THE GREAT MULLARD MAGIC BLOG — m
WHAT'S INSIDE A VALVE? (i)
Posted by STEVE M on
I thought I would write a series of blog articles on what is inside a valve. Famously, the head of Mullard UK, the ex-Philips SS Eriks once stated that the only British thing inside a Mullard valve was the vacuum and after I recently waffled on to some poor chap about electrode cage construction, pinches and getter flashing, they were bemused so I thought that I had better expand on the great Dutch master's scathing comment, so, without further ado, let's talk about......... what's in a valve.................................. The picture below shows a sectioned Mullard EL37 output pentode, as you can see, this...
- Tags: EL37, ELECTRODE CAGE, m, octal, pinch base, ss eriks