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Hi Rick,

OK, I'll call your bluff.?? :)???? I have your ME20? I built but it has a 2SC2166 in it which I won't pull and test (which you didn't mention using), but your ME40? I built has the 2SC2078 in it--I pulled it just now and put it in my RF transistor power amp test fixture which has a 20 meter LPF (with two harmonic trap caps),? and runs at 12.8? VDC; I use a function generator to drive the test fixture (I've shown the circuit in previous postings). I test for a solid 5 watts output,? 45 Vpp across a measured 50.06 ohm 12 watt dummy load. I've found that a good RF transistor will give 5 watts output at 12.8 VDC supply. I put your 2SC2078 in the test fixture and varied the function generator output to get the maximum output that I could get, at 14.0 MHz. The most I could get out of your 2SC2078 was a paltry 25.6 Vpp, 1.64 watts! So your 2SC2078 is just another fake counterfeit just like all the others I've tested from eBay and Amazon so far (and from Dan's Small Parts and Kits) except for the one seller which I've mentioned, in Las Vegas. A genuine 2SC2078? (from old CB pulls) that I have several of will output 46-47 Vpp at 14.0 MHz; the good Chinese 2SC2078 from the Las Vegas seller will output 45.5 Vpp or a little more.

I think you need to revise your testing procedure if you claim the 2SC2078 that's in my ME40 is not defective and is not a fake counterfeit. But since your kits are only designed to put out 1.5-2 watts, I suppose these fake counterfeit transistors you're using will do the job if you drive them hard enough.

73,

Steve AA7U