Output transformer upgrade for the Fender® part numbers 125A35A, 125A3A, and 022905 as used in the:
Bronco (AA764, AB764, Blackface, Silverface)
Champ (Tweed, 5C1, 5E1, 5F1, AA764, Blackface, Silverface, Vibro Blackface)
Harvard (6G10)
Princeton (Tweed, 5B2, 5C2, 5D2, 5E2, 5F2, 5F2A)
This upgraded transformer features both 4 ohm and 8 ohm taps on the secondary.
the primary has two impedance options for lower voltage (5K) and higher voltage (8k) models.