Due to serious illness I am looking at simplifying and downsizing my radio
equipment and returning to QRP using my old K2. Unfortunately the K2 seems
to lack a facility that I used on the K3 namely a KEY OUT jack that could be
used to key an external amplifier on transmit (or in my case the MFJ
I can send you an amp kit free of charge but let me check my junk box first .
Sent from my iPhone 4
Julian, G4ILO julian.g4...@gmail.com 於 2011年7月21日 下午9:23 寫道：
Due to serious illness I am looking at simplifying and downsizing my radio
equipment and returning to QRP using my old K2.
Julian -
Yes, there is. Check the K2 notes pages on the Elecraft web site, or
build your own, which is what I did.All that is required, if I
remember correctly, is a resistor (anything between 1000 and 2200 Ohms,
1/4 watt) and a NPN transistor capable of handling the required
Jim
Instead of using 8T to drive the keying circuit, you should use the fall
of 8R - 8R falls before 8T is asserted and stays down longer than 8T is
active. It will follow the menu setting for t-r (8R HOLD) and the delay
setting.
Using 8T could cause hot switching at the amplifier in some
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