1750E Transformer for Tube Guitar Amps

Fender (Harvard 5F10) (Princeton Brown, AA964, Blackface, Silverface) 

(Princeton Reverb AA1164, AA764, B1270, Blackface, Silverface)​

Note: See the 1760E for upgraded secondaries

Part Number



Amp Type


Plastic Bobbin or
Paper Wound Coil?

Model Names

Equivalent to
Manufacturer Part No.

1750E 5,482 8 Push-Pull 15 Bobbin

(Harvard 5F10) (Princeton Brown, AA964, Blackface, Silverface) (Princeton Reverb AA1164, AA764, B1270, Blackface, Silverface)

125A10B & 022913
  • Designed for drop-in replacement of original units.
  • Physically, parts were designed to look similar to original factory units (where possible).
  • Materials used & design specs. were kept as close as possible to the original part to preserve the stock "tone".
  • Output transformers marked UPGRADE (below) allow for more versatility by added secondary connections that did not exist on the original units.
  • Not what you're looking for? See this table for further help.

SKU 1750E
Brand Hammond
Shipping Weight 0.5700kg
Shipping Width 0.120m
Shipping Height 0.120m
Shipping Length 0.120m
Unit Of Measure ea

Used as a replacement part in a Laney LC 15R

By: on 12 November 2022
I used this audio transformer as a replacement for a faulty O/P tranny in a Laney 15 watt amp. It is pretty much a perfect match. The original one in the Laney had partially shorted on one side of the centre tapped HT. Very happy with the result.

Write a product review