05-10-2014, 07:58 PM
I have no first claim to the source below, it tunes around 90 Mhz I think, sure looks like a ECH something, I don't reckon the ECH21 would go that high so maybe it's an ECH22/CV302.
http://downloads.bbc.co.uk/rd/pubs/reports/1951-05.pdf
Lawrence.
http://downloads.bbc.co.uk/rd/pubs/reports/1951-05.pdf
Lawrence.







