RF Cafe Software
About RF Cafe
1996 - 2022
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...
All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.
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A lot of people are under the assumption that tube-based amplifiers are no longer being produced. Of course, some do not even know what a tube is. Even so, they are probably only familiar with the classic glass enclosure mounted on a plastic, Phenolic, or ceramic base with pins sticking out of the bottom. Many modern tube amplifiers have metal enclosures as well as glass; microwave oven tubes are an example. Audiophiles swear by their tube amplifiers, claiming that no solid state amplifier can replicate the tonal quality of tubes (which many attribute to the physical movements of the grids when stressed by the musical signals).
Systems Engineering | 817-249-4180 | Fort Worth,
RF Microwave Instrumentation | 215-723-8181
| Souderton PA
CPI, Eimac Division | 800-414-8823 | San Carlos,
CPI MPP | 650-846-3073 | Palo Alto, CA
Instruments for Industry (IFI) | 31-467-8400
| Ronkonkoma, NY
Electron Devices (formerly Litton) | 650-591-8411
| San Carlos, CA
MimiX Broadband (now AWR) | 281-988-4600 |
| 631-436-7400 | Hauppauge, NY
| 732-206-0660 | Brick, NJ
Research Instrument Co | 203-753-5840 | Waterbury
Electron Devices | +33 (0) 1-30-70-3500 | France
Ltd | +44 (0)20 8573 5555 | UK
Technology | 408-213-3000 | Santa Clara, CA
Related Pages on RF Cafe |
- Amplifier Design Resources
- Opamp Noise Figure
- Operational Amplifiers (Opamps)
- Amplifier Vendors - RF / Operational / Log Video
- Amplifier Vendors - Tubes, Vacuum, Klystron, TWT
- Amplifier Vendors - Discretes
- RF & Analog Amplifier Vendors - Packaged & MMIC
- NEETS - Introduction to Amplifiers
- Power Amplifier Linearization Using Diode On Voltage
- GSM Handset Power Amplifier Control Loop Design