Solid state musical instrument amplifier with vacuum tube signal magnitude limiting
US5727069A · kind A · utility
7Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1994 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Jan 14, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G7/02
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A musical instrument amplifier has all solid state amplification stages but incorporates a pair of vacuum tube signal magnitude limiters to provide vacuum tube type sound when the amplifier is operating in a nonlinear condition. The vacuum tubes are connected to have no supply potential so as to minimize microphonics and are each provided with a small amount of reverse bias to provide a desirable shape of the tube conduction curve and space charge suppression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.