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UL?

AuthorMessage
 

dbillups
Posted on Friday, October 11, 2002 - 11:08 am:   

I have noticed that some chassis numbers are followed by UL. Of 4 2275-65 units in my shop 1 has UL after the 2275-65(a 112-65 vs 2 210-65's and a 65 rev. head). A 2100-65 had the UL following the chassis number. All mentioned here are 12ax7 types.
Any thoughts anyone?
Dick
Gabriel
Posted on Thursday, April 08, 2004 - 04:28 am:   

My HD130 Reverb has the UL after the chasis number and it too has a 12AX7 pre amp.
Chasis # 2275-130-UL