Physiological Monitor: Difference between revisions

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The Tektronix Physiological Monitor might have been a prototype of what became the [[410]].
The '''Tektronix Physiological Monitor''' might have been a prototype of what became the [[410]].
It is all solid-state except for the CRT.
It is all solid-state except for the CRT.
It has a nickel-cadmium battery pack comprising 10 D-size cells.
It has a nickel-cadmium battery pack comprising 10 D-size cells.
The battery is center-tapped, providing +6.25V and -6.25V when fully charged.
The battery is center-tapped, providing +6.25 V and -6.25 V when fully charged.
There doesn't appear to be any sort of regulator or DC-to-DC converter
There doesn't appear to be any sort of regulator or DC-to-DC converter
for the low voltage, just direct connection of the battery to the amplifiers and other circuitry.
for the low voltage, just direct connection of the battery to the amplifiers and other circuitry.