Germany DDR
0.04 - 0.05$
price on 08.08.2023
Heinrich Georg Barkhausen, born at Bremen, was a German physicist. In 1921 he derived the first mathematical conditions for oscillation in electrical circuits, now called the Barkhausen stability crit.. Read more »
| Country: | Germany DDR |
| Type: | Postage stamps |
| Series: | Famous Personalities |
| Nominal: | 10 Pf. |
| Year: | 1981 |
| Size: | 43 x 26 mm |
| Perforation: | comb 13 x 12½ |
| Mintage: | 16,000,000 |
Famous Personalities
