UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Marconiphone VT55A

Heatercathodeshort · 5th Oct 2019, 8:38 pm

The Plessey chassis is very reliable and they must have wanted something that worked for more than a week after the 1807 saga!
Unfortunately the Mazda CRM121B fitted in these chassis had a very poor life. The good news is that the large mains transformer has heater taps for all the reliable tubes. You can fit virtually any 12" tube in this chassis. John.

5th Oct 2019, 8:38 pm	#6
Heatercathodeshort Dekatron Join Date: Jun 2005 Location: Warnham, West Sussex. 10 miles south of DORKING. Posts: 9,147	Re: Marconiphone VT55A - any info? The Plessey chassis is very reliable and they must have wanted something that worked for more than a week after the 1807 saga! Unfortunately the Mazda CRM121B fitted in these chassis had a very poor life. The good news is that the large mains transformer has heater taps for all the reliable tubes. You can fit virtually any 12" tube in this chassis. John.