Patent US 3633120A
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| Patent number | US 3633120A (click link for details and documents via Google Patents) |
|---|---|
| Title | Amplifier circuit |
| Inventors | Carl Battjes |
| Company | Tektronix Inc |
| Filing date | 1970-09-16 |
| Grant date | 1972-01-04 |
This patent describes the ft doubler circuit, a transistor amplifier topology that has a current gain of 2 even at the transit frequency of the transistors that are used in the circuit.