Quote:
Originally Posted by Heatercathodeshort
Quote:
Originally Posted by winston_1
I'll assume ECC84 is a typo. Mine has a PCC84. the 2 valve heaters are in series off a winding on the transformer.
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Hello Winston, There were probably minor change particularly around the mains transformer and rectifier. My version has a metal rectifier, ECC84 and ECF80 6.3V in parallel. The circuit shows E valves with a valve rectifier. The demand for these must have been incredible in 1955 and I suspect they encountered component supply difficulties. Everyone who owned a television in 1955 wanted the ITA [except old Aunt Heatherington Smythe.]
Another example does use the P range of valves and a metal rectifier. It has the EMI logo on it supplied by EMIs Sales and Service dept. Oddly it has an EMI serial number code H/19 50295. I also have a version with the McMichael logo. Aerialite must have supplied personalized versions to the manufacturers. Regards, John. |
Hi John, Makes sense that there were changes over the production run. My one is branded Aerialite and has P valves