Hammond 1750H 20W Fender Guitar Amp Output Transformer

Best for

Evidence-matched replacement or restoration work in a push-pull Fender Deluxe-family tube amplifier that matches Hammond's listed cross-reference, 6,600-ohm centre-tapped primary, 8-ohm load, 20 W rating, dimensions, mounting pattern and lead arrangement.

Who should skip

Skip it if the amplifier revision, circuit topology, primary or speaker impedance, power requirement, chassis dimensions, mounting centres or lead routing do not match the Hammond drawing and cross-reference, or if qualified high-voltage installation is unavailable.

Watchouts

Tube amplifiers can retain lethal voltage after power is disconnected. Installation must be performed by a qualified technician using safe capacitor-discharge and verification procedures. Never substitute on model name alone; verify circuit topology, impedance, load, power, mounting and lead connections. The Hammond part page's abbreviated short description contains '25W', while its detailed specification and drawing rate 1750H at 20 W; this catalog uses the detailed 20 W rating.

Likely add-ons

• qualified tube-amplifier technician and high-voltage-safe service equipment
• application-appropriate mounting hardware; confirm inclusion and chassis fit
• a push-pull circuit and speaker load matching the 6,600-ohm centre-tapped primary and 8-ohm secondary

Verify before buying

• Does the exact amplifier revision cross-reference Fender 125A1A, 022640 or 041318, or otherwise match the Hammond 1750H drawing?
• Does the circuit require a 6,600-ohm centre-tapped push-pull primary, 8-ohm secondary and 20 W output rating?
• Do the chassis, 3.130-inch drawing dimension, 0.187-inch mounting holes and minimum 9-inch lead routing fit without modification?
• Is a qualified technician equipped for lethal-voltage tube-amplifier service performing the installation?