Hammond 1616 15W 7.6K-to-16 Ohm Push-Pull Output Transformer
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Create Free Business AccountKey Features
- 15 W RMS push-pull, 7,600 ohm CT primary
- Single 16 ohm secondary
- 100 mA maximum DC per side
- 40% screen taps for Ultra-Linear operation (per drawing)
- 30 Hz to 30 kHz at full rated power, +/- 1 dB max.
- Typical 275 H primary inductance at 60 Hz, 2000 Vrms dielectric
- Enclosed shielded case with 4 slot Type "X" mounting
The 1616 is a 15 watt (RMS) push-pull hi-fi output transformer with a single 16 ohm secondary, unlike its multi-tap siblings in the 1608A-1650A family. It is intended for push-pull tube output circuits, with a 7,600 ohm centre-tapped primary rated at 100 mA DC per side.
Its drawing describes the typical applications as push-pull triode, Ultra-Linear pentode, pentode and tetrode connected audio output, and notes included 40% screen taps for Ultra-Linear operation if desired. Rated response is 30 Hz to 30 kHz at full rated power, +/- 1 dB max. referenced to 1 kHz.
Typical electrical data from the drawing, measured at 60 Hz: primary DCR 82.40 ohms (Yellow-Red) and 96.60 ohms (Red-Blue), secondary DCR 0.180 ohm (Black-Green), primary inductance 275 H with 130 kOhm impedance, and 10.80 mH leakage inductance. Dielectric strength is 2000 Vrms and the temperature range is -40 to 105 C.
The 1616 is enclosed (shielded) for 4 slot, above chassis Type "X" mounting, with plastic coil forms and insulated flexible leads of 8" minimum. Dimensions are A 2.50 in, B 3.50 in, C 3.06 in, D 2.00 in and E 2.50 in, with 0.20 x 0.38 in slots (drawing: 0.203 x 0.375 in). The series table weight is 3.5 lbs and the shipping weight is 2.5 lbs. Made in Canada; RoHS and REACH compliant.
Ideal For
- Push-pull amplifiers driving 16 ohm loudspeakers
- Ultra-Linear pentode output stages
- Triode connected push-pull audio output
- Tetrode connected push-pull stages
Mounting
| Mounting Style | 4 slot, above chassis Type "X" mounting |
| Mounting Slot G | 0.20 in (5 mm) x 0.38 in (10 mm) |
| Mounting Slot (Drawing) | Ø0.203 x 0.375 in |
Overview
| Series | 1608A-1650A Series, Tube Output (10 - 280 Watts) Easy Wire Secondary, Push-Pull HI-FI |
| Typical Applications | Push-pull: triode, Ultra-Linear pentode, pentode and tetrode connected audio output |
| Manufacturer Description | Output transformer, push-pull, 15W , primary 7,600 ct, 100 ma., secondary 16 |
| Manufacturer Short Description | HIFI AUDIO OUTPUT |
Dimensions
| Dimension A | 2.50 in (64 mm) |
| Dimension B | 3.50 in (89 mm) |
| Dimension C | 3.06 in (78 mm) |
| Dimension D | 2.00 in (51 mm) |
| Dimension E (+/- 1/16") | 2.50 in (64 mm) |
| Drawing Dimensions (A X B X C X D X E) | 2.500 in ±0.063 x 3.500 in ±0.125 x 3.060 in ±0.063 x 2.000 in ±0.063 x 2.500 in ±0.063 |
Electrical
| Screen Taps | 40% screen taps for Ultra-Linear operation (if desired) |
| Audio Power (RMS) | 15 W |
| Primary Impedance | 7,600 ct ohms |
| Maximum DC Per Side | 100 ma. |
| Secondary Impedance | 16 ohms |
| Rated Frequency Response | 30 Hz to 30 kHz at full rated power (+/- 1 dB max., ref. 1 kHz) minimum |
Identifiers
| UPC | 623980143002 |
| UNSPSC | 39121301 |
| Part Number | 1616 |
Packaging & Shipping
| Shipping Weight | 2.5 lbs (1.13 kg) |
| Unit Weight (Series Table) | 3.5 lbs |
Construction & Finish
| Leads | Insulated flexible leads, 8" min. |
| Enclosure | Enclosed (shielded) |
| Coil Forms | Plastic coil forms for coil support and insulation |
| Lead Colour Code | GRN, BLK (secondary); YEL, RED/YEL, RED, BLU/YEL, BLU (primary) per drawing |
Environmental & Protection
| Temperature Range | -40 to 105 C |
| Dielectric Strength | 2000 Vrms |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
| Country Of Origin | Made in Canada |
Electrical (Typical, Drawing)
| Output Power | 15 Watts |
| Input Impedance | 7600 Ohms |
| Output Impedance | 16 Ohms |
| DCR (Primary Red-Blue) | 96.60 Ohms |
| DCR (Primary Yellow-Red) | 82.40 Ohms |
| DCR (Secondary Black-Green) | 0.180 Ohm |
| Impedance (Primary Blue-Brown, @ 60 Hz, 10.0 V OC) | 130 kOhm |
| Inductance (Primary Blue-Brown, @ 60 Hz, 10.0 V OC) | 275 H |
| Leakage Inductance (Primary Blue-Brown, @ 60 Hz, 10.0 V SC) | 10.80 mH |
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Frequently Asked Questions
Does the 1616 have 4 and 8 ohm taps?▾
No. Its secondary impedance is listed as 16 ohms only.
What primary impedance does it have?▾
7,600 ohms centre-tapped, rated for 100 mA DC per side.
Can it be used Ultra-Linear?▾
The drawing states it includes 40% screen taps for Ultra-Linear operation if desired.
What does it weigh?▾
The series table lists 3.5 lbs; the part page shipping weight is 2.5 lbs (1.13 kg).
What are the typical winding resistances?▾
Primary Yellow-Red 82.40 ohms, primary Red-Blue 96.60 ohms and secondary Black-Green 0.180 ohm.
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