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

Heatercathodeshort · 10th Oct 2015, 9:23 pm

That is an absolute cracker David. The Mazda 30PL1 is a very good valve and puts the Mullard PCL83 to shame. They gave so much trouble in the Pye television receivers that they used up what stock they had in the 'Black Box' record players. They even produced a special mains transformer for the job. They must have had thousands!

A good soak test should sort out any minor problems but I'm sure you will easily solve them.

That picture takes me back. As I mentioned, we had the 17" version back in the 50's. Very rarely broke down until the tube went partial S/C heater.
This was almost as bad as the Mazda problem with H/C shorts but did not appear to create the upset that Mazda quite rightly suffered.

Regards, John.

10th Oct 2015, 9:23 pm	#46
Heatercathodeshort Dekatron Join Date: Jun 2005 Location: Warnham, West Sussex. 10 miles south of DORKING. Posts: 9,147	Re: Ferguson 247T: huge console TV set. That is an absolute cracker David. The Mazda 30PL1 is a very good valve and puts the Mullard PCL83 to shame. They gave so much trouble in the Pye television receivers that they used up what stock they had in the 'Black Box' record players. They even produced a special mains transformer for the job. They must have had thousands! A good soak test should sort out any minor problems but I'm sure you will easily solve them. That picture takes me back. As I mentioned, we had the 17" version back in the 50's. Very rarely broke down until the tube went partial S/C heater. This was almost as bad as the Mazda problem with H/C shorts but did not appear to create the upset that Mazda quite rightly suffered. Regards, John.