Hard to tell. The ways in which they fail are too complex. Some last for years and decades while others last for a few years. I have a few Hunts caps which are almost sixty yeears old and still work fine. There can never be a true yardstick towards a failue of a cap. The only way is either by phsical examnation or a reduced performance. 73,s Paddy vu2pep --- On Thu, 3/29/12, Aravind Balasubramanian (VU2ABS) <vu2abs@gmail.com> wrote:
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