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Old 17th Oct 2019, 7:34 am   #16
Radio Wrangler
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Join Date: Mar 2012
Location: Fife, Scotland, UK.
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Default Re: Vintage Resistors, Possibly Philips?

On that data sheet, look at the spec for noise performance.

Excess noise and the lack of long term stability is why carbon comps were left behind by all but the most cost sensitive equipment (or firms with the most directly involved accountants)

Carbon film resistors are less noisy and more stable. Metal film even more so.

Watch out for modern thick film surface mount parts with their splodge of black stuff atop a ceramic chip. These are also surprisingly noisy... and can be 20dB noisier than metal film versions.

Not all places are noise-critical, but it's advantageous to know what to use in places which are. Sometimes the need for originality forces your choice.

David
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