Re [Premium-Rx] Lightning hitting your Premium RX

[Edward Knobloch]

Hi, Gang

I second the idea of a neon bulb across the antenna input,
popular since at least the 1950's among hams.

Beware of the current Radio Shack "NE-2", though.  They package a NE-2 
bulb with a series resistor
(something like 47K) for 110V operation, and still call that 
combination  an "NE-2".  For receiver protection
you want a bare Ne-2 bulb without the series resistor.

Among some mil surplus electronics stuff I bought as a lot on eBay,
came two "transient eliminators," small diecast boxes with BNC connectors.
They were labeled "LEA Dynatech, Santa Fe Springs, CA
TE(HF) 75-BIP 12".  I leave one installed on my Racal 6790,
and have not had a repeat of the failure of the first mixer card,
which happened twice in my first year of ownership.
I don't know what magic device is inside the diecast box -
perhaps an NE-2?

73,
Ed Knobloch


w3jn at direcway.com wrote:

>A neon bulb across the input works FB for draining off static charges.  A NE-2 fires at about 60 volts, IIRC.
>
>Don't try this if you're gonna xmit thru it - you'll wreck the bulb.
>
>73 John
>  
>