The PR2 from Peter Russell is for RF amplification or signal detection.
The internal structure is hidden by the gettering. At one angle it was possible to partly see inside. The small dimensioned oval anode is mounted vertically.The balloon envelope is 44 mm in diameter and, excluding the B4 base pins, is 94 mm tall.Reference: Data. Type PR2 was first introduced in 1928. See also 1928 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 |  a | g2 | f | f |
|
|
Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vg | mAa | ra | gm |
| 2.0 | 0.12 | 120 | - | - | 28,000 | 0.46 |
|
Updated August 08, 2023.
|
|
