HM1802A ?

[oldgoldman]

hmmmm .. think i shall

 

[dtectr]

Its a microprocessor, likely made/sourced by Raytheon. WEBFLIS is your friend!

http://www.dlis.dla.mil/webflis/pub/pub_search.aspx
5962-00-264-2000 is the NSN

Funny, it's got gold showing, but the DOD Precious Metal Indicator code shows no precious metals, meaning less than 10 grains of gold (<0.0228571429 ounces of gold).

Cheers,

These have a high proportion of gold to weight ratio. Caps are heavily plated, the braze contains gold, both for the lid and chip.

I did these as 2 step - unsoldered lids and used Hcl-H2O2 to dissolve the base metals (the heat from unsoldering lids would shock the middle layer and split it open when dropped into cold solution).

A long process of Poor Man's AR would dissolve what remained, including caps. If you catch them in time, the gold on the lids come off as foils.