Hybrid thermionic valve and solid state audio amplifier
US6140870A · kind A · utility
16Cited by
30References
19Claims
0Family size
Inventor
Key dates
| Filing date | May 18, 1998 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | May 18, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/181
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A hybrid thermionic valve and solid state audio amplifier. A complete tube amplifier is scaled to produce a relatively low power yet also retain its small and large signal distortion characteristics. The output of the scaled amplifier is amplified by a relatively linear solid state amplifier. In one embodiment of the invention, a plurality of tube amplifiers are coupled in parallel and input to a mixing circuit for selectably mixing the outputs of the tube amplifiers and providing the mixed outputs to the solid state amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.