RS-928 150W HF Power Amplifier 0.5-30Mhz Half Duplex for FM AM SSB CW FT8 SDR IC705 Transceivers
Aliexpress UK
NOTE - THIS ITEM IS SOLD AS SPARES OR REPAIR. The RF transistors suggest the amplifier was UHF.
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RS-928 150W HF Power Amplifier 0.5-30Mhz Half Duplex for FM AM SSB CW FT8 SDR RS978 Transceivers
Aliexpress UK
Output Power for SSB (Output Power) Modulation: 200W PEP max. Output power for AM / FM modulation (Output Power): 100W max. AMPLIFIER W/PREAMP (KL200-P). Power Consumption during Transmission: Up to 10A.
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RF OUTPUT 1 output has to be used for direct connection to ACOM antenna tuners 04AT or 06AT only. The ACOM 500S amplifier uses a rugged LDMOS transistor. RF OUTPUT 2 output has to be used for direct connection to antenna or to non ACOM antenna tuner.
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The LA435 is a wideband compact amplifier for the UHF band; covering from 405 to 480 MHz. Output is nominal 60W at full power (70W max). Input drive from 1W to maximum of 5W, ideally suited to low power handheld transceivers.
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HF linear amplifier. Functionality of transmission and full operation unverified. Operates on standard AC power.
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The KL 703 is a 12V linear amplifier for use in the 25 – 30 MHz frequency range, with a drive power of 1 to 35 W in all modes. Mode: AM – FM – SSB – CW. Output Power: 500W max. Input Current: 50A max.
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The LA-250 is a 200W 140-150MHz amplifier, at 1 to 20W input (13.6V 30A). It uses 4 Mitsubishi RD70 Mosfets mounted on a copper heat spreader. Output RF Power (Nominal): 30 - 210 W ; 200W max AM/FM/CW.
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Tested with FT655. There is no overdrive, so I think it is stable. I have previously had the relay to the receiving preamp replaced with a new one during repairs. The product is old but valuable. We are really glad to have a deal with people all over the world.
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