The 2A3 has been used in hi-fi systems as long as there have been hi-fi systems. It’s a tricky tube to get right, but we ...

Culminating a year-long project, [Usagi Electric] aka [David] has just wrapped up his single-bit vacuum tube computer. It is based on the Motorola MC14500 1-bit industrial controller, but since ...

5U4 tubes are now available in the Ray Tubes SELECT Collection. Vacuum tube company expands line-up with new-production 5U4 rectifier tubes in its SELECT Collection Rectifiers like the 5U4 aren ...

5U4 tubes are now available in the Ray Tubes SELECT Collection. Vacuum tube company expands line-up with new-production 5U4 rectifier tubes in its SELECT Collection Rectifiers like the 5U4 aren ...

5U4 tubes are now available in the Ray Tubes SELECT Collection. Vacuum tube company expands line-up with new-production 5U4 rectifier tubes in its SELECT Collection Rectifiers like the 5U4 aren ...

5U4 tubes are now available in the Ray Tubes SELECT Collection. Vacuum tube company expands line-up with new-production 5U4 rectifier tubes in its SELECT Collection Rectifiers like the 5U4 aren ...

It began innocently enough when he saw [Usagi Electric]’s single bit computer vacuum tube computer, which uses dozens of vacuum tubes. He got to wondering, could you make vacuum-tube-like ...

In today's world, vacuum tubes or radio valves seem as dead as high button shoes and buggy whips, but DARPA sees them as very much the technology of the future. As part of a new program, the ...

The SELECT 6SL7 joins the Ray Tubes SELECT Collection lineup. Vacuum tube company expands line-up with new-production 6SL7 ...

5U4 tubes are now available in the Ray Tubes SELECT Collection. Vacuum tube company expands line-up with new-production 5U4 rectifier tubes in its SELECT Collection Rectifiers like the 5U4 aren ...

5U4 tubes are now available in the Ray Tubes SELECT Collection. Vacuum tube company expands line-up with new-production 5U4 rectifier tubes in its SELECT Collection Rectifiers like the 5U4 aren ...