Learn More – opens in a new window or tab. I’m not sure there’s much that can be done there. BE of the Germanium PNP Q4 and has a temperature variance of roughly 26, ppm over the course of the day’s temperature variations. See terms – opens in a new window or tab. Learn More – opens in a new window or tab International shipping and import charges paid to Pitney Bowes Inc. Please enter a valid ZIP Code. For additional information, see the Global Shipping Program terms and conditions – opens in a new window or tab.
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Learn more – opens in a new window or tab. As I understand the problem so far, the forward drop on the emitter-base junction nominally mV since it’s Germanium has a temperature coefficient TC of a few mV per degree C, 721w that this combined with the TC of the zener is producing the variation in the reference voltage.
For additional information, see the Global Shipping Program terms and conditions – opens in a new window or tab. Rugged, dependable, and roughly as old as I am, it is also pretty temperature sensitive. Thanks for taking the time to provide detailed feedback! Learn More – opens in a new window or aydio Any international shipping is paid in part to Pitney Bowes Inc. See terms – opens in a new window or tab. Image not available Photos not available for this variation. I believe this is primarily due to the primitive-ish emitter-follower-based voltage reference circuit is uses:.
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HP Hewlett Packard 721A 30 Volt DC Power Supply
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HEWLETT PACKARD HP A POWER SUPPLY VDC @ MA | eBay
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