CA
The Tektronix Type CA is the most common plug-in for 500-series scopes – over 50,000 were produced. It was designed by John Kobbe and Bill Polits. The NORMAL/INVERT switch and algebraic add functions were suggested by Charlie Rhodes.
Type CA is an enhancement over its predecessor, Type 53/54C, adding ADDED mode to the A, B, CHOPPED, ALT repertoire. The "A" in "CA" stands not only for the fact that it is a modified, enhanced replacement, but also because the feature added was "ADDED".
Type CA was introduced in 1959 and discontinued in 1973, making it not only the most-produced but also one of the longest-lived.
Late versions have BNC connectors instead of UHF connectors.
Lavoie Laboratories produced an unauthorized clone, the Lavoie LA-265-CA.
Key Specifications
- please add
The risetime of a Type 545 oscilloscope with a Type CA plug-in is 15 nanoseconds, and the bandwidth is 24 MHz. Maximum vertical sensitivity is 50 mV/div.
Pictures
Front view
front view
left view
right view
top view
bottom view
schematic
Some Parts Used in the CA
| Page | Class | Description | Used in |
|---|---|---|---|
| 6AK5 | Vacuum Tube (Pentode) | RF pentode | B • C • CA • G • K • L • S • Z • 517 • 517A • 524 |
| 6AU6 | Vacuum Tube (Pentode) | RF pentode | 2A60 • 80 • 107 • 160 • 181 • 190 • 310 • 310A • 316 • 317 • 360 • 502 • 502A • 511A • 512 • 513 • 516 • 517 • 517A • 524 • 526 • 529 • RM529 • 531 • 531A • 535 • 536 • 545 • 545A • 546 • 547 • 549 • 555 • 575 • 581 • 581A • 585 • 585A • C • CA • Q |