General

General discussion on the future of ham amplifiers, either tube or solid state

General

Separate toroids below 7 MHz

Pi-L plate circuit with separate toroids for all bands below 7 MHz

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Built-in SO2R

Honest-to-God SO2R capability where two separate tuned inputs are switched to their own tuned outputs to share the RF deck across two different transceivers on two different bands. Share the expensive tube, power supply, and protection circuit while effectively doubling the input and output tuning circuit

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Multi speed fans, push pull cooling

Multi speed fans, push pull cooling

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FULL QSK

Reliable FULL QSK CW operation....

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High voltage switching power supply

What are the hurdles to successfully designing and constructing such a supply? It seems that the weight savings would be substantial. Is the RFI problem the only barrier?

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Tube Selection

4CX1500, FU728F,4CX3000A7, 3CX3000A7, or YC156 as tubes are readily available new or as pulls.

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Enough power to run the legal limit CCS

2.5 KW out CW, SSB, or digital which will let it run any mode at the legal limit 24 X 7

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Advanced antenna change detection

Pass through antenna selection signals to detect antenna changes and trigger retuning. For instance, i have up to 48 (6 bands * 8 control lines) relay control lines from my antenna selection boxes. The amp would remember which combination of antennas and bands it had been tuned for and return to those settings or if it had never been used before force a new tuneup. this would have to be very generalized since i use ...more »

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Advanced ALC

Automatic setting input level to achieve specified pep output. Preferably done without affecting the radio driving it.

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Direct digital synthesis

Use direct digital synthesis as is done in high end broadcast amps.

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A legal-limit amplifier in a kit form

What about a legal-limit amplifier in a kit form? A kit that is assemble-only and requires no soldering. The only electrical work would be installing pre-tested circuit boards and connecting them with simple connectors, only requiring a VOM for testing as each assembly test is completed.

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A KISS tube or solid state amplifier

I would like a solid state legal limit amp, which is reasonably priced. What they are asking for some of these amps is atrocious, I paid less for my first car than for what they want for amplifiers now a days. Even tube amps, some of the prices are simply outrageous on tube amps. Make it on the KISS principle, somebody has to have a nice amp at even 1KW that doesn't cost a small fortune.

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