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Re: 2 CPK-4 plus an AM radio make a complete station

 

My 20 m version of CPK ¨C four is working great. I made my first contact (650 miles) with a good report. I was using a 9 V battery with a 2N2222 as the final (Q2) with my dipole at 10 feet.?



Wayne F. Steury, N9EGT?


On Tue, Oct 1, 2024 at 8:35?AM Adam Rong via <rongxh=[email protected]> wrote:

Hi Matt,

What is the current consumption? If it is around 160 mA, it is not necessary to add the heat sink if you don't key it for a long period of time.

Thanks,

Adam

ÔÚ 2024/9/30 21:18, mweidle@... via дµÀ:
Hi Adam,
?
I used a simple 9V battery. The output also is a question of the lpf.
?
Maybe I will use a heat sink for the P.A. Transistor as I used for the 13 transistor trx.
?
73 de Matt
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