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Why Tubes?
Why thermionic electron emission devices (valves to our friends in the UK)? Well, I grew up listening to my LPs, cassettes, and the radio through a 6V6GT push-pull instrument amplifier and eventually...
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Tube Fluorescence
These are the output tubes on my Thomas amp. You can see the blue glow against the glass from stray electrons. This is very common with Sylvania tubes. Behind the blue glow, is the red glowing line...
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Tubelab SE Breadboard
So I’ve finally built-up this Tubelab SE, a small, single-ended, 2 watt amp. It’s currently in breadboard form, but it sounds amazing. Awesome detail, impressive bass, and something warm about the sound.
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Tubelab Simple SE Breadboard
With the right iron, the Tubelab Simple SE comes to life. After a sanity-check with cheap Chinese tubes, here is the amp running with JJ 6L6GCs strapped as triodes. The amp sounds sweet with a bit more...
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Tubelab SE Breadboard with 300Bs
With a custom power transformer from Edcor, I could finally try this amp with some borrowed 300Bs. This transformer’s primary is tapped so that it can be used with either 300Bs or 45s: XPWR131 -...
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Tubelab Simple SE Chassis Fitting
All of the cutting and milling and drilling is finally done. Here are all the various bits and pieces, made mostly from scraps, all put together: More about the build here. Next step is paint….
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Tubelab Simple PP
George from Tubelab was kind enough to send me his latest PCB and some iron for a test build. Easy build and the result was tossed into a disused lock box.
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