Audio tube amplifier

The original design of this tube amplifier is 1930  created by Western Electric to sound movie theaters. Were enough the 10W to fill a good sized movie house through the use of speaker systems fitted with super-efficient high gain horns. In 1992 was published in an article in Sound Practices of Joe Roberts that catalysed the revival of WE91 to the delight of audiophiles.

I mounted this amp  based on clone made by Harald van Haaren’s TimeBandit: http://www.timebanditaudio.com/timebandit.html, one of several clones made after the Joe Roberts article.

300B and 5693 Tubes

 Electronic circuit

The complete file of the electronic circuit and construction details can be downloaded from download page.