TNT Mic Pre Retube Kit Version A
This kit is only for Manley TNT MIC PRE's with the serial number falling between MTNT000 - MTNT0231. Includes (1x) 12AT7 tube for input, and (1x) 6414 or 12BH7 tube for driver output. If your unit has a 6414 and you're switching to a 12BH7 (or vice versa) you will need to recalibrate your unit - please refer to your manual on how to do so. Be aware that some tube brands are subject to change over time and may not match the pictures shown.