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Generally speaking, solid-state power amplifiers contain four main components: input, output, amplification stage and power supply. [8] MOSFET transistors and other modern solid-state devices have replaced vacuum tubes in most electronic devices, but tubes are still used in some high-power transmitters (see Valve RF amplifier). Although ...
SSA 400 - 400W HF Solid State Power Amplifier SSA 420 - 400W HF Solid State Power Amplifier SSA 1000 - 1000W Solid State Power Amplifier SSA 1020 - 1000W Solid State MOSFET Power Amplifier ATM 1000 - Automatic Antenna Coupler BBD-367 - HF Broadband Dipole Antenna Ra 200 - 8W HF Manpack Receiver-Transmitter for the Swedish military ***
Solid state linear amplifiers are more common in the 1000-watt range and can be driven by as little as 5 watts. [3] Modern power devices using LDMOS technology allow for more efficient, cost-effective linear RF power amplifiers for the amateur radio community.
The company's "K-Line" includes the K3 transceiver, the KPA500 500W solid-state power amplifier, the KAT500 automatic antenna tuner, and the P3 panadapter. [9] The P3SVGA add-on for the P3 displays panadapter data on a large screen, and the W2 HF/VHF/UHF wattmeter are sometimes considered part of the K-Line.
The active device can be a vacuum tube, discrete solid state component, such as a single transistor, or part of an integrated circuit, as in an op-amp. [citation needed] Transistor amplifiers (or solid state amplifiers) are the most common type of amplifier in use today. A transistor is used as the active element.
The receiver is filtered by a 22 pole crystal filter with switchable extra 8 and 6 pole narrow band CW filters, a 14 pole SSB filter and a separate 14 pole CW filter. The RF circuit is based on a – manually or automatically – microprocessor controlled PIN diode attenuator with 2 bipolar power transistors used as a high level RF amplifier in the receive mode and as a double RF output pre ...
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