MH
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Post by MH on May 7, 2013 11:10:57 GMT -7
I have a mid 90's Maz 38 Invasion with the FX loop. My amp has 11 tubes. All of the tube information I've found online and on the Z site has the layout for 10 tubes. Can anyone provide a tube chart or tell me what the tube complement should be in this amp? Thanks, Mike
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Deleted
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Post by Deleted on May 7, 2013 13:25:43 GMT -7
Dr. Z gives the tube layout for a Studio Lead. Here's a good tube layout V1 is directly behind the input jack: V1= JJ 12AX7 V2= JJ 12AX7 V3= JJ 12AT7 V4= Sovtek 12AX7 WB V5= Any good 12AU7 maybe NOS they are available cheap. V6= Sovtek 12AX7 LPS V7-V10= JJ EL-84 Medium grade V11= Sovtek 5AR4 If this is wrong for your amp someone will correct me. Read more: ztalk.proboards.com/thread/56449/where-all-clean-headroom-help#ixzz2Sdllle9P
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MH
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Post by MH on May 7, 2013 14:07:57 GMT -7
Thanks for the info! The 12AU7 makes sense as the FX loop driver. Mine has a 12AX7 in the V5 position right now. That explains why the amp was so much louder when I used a jumper in the loop.
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Deleted
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Post by Deleted on May 7, 2013 21:56:54 GMT -7
Glad I could help.
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Post by Jaguarguy (Mike) on May 8, 2013 20:05:12 GMT -7
Welcome to the Forum - a lot of great info and people here! Got any pics of the Invasion?
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Post by Burnsy on May 25, 2013 6:03:00 GMT -7
I need to tweak my old Invasion a bit. It's the amp I'll never sell, yet it's been feeling lonely lately. Maybe I'll try a tube swap...
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MH
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Post by MH on Jun 10, 2013 10:55:52 GMT -7
Update -- I put a NOS RCA 12AU7A/ECC82 in V5. The amp sounds great now and the effects loop is working like it should.
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Deleted
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Post by Deleted on Jun 10, 2013 11:38:11 GMT -7
Update -- I put a NOS RCA 12AU7A/ECC82 in V5. The amp sounds great now and the effects loop is working like it should. That's great news!
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