According to the release notes, it can comfortably produce 10 Watts from a 12V supply and will not overheat even on continuous 100% duty-cycle operation.
It has 26dB gain with +/- 1dB gain flatness from 2 to 30MHz. This means that it requires just 25 milliwatts of drive to achieve 10 watts output.
It has lower gain above 30 MHz with a potential output of 4 watts on 50 MHz and 1.7 watts on 70 MHz.
There are no Surface Mount Components (SMD) to solder and a number of small transformers need to be wound.
Key Features:
10W output from 2 to 30MHz, using 12V Supply
Generously-sized heatsink, will not overheat even on continuous 100% duty-cycle modes
2-stage amplifier provides 26dB of gain
Push-pull driver and push-pull finals, for high linearity and low harmonic content
+/- 1dB gain flatness from 2 to 30MHz
4dB down at 6m (50MHz) and 8dB down on 4m (70MHz)
Standard 50-ohm input and output
Through-hole plated PCB, all through-hole components (no Surface Mount Devices)
Standard inexpensive components throughout
Tested for 1 hour at full-power 10W, 100% continuous duty-cycle with no forced air cooling
Tested for 15 minutes at 20W, 100% continuous duty-cycle with no forced air cooling
Tested at 20V supply
Tested into open load, shorted load and various mismatches without instability (oscillation)
http://qrp-labs.com/linear
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| Amplifier with supplied heatsink. |
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