Bottlehead Forum

Bottlehead Kits => S.E.X. Kit => Topic started by: -Russian-Spy- on September 01, 2019, 03:48:30 PM

Title: One tube glows brighter than the other
Post by: -Russian-Spy- on September 01, 2019, 03:48:30 PM

  I recently completed the project, however one tube does glow a bit brighter than the other, is this normal? The amplifier passed all resistance and voltage checks

Title: Re: One tube glows brighter than the other
Post by: Paul Birkeland on September 01, 2019, 04:31:04 PM

Yes, this is a normal variation in tube production.  There's a cathode sleeve over the glowing part, and it's made much longer than it needs to be, but it doesn't always get positioned in exactly the same position.