[Amps] every db lost re Tubes vs. Solid State

Jim Brown jim at audiosystemsgroup.com
Mon Apr 30 10:47:04 PDT 2012


On 4/29/2012 11:01 PM, Charles Harpole wrote:
> I know ever coax joint, every coax switch, and so on costs rcv db.

You "know" WRONG!  This is one of those often repeated myths with little 
basis in fact. A properly done coax connection is essentially lossless 
at HF.  Loss in a switch depends on the quality of the switch. There are 
commonly available relays and switches and connectors with loss too low 
to measure, and there are poorly built and junk parts that will 
overheat, go intermittent, and/or fail.

73, Jim K9YC


More information about the Amps mailing list