________________________________
From: Bob Camp <[email protected]>
To: Discussion of precise time and frequency measurement <[email protected]>
Sent: Sat, August 14, 2010 7:05:35 AM
Subject: Re: [time-nuts] What's the latest correct PICTIC II Mouser project?-
Heathkid
Hi
This isn't my design originally. The 620 ohm resistor in question sources
current into a diode stack. The initial current will vary more from the
tolerance of the diodes than it will from the 1 ohm change ( or 6 ohm = 1%).
<snip>
Maybe we should buy lots of diodes to match them, they are relative cheap,
also
use extra care installing them. Using hemostats as heat sinks and just enough
heat for a good connection do not want to damage/change them after the match.
Stanley
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