In SERIES, parallel will give you half the value. Maybe this was a
typo.
Generally speaking the closer the tolerance the better, i.e. 5% is
better than 10% but the actual value is what is important. Resistors
and capacitors are often closer to their nominal value than the
tolerance limits. Using resistors or capacitors in either series or
parallel will tend to average out their values, i.e. improve their
accuracy. But, not always, a bunch from the same lot may all be high or
low and using them in series or parallel won't improve the overall
accuracy.
For many applications in old radios the original resistors were
only about 20% accuracy, more modern units are almost always 10% or better.
If you are replacing low power carbon composition resistors use
modern carbon or metal film ones, they are much better and will last
forever. Modern plastic film caps are much better than the original
paper caps and both are probably cheaper.
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On 1/18/2025 12:07 PM, Richard Oscoda via groups.io wrote:
Thanks for the supply lead. The soldering is messy because I was
removing a huge yellow capacitor that is not on the schmatic.
Showing my ignorance; can I create a 600ohm Axial Ceramic Cement Power
by using two 300 Ohm in parallel? ?Also, the 10 percrent figure is more
desireable than 5 percent?
--
Richard Knoppow
Los Angeles
WB6KBL
SKCC 19998
