Elecraft KPA-500 at low drive levels

Using Anan-10e to drive KPA-500

I've been using my Apache Labs Anan-10e (and Elecraft KX2 at times) with my Elecraft KPA-500 quite a lot lately, mainly to take these lower-powered rigs up to the 100 watt level.

Although the KPA-500 is targeted towards those wanting to achieve 500-600 watts out from their Big Rigs, it makes for an excellent way to provide "boots" (a W1FB-ism) for QRP radios that have a 'Key Out' jack.

Here is the chart I made for myself as I continue to consider ordering a KPA-100 - Elecraft's amplifier made specifically for QRP rigs. While the KPA-500 produces a higher output, it is far less portable, especially given that mine is wired for 240 VAC.

The indecision continues...
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