[kllrbee]

Hey all,
I installed a DB8e antenna and RCA preamp a few years back. Has been working beautifully since about 3 days ago. Now I get no signal whatsoever on any of the 3 TVs. The first day it happened, I unplugged preamp for a minute, then plugged back in and it started working. It has gone out again since then and unplugging does not solve.
This leads me to believe the preamp is shot. But do they go bad periodically? Is 3-4 years about the expected lifespan? Is there a way to check to see if it is, in fact, the preamp? Anything else I should look for, test, etc?
Thnx guys