On 29/06/2020 12:04 pm, Phil Allison wrote:

Terry Schwartz wrote:
====================


Not unusual for high value resistors to fail open.


** Well they don't fail short very often - but high rates of such in new looking equipment is very unusual.

**I've never seen them fail S/C. O/C, yes.



This was also true for leaded resistors.

** Only those with lots of DC across them, not the case here.

**Nope. Seen lots fail over the years. Even those in preamp sections,
when Voltages are well below 40 Volts.



The same environmental conditions that cause the surface corrosion
contribute to the resistor failures.

** Yeah - I did figure that.

But chip resistors are unusually vulnerable cos of exposed silver.

**Certainly are. I've seen a few fail.


--
Trevor Wilson
www.rageaudio.com.au

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