THE GREAT MULLARD MAGIC BLOG

WHAT'S INSIDE A VALVE? (ii)

WHAT'S INSIDE A VALVE? (ii)

Continuing our journey to look at what's inside a valve, today we are going to look a little further at our EL37 pentode with the envelope broken open.  After a...

WHAT'S INSIDE A VALVE? (ii)

Continuing our journey to look at what's inside a valve, today we are going to look a little further at our EL37 pentode with the envelope broken open.  After a...