quadvideotapegroup.com>
> To: "Quad List"<quadlist at quadvideotapegroup.com>
> Sent: Friday, June 01, 2012 1:56 AM
> Subject: Re: [QuadList] Ampex Quad VTR Airflow Requirements
>
>
>> Hi, Roger,
>>
>> Welcome to the list.
>>
>> It might help if you could be specific about which models, since there may
>> be some variations between series.
>>
>> You should get answers in fairly short order depending on who's on-line at
>> any given time.
>>
>> Ted
>>
>> Ted Langdell
>> Secretary
>>
>> On May 31, 2012, at 10:11 PM, Roger Brett wrote:
>>
>>> 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
>>>
>>
>> Ted
>>
>> Ted Langdell
>> Secretary
>>
>>
>> Please trim posts to relevant info when replying.
>>
>> Change subject to reflect thread direction. Thanks.
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>
>
> Please trim posts to relevant info when replying.
>
> Change subject to reflect thread direction. Thanks.
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