THE GREAT MULLARD MAGIC BLOG

Here we see a wonderful evocative photograph of operator Dabney Grimble attending to CRT bulbs at Mullard Mitcham. Pictured is the manufacturing stage where the neck tube has just been welded to the bulb.  To avoid heat induced stress at the weld junction, the bulbs are placed in an annealing furnace for 150 minutes along a graduated tunnel furnace which controlls the rate of glass cooling.   The bulbs travel by carrel to the annealing furnace whilst suspended in a vacuum chuck which is kept at the same temperature as the bulb to prevent breakage.    Placement of the vacuum...

Really....... Well whatever did you expect????   Obviously it wasn't the soldering iron shown here in a 1957 advert - I'll bet this little number outsold a staid Solon - Henley, or Adcola at a ratio of 100:1 For those of you who were expecting a nice expose (in more ways than one) on Mena Suvari or some other American sweetie, I am sorry to disappoint you. For those of you that do not understand the above reference, it relates to American Beauty, the 1999 American film, directed by Sam Mendes and written by Alan Ball in which Kevin Spacey stars as Lester Burnham,...

Now then, stand to attention as it is time for you to take your medicine!  The Mullard Magic nurse has just published an article in The Lancet citing irrefutable proof that buying items from the Mullard Magic website is good for MY health so please, do more buying - tee hee.      Seriously though, we at Mullard Magic are proud to have supplied items to help a very keen group of 1940s re-enactors in their quest for originality not only in dress and accoutrements but also in the subject of their re-enactment - their wartime wedding re-enactment is not...

At the time of introduction, two 'hollow state' devices the MHSVT contained were considered exotic.   The first, the 85A1 voltage regulator is a neon filled reference two electrode device which serves to provide the MHSVT with it's reference voltage stable in normal useage to 0.17% variance and over it's entire life. stable to within 0.5% of nominal value.     The second is the DG7/5 cathode ray tube which is an electrostatic medium persistance tube .    What is interesting is that this CRT is used in this application purely as a voltage indicator, measuring various currents by means...

Greetings fellow radio and thermionic people!   Here I am finding myself sated with turkey and Christmas pud in a state of mellifluous fugue after hitting the seasonal sweet sherry so I thought I would write a blog entry. Talking of seasonal fugue, my Mother in Law, the Honourable Dowager Duchess June, even after mine & Mrs Mullard Magic's 30 years of marriage STILL hasn't learnt the error of her ways in forcing me to eat a plateful of sprouts every year on this very day.   As if these things aren't terrible enough, they certainly are after being boiled...