The Tektronix P400 is a 20 MHz ×1 probe for the 22X (222A, 222PS and 224) scopes only.
| Tektronix P400 | |
|---|---|
 Compatible with 1 MΩ scope inputs Produced from (?) to (?)
Manuals
| |
This model number should not be confused with the 1956-vintage P400 Series probes that came out with the Type 541 and Type 545 scopes.