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 Title: |
US6111961:
Amplifier for a guitar or other musical instrument
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Hedrick, Guy L.; Hillsdale, MI
LaMarra, Franco; West Bloomfield, MI
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| Assignee: |
Guytron, LLC, Brookings, OR
other patents from GUYTRON, LLC (772458) (approx. 1)
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| Published / Filed: |
2000-08-29
/ 1997-07-09
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| Application Number: |
US1997000890492
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| IPC Code: |
Advanced:
G10H 3/18;
H03G 1/00;
H03G 7/00;
Core:
G10H 3/00;
more...
IPC-7:
H03G 3/00;
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| ECLA Code: |
G10H3/18P; H03G1/00; H03G7/00;
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| U.S. Class: |
Current:
381/061;
381/120;
Original:
381/061;
381/120;
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| Field of Search: |
381/061-62,28,56,319,77,103,104,120-121
084/701
330/278,254
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| Priority Number: |
| 1997-07-09 |
US1997000890492 |
| 1996-07-09 |
US1996000016098P |
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| Abstract: |
A musician's amplifier that produces an overdriven amplifier sound at any desired listening level by including an output section complete with audio power devices and a high-wattage dummy load in the pre-amplifier section of the amplifier. The audio power devices are overdriven to taste, and the results are then fed into a power amplifier section of the amplifier using a master volume control to set the desired listening level. The amplifier can include an effects loop and a tone control circuit in the power amplifier section. With this arrangement, the musician is able to accurately produce both overdriven and undistorted amplifier tones at many different listening levels with a single amplifier.
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| Attorney, Agent or Firm: |
Reising, Ethington, Barnes, Kisselle, Leearman & McCulloch, P.C. ;
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| Primary / Asst. Examiners: |
Isen, Forester W.; Mei, Xu
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| Maintenance Status: |
CC Certificate of Correction issued
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| INPADOC Legal Status: |
Show legal status actions
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| Parent Case: |
This application claims benefit of U.S. Provisional Application No. 60/016,098 filed Jul. 9, 1996.
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| Family: |
None
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First Claim:
Show all 20 claims |
We claim:
1. A musician's amplifier for use in producing an overdriven sound over a wide range of different volume levels, comprising:
- a pre-amplifier section having an input and at least one amplifier stage coupled to said input, whereby said amplifier stage amplifies audio signals received through said input;
- a power amplifier section having an output and at least one output stage coupled to said pre-amplifier section to receive the amplified audio signals, said output stage having a volume control and one or more audio power devices coupled to said output, whereby a speaker connected to said output can be driven by said audio power device(s) at a volume level that is set by said volume control;
- wherein said amplifier stage of said pre-amplifier section comprises an intermediate output stage That includes a dummy load and one or more additional audio power devices that are separate from said audio power device(s) of said power amplifier section, said additional audio power devices comprising one or more high current, low voltage gain audio power pentode tubes, with said dummy load being coupled to said additional audio power devices(s) to receive and dissipate energy supplied by said additional audio power device(s); and
- wherein said amplifier stage of said pre-amplifier section has a gain that is adjustable between a low gain setting and a high gain setting, said additional audio power device(s) being overdriven when said gain is at said high gain setting, whereby said pre-amplifier section can produce an overdriven sound that is used by said audio power device(s) of said power amplifier section to drive a speaker at a volume level set by said volume control.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 3 U.S. patent(s) that reference this one
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