Protecting Silkscreen

Protecting Silkscreen

If you have tubes that have a fragile silkscreen (practically all old stock tubes) and you put them in boxes, the silkscreen will be rubbed off every time you take the tube out of the box to use it or just to look at it :). To save the beautiful silkscreen from wearing off, just use a small plastic bag. I use 2×3 inch bags I get from Amazon. Put the tube inside the back and then insert the tube back into a box. It fits even very tight fitting boxes. Now you can take out the tube without being afraid that it will be damaged.

Share this post:

A brief history of 12ax7 tubes

A brief history of 12ax7 tubes

The 12ax7 tube is arguably the most popular audio vacuum tube that has ever been created. It’s popularity is driven by use in many Hi-Fi tube amplifiers and especially guitar amplifiers, where it’s pushed really hard and burns out fairly quickly. Introduced in May of 1947, the tube gained almost immediate popularity due to its very high gain – mu: 100, so it amplifies voltage 100x! Although I’ve seen JJ and Sovtek 12ax7 tubes go as high as 115, but that’s not up to spec.

Continue reading
Share this post: