...under perpetual construction.
These pages contains various information about several RF power amplifiers, mainly for the HF bands, that I have built and characterized.
Most of the measurement were done with the automated system described in the automated IMD measurements page, so a standard set of data is usually shown:
Here is a list of the amplifiers characterized so far:
Measurements on the QRP Project PA-2008, a 5 W amplifier for the HF bands.
Measurements on a wideband 5 watt amplifier, designed by DL2EWN.
Measurements on a wideband 1 watt amplifier, designed by DL2EWN.
A small power amplifier for the HF and VHF bands using a PD85004 LDMOS in class A.
Another small power amplifier for the HF band using two PD85004 LDMOS in push-pull (class AB).
A Class-A simple QRP power amplifier covering the HF and the 50 MHz band, designed by Jim Veatch, WA2EUJ.