UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Mystery 1930s Philco name that Resistor ??

Silicon · 15th May 2019, 7:03 am

If there are similar resistors in the radio you may be able to work out the identification code by comparing the actual measured resistance with the colours.

The resistances originally had a tolerance of 20%, and will probably have changed over time.

There may have been a coding system which became redundant in the 1940s or 1950s.

15th May 2019, 7:03 am	#9
Silicon Nonode Join Date: Jun 2007 Location: Coulsdon, London, UK. Posts: 2,163	Re: Mystery 1930s Philco name that Resistor ?? If there are similar resistors in the radio you may be able to work out the identification code by comparing the actual measured resistance with the colours. The resistances originally had a tolerance of 20%, and will probably have changed over time. There may have been a coding system which became redundant in the 1940s or 1950s.