03-07-2011, 11:21 AM
Hello Luke, Back in the 50's & 60's there was a colour code for valve base connections used mainly in military & some civilian radio equipment :- Heaters - Brown, Cathode - Yellow, Grid - Green, Screen - Red, Anode - Blue. Earth was very often - Black.
However, most military spec wiring was in looms, and with more & more American equipment being used, a lot of wiring was mono-colour with all terminations marked with Hellerman sleeving. AVO, Wayne-Kerr, Marconi etc also sometimes followed this sleeving method. Multi-coloured wires were also starting to appear in the 50's & 60's, and again were often terminated with Hellerman or similar sleeving.
In post-war years, there was a shortage of civilian type wiring (vir etc) but a surplus of ex WD wiring, so that was often used in domestic radios. More confusion, eh!
An extra two-pennoth - a favourate bitch of mine - I hate the use of un-used valvebase connections as "tags" for randomally connecting components - in many domestic radios !
If a chassis needs re-wiring because of perished rubber wiring - I fit paxolin tagboards or stand-off pillars instead.
Regards, David
However, most military spec wiring was in looms, and with more & more American equipment being used, a lot of wiring was mono-colour with all terminations marked with Hellerman sleeving. AVO, Wayne-Kerr, Marconi etc also sometimes followed this sleeving method. Multi-coloured wires were also starting to appear in the 50's & 60's, and again were often terminated with Hellerman or similar sleeving.
In post-war years, there was a shortage of civilian type wiring (vir etc) but a surplus of ex WD wiring, so that was often used in domestic radios. More confusion, eh!
An extra two-pennoth - a favourate bitch of mine - I hate the use of un-used valvebase connections as "tags" for randomally connecting components - in many domestic radios !
If a chassis needs re-wiring because of perished rubber wiring - I fit paxolin tagboards or stand-off pillars instead.
Regards, David
