On Sun, 12 Mar 2017 10:13:05 -0400, Mike Rotch
wrote in

On 03/12/2017 07:17 AM, CRNG wrote:
This thread reminds me of a surge protector question I have.

I have a Tripp-LIte surge protector

https://www.tripplite.com/isobar-4-o...es~ISOBAR4220/

It has two "filter banks": one marked (50db) and the other (75db).
What do those number mean? Different levels of surge protection?


The Isobar has internal barriers (isolated filter banks) that prevent line noise from causing A/V distortion, computer lock-ups, data errors and similar problems. Filtering is accomplished by combining toroidal chokes, ferrite rod-core
inductors, HF/VHF capacitors and layers of metal oxide varistors into isolated filter banks that remove EMI/RFI interference.

Oh, thanks very much Mike. I know very little about electronics. BTW,
which provides the greater barrier to line noise: the 75db I presume?
--
Web based forums are like subscribing to 10 different newspapers
and having to visit 10 different news stands to pickup each one.
Email list-server groups and USENET are like having all of those
newspapers delivered to your door every morning.