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| Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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16th Nov 2014, 11:24 pm
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#1 |
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Heptode
Join Date: Jul 2012
Location: Derby DE1, Derbyshire, UK.
Posts: 626
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Body Tip Spot Resistors?
Hi,
Does anybody know what type of paint was used, to indicate the markings and the values of these type of resistors? Was it a special paint of some sort. Also does anyone have any idea what year the body tip spot resistor was first intreduced, were they pre-war? Thanks, Paul. |
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17th Nov 2014, 11:05 am
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#2 |
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Dekatron
Join Date: Feb 2007
Location: Lynton, N. Devon, UK.
Posts: 7,081
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Re: Body Tip Spot Resistors?
Pre world war 2, at any rate.
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17th Nov 2014, 12:16 pm
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#3 |
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Dekatron
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
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Re: Body Tip Spot Resistors?
Not sure when they were first introduced, possibly in the 1920's, apparently the colour code was introduced in the early 1920's by the RMA (Radio Manufacturers Association)
Lawrence. |
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