[time-nuts] Longevity of Rb standards

Richard Bown richard at g8jvm.com
Sat Nov 8 04:35:25 EST 2014


On Fri, 7 Nov 2014 19:54:40 -0500
Bob Camp <kb8tq at n1k.org> wrote:

> Hi
> 
> If we are talking about 12 hours on / 12 hours off each day - leave it on, That one is a slam
> dunk. The cycling will kill stuff faster than any aging on the bulb (or whatever).
> 
> If you are are talking about running it once a month, then that’s a bit different. You will need
> to run if for more than 12 hours to get it fully stable. A lot depends on the characteristics of
> the unit you have. Three days or so is a pretty good run in number for an Rb.
> 
> Nobody really knows how long these Telcom Rb’s will last. You see numbers ranging from 5 years to
> 25 years tossed around. Both sound a bit suspect to me. The surplus parts all have 5 years on
> them by now. Running anything as hot as an Rb does continuously for 25 years without failure
> seems a bit much as well. There’s sure to be a bunch of fine print on both of those numbers.
> Certainly there are examples of Rb’s that are > 25 years old that are working fine. I personally
> have killed a number of Rb’s in under 5 years (by abuse …). Your mileage will vary …. 
> 
> Bob


Thanks for the informative reply Bob

-- 
-- 
Best wishes /73
Richard Bown

Email : richard at g8jvm.com
HTTP  :  http://www.g8jvm.com
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