I would guess so Peter, but I doubt I would get my hands on one of their TV's to look for myself.
This page https://www.radiomuseum.org/m/rainbowrad...~year.html suggests that the company could have been around from 1936'ish and also supplied a Band 3 converter in 1955.
Looking at another publication the Rainbow radio Manufacturing Co was in Chapel Street works Blackburn in 1937. So they certainly seem to have been around for some time.
There is certainly very little left of any original buildings in that area as new retail shops and road network changes have occurred in the past 10 years.
Adrian
This page https://www.radiomuseum.org/m/rainbowrad...~year.html suggests that the company could have been around from 1936'ish and also supplied a Band 3 converter in 1955.
Looking at another publication the Rainbow radio Manufacturing Co was in Chapel Street works Blackburn in 1937. So they certainly seem to have been around for some time.
There is certainly very little left of any original buildings in that area as new retail shops and road network changes have occurred in the past 10 years.
Adrian
Learning as I go!
Youtube EF91 Valve
Youtube EF91 Valve
