William Everhart wrote:

Find out the max current handling of the FET and then put a fuse in
line with the out that's rated at that current. You'll just have to
replace fuses once in a while. Don't forget to put it in an easy spot
to get to.


A fuse may be too slow to react. A diode or two may be of use. Here's
one set up using a single pole double throw switch to remove the antenna
from the set when not in use AND give protection when connected. Static
protection only, not lightning.


This lets the antenna be grounded when not in use. OA, OC and BO are
terminals on the switch. D1 and D2 are diodes. and are continually
connected between OC and OA. The antenna wire is always connected to common.


antenna in __________
is common |
to ground | to ant. |
------------OA | BO-----------| Radio
| OC to gnd|
D1 |--|--| |------|_________
D2 |--|--| | |__|
|
to ground |
--------------------------------|



mike