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#6
July 17th 03, 02:42 PM
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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. |
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