----- Original Message -----
From: "Hal Murray" <[email protected]>
To: "Discussion of precise time and frequency measurement"
<[email protected]>
Sent: Tuesday, July 21, 2009 2:59 AM
Subject: [time-nuts] Where does 28V come from?
That said, the modules also appear to be powered by 28VDC, add some
regulation, you could use the chassis to power the Thunderbolt, and
mount it in one of the blank panels.
Lead acid batteries are close to 2V per cell. For cars/trucks, they come
conviently packaged in 6V and 12V units. The phone company works off 48V.
But where does 28V come from?
The Isotemp OSCO 127-10 data sheet says 27 V, but that's +3, -6 or 21-30V
which straddles both 24V and 28V.
Hal,
Where did you find that Isotemp OSCO 127-10 data sheet ?
Any other data on that unit?
Phil
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