The table shows the exact amount of precious metals in grams per 1 unit of product:
| Gold (Au) | Silver (Ag) | Platinum (Pt) | Palladium (Pd) |
| 0,0492 | 0,485 | 0,000538 | 0 |
Б3-21 contains 0,0492 g. Gold , 0,485 g. Silver , 0,000538 g. Platinum .
Given the course of precious metals, we calculate the approximate cost. Multiply the amount of precious metals by the current exchange rate.
Estimated cost= 0,0492g*2840.7$ + 0,485g*30.8$ + 0,000538g*1625.56$ = 155.575 $
Калькулятор Б3-21 is on the secondary market of radio components 155.575 $
| Gold (Au) | Silver (Ag) | Platinum (Pt) | Palladium (Pd) |
| 2840.7 | 30.8 | 1625.56 | 3085.54 |