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6922 Electro-Harmonix
Our Price: $20.00
Dual rectifier tube used in the Variable Mu® Limiter. Used in the Steelhead. TWO PER CHANNEL ARE USED IN THE MANLEY VARIABLE MU T-BAR MOD.
12BH7A EH
Our Price: $25.00
LOW STOCK
Was used in the Variable Mu®, Shrimp, Snappers, and Steelhead.
New units shipping with 5687 NOS instead.
Used as the driver tubes in Neo-Classic 250 and Neo-Classic 500 Watt monoblocks. Each monoblock uses two 12BH7 tubes. same as 12AU7 or ECC82 used in older Manley Pultecs and Manley ELOP limiters
12AT7 "MIC GRADE"
Our Price: $50.00
This 12AT7 is specially selected for ultra low-noise to be used in Manley microphones with a “T” in the serial number. A super quiet 12AX7 Mic Grade may also be used.

For regular standard grade 12AT7 use Tube-23 standard grade instead.
aka 12AU7 or 5814 or ECC82
These are large smooth plate EI tubes made in Nis, Yugoslavia early 1990's production  
Various older Manley products such as Manley ELOP or Manley Pultec EQs used 12AU7's as the gain tube.