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THE GREAT MULLARD MAGIC BLOG

MORE ON VALVE VIBRATION!

Posted by STEVE M on

MORE ON VALVE VIBRATION!

Well, today, I had an e-mail from an 'expert' on valve vibration.  He attempted to 'correct' my last blog entry  but rather than telling him to buzz off, I thought I would clarify matters a little further in my own 'non expert' way My last blog entry dealt with an example of swept frequency sinusoidal microphonic testing where the gross effects of vibration on valve performance was being assessed at typical conditions potentially found in an accelerating aerial shell. There existed a number of direct excitiation methods of measuring the affect of vibration on valves and for completeness, I will describe just one which is...

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A MULLARD DUMMY!

Posted by STEVE M on

A MULLARD DUMMY!

Well, look at this,  I have known quite a few dummies, some of them even like valves..... and radios!!!!!!!   But the only Mullard dummy I had ever seen before was my reflection looking back at me from the mirror - haha - that was a Mr. Mullard Magic joke. I wonder, was this just an empty space box filler?   Maybe  a delve through the Mullard archive I have here may tell me or even one of you customer type people may know the secret.

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DON'T KILL YOUR WIFE WITH WORK.....

Posted by STEVE M on

DON'T KILL YOUR WIFE WITH WORK.....

How, I tittered when I saw this little homily, and, quite appropriate today as it's Mrs Mullard Magic's birthday!

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ITS A GOOD JOB THAT AC COSSOR ARE NO LONGER IN BUSINESS AS AN 87 YEAR OUTSTANDING APOLOGY IS LONG OVERDUE!

Posted by STEVE M on

ITS A GOOD JOB THAT AC COSSOR ARE NO LONGER IN BUSINESS AS AN 87 YEAR OUTSTANDING APOLOGY IS LONG OVERDUE!

I smiled wryly when I read about David Byrne the other day.  As some of you know he was the frontman for the Talking Heads, the New Wave American rock band. Apparently poor David is full of remorse and has apologsed for wearing black and brownface in an unearthed promotional video, calling it a "major mistake in judgement." In the clip for the rock band's concert film 1984 "Stop Making Sense," the star is shown interviewing himself, while donning black and brown face to impersonate several non-White people.  The 68-year-old musician took to social media on Tuesday 1st September 2020...

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COMPONENTRY GIVES RISE TO FEMININE ELECTRICKERY -

Posted by STEVE M on

COMPONENTRY GIVES RISE TO FEMININE ELECTRICKERY -

How I smiled when I saw this pulp magazine cover from 1966.   Bet you never got a blue print for this particular project free with Wireless World and interestingly, from the 'dolly's' midriff trap door she seems to be solid state - unless there are a nice pair of   output beam tetrodes situated a little higher up - could that be a brace of 807s as I am sure I can see some top caps.  Wonderful stuff indeed.

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