Re: 7a13 observations

Dave Wise
 

TO-18 style 3-pin pattern in a white ceramic body, with a glob of black epoxy sealing the guts in from the top
TO-105 and TO-106 were low-cost replacements for TO-5 and TO-18. Pin-circle ceramic header with epoxy dome.
TO-106 was supplanted by the even cheaper TO-92 with flat leadframe molded in epoxy.

Dave Wise

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