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Originally Posted by soundseeker  CAN someone explain the difference between a 176 and a 176b. Is it the same thing??? |
If you're asking about the original UA model numbers, there is some excellent information on them here:
Service / restore your Universal Audio UA 175 176 or 177
"The 175-A had stepped input and output attenuators, along with vernier controls for fine adjustment of In/Out levels. The hinged front panel dropped down to reveal Attack and Release time controls, along with calibration pots for GR Zero, Cathode Balance, and Plate Balance.
The 175-B moved the Attack and Release controls out to the front panel. With the inside control panel removed, a slightly shallower chassis was used. (The unit we're restoring has Langevin balanced pots on the input and output, instead of the stepped attenuators.)
The UA 176 added a gain reduction selector switch, with 2:1, 4:1, 8:1, and 12:1 settings. An unusual output transformer with balanced taps allowed the different ratios.
The UA 177 was just like the 176, but included no meter on the front panel. The rear terminal strip has connections for an external VU meter."