[ARC5] BC453 on 24V - screen voltage

Robert Eleazer releazer at earthlink.net
Tue Dec 10 22:02:41 EST 2019


On my National NC-155 I smoked the resistor feeding B+ to the LO when I replaced the 5R4 with a solid state tube substitute and left the switch on Standby while I cooked dinner.  I found that I coud no longer read the color code on the resistor due to it being burnt, but that that it measured exactly 10 times the value on the schematic.  I did not know if the wrong resistor was installed or if the schematic was wrong - but it did not seem to matter to the set.

I now have another NC-155 that I repaired.  I should go look at that one's resistor and see what the value is.

Wayne
WB5WSV       
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