2. amps-preamps
  3. 1102018440

Rectifier tubes?

I have an Air Tight HTM-300 amp which has tube rectification. I've rolled a number of NOS types over the last three years and am wondering two things: 1) How long a life do these tubes have, in general, and 2) Any suggestions for good rec. tubes (5U4GB) in this amp or in general? I'd especially be interested in new tubes as NOS are hard to get and are iffy.
tomryan

Showing 1 response by jake42

jake42
3 posts
 
I'm kinda new at this so if what I say isn't true, somebody jump in and say so.

I have an Audio Note Kit 1. The biggest change I have noticed so far was going from a Raytheon 5U4gb to a 2/59 US Army Coke bottle RCA 5U4G

I think the 5U4G and 5U4GB are interchangeable

I also like the JAN Sylvania 5931. This is also one of the coolest looking tubes I have. This sucker has 3 micas and a "girder" in it. Huge base also.

jp
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