Hammond 1650RP 100W 5K Ohm CT Potted Push-Pull Output Transformer
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224-955-1644Key Features
- 100 W push-pull, 5000 ohm CT primary
- 317 mA maximum DC per side
- Suggested tubes: 807, 5881, EL34, 6146B, 6550B, KT88
- 4/8/16 ohm secondary; 40% screen taps for Ultra-Linear
- Drawn steel case potted in epoxy, black powder paint
- 30 Hz to 30 kHz at full rated power, +/- 1 dB max.
The 1650RP is a 100 watt push-pull hi-fi output transformer from the 1650P potted series. Its 5000 ohm centre-tapped primary is rated at 317 mA DC per side, and the secondary impedance is listed as 4/8/16 ohms. The manufacturer short description is "Audio TX 5K Ohm 100 Watt Pott".
Suggested tube types are 807, 5881, EL34, 6146B, 6550B and KT88. Like all units in the series, it includes 40% screen taps for Ultra-Linear operation if desired, and typical applications are push-pull triode, Ultra-Linear pentode, pentode and tetrode connected audio output. As the manufacturer notes, how you operate the tubes changes the optimum plate-to-plate load, so tube data should be consulted first.
Series construction applies: the transformer is enclosed in a drawn steel case, completely potted in epoxy, and finished in black powder paint to match the 300P series power transformers. Rated frequency response is 30 Hz to 30 kHz at full rated power, +/- 1 dB max. (ref. 1 kHz) minimum.
- Dimensions: A 4.25 in (108 mm), B 5.00 in (127 mm), C 4.50 in (114 mm), D 3.38 in (86 mm), E 4.25 in (108 mm), F 4.50 in (114 mm), G 3.75 in (95 mm)
- Weight: 13 lbs (series table); shipping weight 18 lbs (8.16 kg)
- UPC 623980301846; RoHS and REACH compliant
Ideal For
- 100 W push-pull KT88 or 6550B amplifiers
- EL34 or 807 push-pull output stages
- Ultra-Linear pentode hi-fi output
- Builds paired with 300P potted power transformers
Overview
| Series | 1650P Series, Tube Output (50 - 100 Watts), Push-Pull HI-FI Potted |
| Typical Applications | Push-pull: triode, Ultra-Linear pentode, pentode and tetrode connected audio output |
| Manufacturer Short Description | AUDIO TX 5K OHM 100 WATT POTT |
Dimensions
| Dimension A | 4.25 in (108 mm) |
| Dimension B | 5.00 in (127 mm) |
| Dimension C | 4.50 in (114 mm) |
| Dimension D | 3.38 in (86 mm) |
| Dimension E | 4.25 in (108 mm) |
| Dimension F | 4.50 in (114 mm) |
| Dimension G | 3.75 in (95 mm) |
Electrical
| Audio Power | 100 W |
| Screen Taps | 40% screen taps for Ultra-Linear operation (if desired) |
| Primary Impedance | 5000 ct ohms |
| Maximum DC Per Side | 317 ma. |
| Secondary Impedance | 4/8/16 ohms |
| Rated Frequency Response | 30 Hz to 30 kHz at full rated power (+/- 1 dB max., ref. 1 kHz) minimum |
Identifiers
| UPC | 623980301846 |
| UNSPSC | 39121301 |
| Part Number | 1650RP |
Packaging & Shipping
| Shipping Weight | 18 lbs (8.16 kg) |
| Unit Weight (Series Table) | 13 lbs |
Construction & Finish
| Case | Drawn steel case, completely potted in epoxy |
| Finish | Black powder paint (to match 300P series power transformers) |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
What is the 1650RP rated for?▾
100 W, with a 5000 ohm CT primary at 317 mA maximum DC per side and a 4/8/16 ohm secondary.
Which tubes are suggested?▾
807, 5881, EL34, 6146B, 6550B and KT88.
How is it constructed?▾
The series is enclosed in a drawn steel case, completely potted in epoxy and finished in black powder paint.
What are its dimensions?▾
A 4.25 in, B 5.00 in, C 4.50 in, D 3.38 in, E 4.25 in, F 4.50 in and G 3.75 in.
How much does it weigh?▾
The series table lists 13 lbs; the shipping weight is 18 lbs (8.16 kg).
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