Hammond 1760H 20W Push-Pull Output Transformer for Deluxe Reverb
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Create Free Business AccountKey Features
- 20 W push-pull output transformer, 6,600 ohm C.T. primary
- 4, 8 and 16 ohm secondaries
- For Fender Deluxe, Deluxe 68 Custom Reverb, Deluxe Reverb 65 Reissue
- Similar to Fender P/Ns 125A1A, 022640, 041318
- Paper wound
- Frequency response 70Hz - 15KHz (0/-1dB), distortion under 1% at 70Hz
- Open style, all leads 9 in long minimum
- RoHS and REACH compliant
The 1760H is a 20 watt push-pull output transformer for tube guitar amplifiers, listed for the Fender Deluxe, Deluxe 68 Custom Reverb and Deluxe Reverb 65 Reissue, and similar to Fender part numbers 125A1A, 022640 and 041318. It is a drop in replacement suited to technicians and players maintaining Deluxe Reverb style amplifiers.
It is paper wound, with a 6,600 ohm center-tapped primary and 4, 8 and 16 ohm secondaries. Typical frequency response is 70Hz to 15KHz (0/-1dB referenced at 1KHz), with distortion below 1% at 70Hz. DC resistance is 347.8 ohms (primary brown-blue), 0.686 ohm (black-yellow), 0.803 ohm (black-green) and 1.157 ohm (black-white). The primary brown-blue measures 25.8H (157 K ohm) at 1.0 kHz, 1.0 V, with 12.30 mH leakage inductance. Dielectric strength is 1500VRMS and the temperature range is -40 to 105 degC.
Materials and design specifications follow the original part as closely as possible to preserve the stock tone. The open style transformer has leads at least 9 in long: brown, red (center tap) and blue on the primary; black (common), yellow (4 ohm), green (8 ohm) and white (16 ohm) on the secondary.
Drawing dimensions are A 3.688 in, B 2.400 in, C 2.308 in and D 3.125 in, with a 0.187 in slot. Shipping weight is 1.6 lbs (0.73 kg). The 1760H is RoHS and REACH compliant.
Ideal For
- Replacing the output transformer in a Fender Deluxe Reverb
- Deluxe 68 Custom Reverb and 65 Reissue repair
- 20 W push-pull tube amp builds
- Adding 4 and 16 ohm speaker options to a Deluxe Reverb
Overview
| Series | 1750 Series (Tube Guitar Amplifier - Output Transformers) |
| Product Type | Tube guitar amplifier output transformer |
| Manufacturer Description | Output transformer, guitar amp, 6,600 C.T. ohm pri., 4, 8, 16 ohm sec., 20W |
| Manufacturer Short Description | OUTPUT25WDELUX REVERB SEC=8OHM |
Dimensions
| Dimension A | 3.688 in ±0.063 |
| Dimension B | 2.400 in ±0.125 |
| Dimension C | 2.308 in ±0.063 |
| Dimension D | 3.125 in ±0.063 |
| Mounting Slot G | 0.187 in ±0.015 |
Electrical
| Distortion | Less than 1% @ 70Hz |
| Power Rating | 20 W |
| Primary Leads | BRN, RED (6600 C.T.), BLU |
| Amplifier Type | Push-Pull |
| Primary Impedance | 6,600 ohms C.T. |
| Frequency Response | 70Hz - 15KHz (0/-1dB reference @ 1KHz) |
| Dielectric Strength | 1500VRMS |
| Secondary Impedance | 4, 8, 16 ohms |
| DCR Primary Brown-Blue | 347.8 ohms |
| DCR Secondary Black-Green | 0.803 ohm |
| DCR Secondary Black-White | 1.157 ohm |
| DCR Secondary Black-Yellow | 0.686 ohm |
| Leakage Inductance Primary Brown-Blue (@ 1.0 KHz, 1.0 V SC) | 12.30 mH |
| Inductance / Impedance Primary Brown-Blue (@ 1.0 KHz, 1.0 V OC) | 25.8H / 157 K ohm |
Identifiers
| UPC | 623980252445 |
| UNSPSC | 39121301 |
Compatibility
| Fender Amps (Ref.) | Deluxe*, Deluxe 68 Custom Reverb*, Deluxe Reverb 65 Reissue* |
| Original Amp Manufacturer | Fender |
| Similar Fender P/N (Ref.) | 125A1A, 022640, 041318 |
Packaging & Shipping
| Shipping Weight | 1.6 lbs (0.73 kg) |
Construction & Finish
| Leads | All leads 9 in long minimum |
| Style | Open style |
| Appearance | Constructed to look similar to original factory units (where possible) |
| Winding Type | Paper |
| Design Intent | Designed for drop in replacement of original units |
| Materials & Design | Material used and design specifications kept as close as possible to the original part to preserve the stock "tone" |
Environmental & Protection
| Temperature Range | -40 to 105 degC |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
Does the 1760H fit a Deluxe Reverb?▾
The series table lists the Fender Deluxe, Deluxe 68 Custom Reverb and Deluxe Reverb 65 Reissue, similar to Fender P/Ns 125A1A, 022640 and 041318.
How is it different from the 1750H?▾
The 1750H has a single 8 ohm secondary; the 1760H provides 4, 8 and 16 ohm taps. Both are 20 W, 6,600 ohm C.T., paper wound.
What is the primary DC resistance?▾
347.8 ohms brown-blue.
What are the mounting dimensions?▾
A 3.688 in, B 2.400 in, C 2.308 in, D 3.125 in, with a 0.187 in slot.
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