Typical Radiospares transformers and specs back in the day:
http://www.electrojumble.org.uk/DATA3/RS...s_1967.pdf
It's possible that the green, blue, white is 6.3 volts and 5 volts with a common connection, if so then that would be the rectifier heater windings, eg: for a 6.3 volt heater rectifier or 5 volt heater rectifier, that would make the two greys a separate 6.3 volt winding for the amplifying valves. ie: the 6th specification on page 2 in the link.
Lawrence.
http://www.electrojumble.org.uk/DATA3/RS...s_1967.pdf
It's possible that the green, blue, white is 6.3 volts and 5 volts with a common connection, if so then that would be the rectifier heater windings, eg: for a 6.3 volt heater rectifier or 5 volt heater rectifier, that would make the two greys a separate 6.3 volt winding for the amplifying valves. ie: the 6th specification on page 2 in the link.
Lawrence.
