The content of precious metals in electronics components (Handbook).
The reference contains data on the content - of gold (Au), silver (Ag), platinum (Pt), palladium (Pl), ruthenium (Ru) and tantalum (Ta) in the various components of electronic equipment.
The format of the directory - the file MS Excel 97-2000 & 5.0 / 95
Number of Positions reference - 10920
1. Lamps and other electronic-vacuum devices. - 623
2. Mikroskhemy- 3260
3. P / conductor Devices 2690
Transistors, diodes, thyristors, LEDs zener etc.
4. Resistors fixed and variable - 1419
5. Capacitors - 317
6. Switching: 2267
connectors, switches, toggle switches, etc.
7. quartz filters, and other LZ - 344.
A complete list of items included in the directory can be viewed by downloading the demo file:
http://vtordragmet.narod.ru/dragmetd.zip (589 KB).
Other literature on the subject - https://irongamers.ru/sale/seller/8897