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...

WHAT'S INSIDE A VALVE? (i)

WHAT'S INSIDE A VALVE? (i)

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...

WHAT'S INSIDE A VALVE? (i)

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...

BUILDING THE MULLARD HIGH SPEED VALVE TESTER

BUILDING THE MULLARD HIGH SPEED VALVE TESTER

These were selling like hot cakes in 1951 and details of their build and performance featured in much of the Mullard official literature of the time. Here we see Arnold...

BUILDING THE MULLARD HIGH SPEED VALVE TESTER

These were selling like hot cakes in 1951 and details of their build and performance featured in much of the Mullard official literature of the time. Here we see Arnold...