> There is apparently a LARGE difference in relays and mountings - My
> Centurion is quieter than the relay in my Orion II.
Yes. I use Jennings or their Gigavac equivalents in my Titans and Herc
II, and they're reasonably quiet. I always work with headphones, and I
don't hear them, although I've done nothing special to prevent it.
I DO hear the Titan fans, and have the RF deck sitting on some acoustic
material to decouple it from the desk. That helps a lot.
It may also help to CLEAN the squirrel-cage fan occasionally (and it
certainly improves ventilation). That's easy to do with Q-tips,
accessing it from the air intake after the top cover is removed.
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