| Mfr. Part No. | Description |
| PCT-33 | Matching Impedance (Ohms) Pri., 500 |
| PCT-78 | Matching Impedance (Ohms) Pri., 600 |
| PCT-27 | Matching Impedance (Ohms) Pri., 600 |
| PCT-77 | Matching Impedance (Ohms) Pri., 600 C.T. |
| PCT-76 | Matching Impedance (Ohms) Pri., 10,000 C.T. |