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Need help with Jadis JA200

Hi, I recently acquired a pair of older Jadis JA200 with no manual. I want to replace 12AU7 and 12AX7 tubes on the amp but the tubes are so old that I could not really make out which is which. Does anyone has a manual or know the location of each tube on the amp? I wrote to Jadis asking for manual but no reply so far yet.

Thanks for your help.
suteetat

Showing 2 responses by tpsonic

tpsonic
1,092 posts
 
If going with the KT-88:Genelex re-issue or Shuguang 88-98 .The first may be a little more "midrangey" and sound more like the el34 in its'warmth.Have never been a big fan of the 6550 (Tunsols aside).They don't appear to be as "liquid" in the upper-octaves.IMO-YMMV.
tpsonic
1,092 posts
 
Gold Lion = Genelex re-issue.The "winged C"s were somewhat brittle in the highs.The JJs can be a firecracker-many difficulties and shipping them doesn't inprove things.The 88-98 is a little less "juicy" in that lower mids/upper bass range.Thus my suggestion for the Gold Lion;-)
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