There are some reported incidents regarding electrolytic capacitor
failures. I have found these to be in the audio circuits where they
are used as coupling capacitors between stages. In as much as these are
polarized capacitors, should the stage offset drift in the wrong
direction by only a few millivolts, the capacitor can be reverse
polarized in the circuit. The result is a slow but noted deterioration
of the capacity of the component. The result is usually observed first
by decreased low frequency response and finally a decrease in overall
signal level. Replacement of the capacitor is thus warranted. In
some instances I have elected to use non-polar electrolytics of the same
voltage and capacity ratings.
With older radios such as the Omni VI and Omni VI Plus, it isn't a bad
idea to replace electrolytics as they normally decrease value with age.
On the other hand, if it is working..........don't bother to fix it.
73
Bob, K4TAX
On 6/29/2018 10:17 AM, Malcolm McLeman wrote:
Mylast(s) and kind replies. Sorry for delay plus missing out the U-tube link
here https://www.youtube.com/watch?v=6RnAC2PuuI8 and grateful on any comment re
electrolytic failure in reply from WA4AOS and others..
Another thing I've noticed which was not there before is the "chuffing" sound
when I move the main dial..
73
Malcolm F5VBU
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