Tag Archives: British Valve Association (BVA)

Grabbing the tiger by the tail, Harmonically speaking

Two recent demos of a new model, Mojave Sidewinder HG. HG standing for high gain. The trick is to create a rich enough sound to make a single coil bridge position pickup on a Fender Srtat sound rich with 3rd order harmonics and not allow the 2nd order to get dominant. Distortion or square wave distortion raise the bass side … Continue reading

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Block end Script logo JTM45 serial # 1877

One of my favorite JTM45’s because the block ends provided a stronger version of the chassis. This particular series was frequently found to have slightly higher internal high voltage, this created a little more power and dynamic range.

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Marshall JTM45 circa ’64 Clapton version serial # 1002

This is the Clapton edition, all the trimmings. Factory stock, all parts working perfectly. Part of the David Kronemyer collection.  Radio Spares transformers. 1964 model as is the case all of the capacitors were reconstituted and revitalized so they can be used safely.

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Investment Grade JTM 45 available from Mojave

This is a very rare 1964 JTM45 first series, all original. Investment grade, collectors quality. This amp comes from the David Kronemyer collection, former Senior Vice President of Capital Records. It was in the studio for over 20 years and hadn’t been turned on in the past 10 years.  It is the last of the Kronemyer collection being released. 

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Philip Mulard, The manufacture of radio valaves

This is an excellent three part film on the manufacture of thermonic vacuum tubes.

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Mullard Vacuum tube manufacturing film

The Blackburn Story

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G.E.C. Marconi Osram/ Genalex. c. 1930 film

Rare film on the manufacture of the G.E.C. Vacuum Tube

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