[time-nuts] HP 106B quartz frequency standard...the story so far

[Mark Sims]

Speaking of carbon comp resistors that change value...  If you have any Tek S-xx sampling heads for the 7000 series scopes that are not working (almost always shows up with a flat trace off the top or bottom of the screen,  visible with the beam finder)  the problem is usually that one or more of those 1/10 watt 5% carbon comp resistors have changed in value quite a bit.  20-30% changes are not uncommon.

The other problem (that is almost never repairable) is fried sampling diodes...  some idiot over-volted the input (wasn't me...  I promise...   I'd never do that...  I promise...)

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