Dale Parfitt wrote:
RHF wrote:
JS,
I have used the NE-2 Neon Bulb and 10K Ohm Risistor with my portable
radio Antenna "GIZMOE" Connector Box to protect the external antenna
inputs of several radios.
I have also used a double pairing of Forward & Reverse Diodes to act
as a low voltage shunts along with the NE-2 Neon Bulb as the Higher
Voltage Shunt and the 10K Ohm Resistor for Static Bleed-Off.
Neon tubes "fire" at around 80-110V. Can your front end take this? Older tube rigs
can, not sure I would bet on a FET front end.
A pair of diodes right on the input can be disastrous. They are a nonlinear device,
easily driven into generating all sorts of mixing products- as they are right at the
antenna, everything from local AM, FM and TV will be seen by the diodes.
Dale W4OP
Some very good points Dale.