Claims
- 1. A tube card for use with computer audio circuitry comprising:
at least one vacuum tube, each said vacuum tube having an input and an output; a DC to DC voltage converter supplying high voltage to said vacuum tube; and an analog output signal from a sound card being input into said at least one vacuum tube, said output of said at least one vacuum tube being connected to an external device.
- 2. The tube card for use with computer audio circuitry of claim 1, wherein:
a heater of each said at least one vacuum tube being supplied with electrical power from a computer power supply.
- 3. A tube card for use with computer audio circuitry comprising:
at least one vacuum tube, each said vacuum tube having an input and an output; a DC to DC voltage converter supplying high voltage to said vacuum tube; and an analog input of a sound card being coupled to an audio input device through said at least one vacuum tube, an electrical signal from said audio input device being preamplified by said at least one vacuum tube.
- 4. The tube card for use with computer audio circuitry of claim 3, wherein:
a heater of each said at least one vacuum tube being supplied with electrical power from a computer power supply.
- 5. A combination tube card for use with computer audio circuitry comprising:
at least one vacuum tube, each said vacuum tube having an input and an output; a DC to DC voltage converter supplying high voltage to said vacuum tube; and a sound chip having an analog output, said analog output being connected to an input of at least one vacuum tube, said output of said at least one vacuum tube being connected to an external device.
- 6. The combination tube card for use with computer audio circuitry of claim 5, wherein:
said sound chip having a digital input/output, said digital input/output being connected to a motherboard of a computer.
- 7. The combination tube card for use with computer audio circuitry of claim 5, wherein:
a heater of each said at least one vacuum tube being supplied with electrical power from a computer power supply.
- 8. A tube card for use with computer audio circuitry comprising:
at least one vacuum tube, each said vacuum tube having an input and an output; a DC/DC voltage converter supplying high voltage to said vacuum tube; and a sound chip having an analog input, said analog input being coupled to an audio input device through at least one vacuum tube, an electrical signal from said audio input device being preamplified by said at least one vacuum tube.
- 9. The combination tube card for use with computer audio circuitry of claim 8, wherein:
said sound chip having a digital input/output, said digital input/output being connected to a motherboard of a computer.
- 10. The combination tube card for use with computer audio circuitry of claim 8, wherein:
a heater of each said at least one vacuum tube being supplied with electrical power from a computer power supply.
CROSS-REFERENCES TO RELATED APPLICATIONS
[0001] This is a utility application, taking priority from provisional patent application, serial number 60/245,285 filed on Nov. 1, 2000.
Provisional Applications (1)
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Number |
Date |
Country |
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60245285 |
Nov 2000 |
US |