What should be "simple" is simply misunderstood

by many, if not most hams.


Most transceivers have a back-panel connection for keying a linear amplifier.

Most amplifiers have a back panel for connecting to the transceiver.

So why can't we just connect them together and expect them to work?

What all can go wrong if we get it wrong?



  • You can blow up the keying circuit in the transceiver the first time you try to key the amp.
  • You can burn the relay contacts in the Amp's T/R relay.
  • You can damage the tube(s) or transistors in you Amplifier.
  • You may be causing key klicks across the band when working CW.
  • Any combination of the above.


In the past I have created two pages on related topics.  Recently I created a page on CW AMP Sequencing.  I have bundled all three pages together here under the common topic of AMP INTERFACING.


Even if you do not work CW, I suggest you read that page because it has a lot of useful information for learning about the differences in different models of linear amplifiers.


Here are the three pages:

  1. CW AMP Sequencing
  2. Linear Amp Relays
  3. QSK Realities