Equalizing resistors needed for HV diode string?
- From: "John, N9JG" <john@xxxxxxxxxxxxxxxxxxxx>
- Date: Sun, 05 Feb 2006 19:28:24 GMT
Recently I have replaced the HV capacitor and diode strings in my L-4B. In
addition to replacing the caps, the original equalizing resistors across the
caps were each replaced with 100K, 2 watt ceramic composition resistors.
The original HV diode string along with its equalizing bridge resistors were
removed. The original diodes were replaced with 1N5408 diodes, but following
a source (which I can no longer locate) I did not replace the equalizing
resistors. The source had stated that modern diodes do not require the
diodes to be bridged with equalizing resistors.
The work was performed in August, 2005, and the amplifier has been working
fine ever since. But I have this nagging feeling that the diodes do need to
be bridged. Should I add equalizing resistors, or are my fears groundless?
John, N9JG
.
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