Tube Output (50 - 100 Watts) 1650P Series

Push-Pull HI-FI Potted

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Features

  • Designed for push-pull tube output circuits.
  • A perfect match to our 300P potted power transformers.
  • Enclosed in a drawn steel case, the transformer is completely potted in epoxy.
  • Frequency response 30 Hz. to 30 Khz. at full rated power (+/- 1 db max. ref. 1 Khz) minimum.
  • Lead connection is via 10 bottom mounted lugs.
  • All units include 40% screen taps for Ultra-Linear operation (if desired).
  • Finished in a black powder paint (to match our 300P series power transformers).
  • Typical applications - Push-Pull: triode, Ultra-Linear pentode, pentode and tetrode connected audio output.

Gallery

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  • Secondary Connection - 4 Ohm  
  • Secondary Connection - 8 Ohm  
  • Secondary Connection - 16 Ohm  
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Part Details

Click Part No, below, for details (e.g., Product drawings, assembly instructions, ship weight)

Units shown: inch. Switch units to: mm

Part No. Audio Primary Impedance Max. DC Secondary Impedance Dimensions Weight
Watts (Ohms) Per Side (Ohms) A B C D E F G (lbs.)
1650KP 50 3400 ct 318 ma. 4/8/16 3.31 3.88 4.25 2.50 3.00 3.31 2.56 9
1650KAP 50 3400 ct 318 ma. 4/8/16 3.31 3.88 4.25 2.50 3.00 3.31 1/4-20 x 0.5" Deep Inserts 9
1650PAP 60 6600 ct 200 ma. 4/8/16 3.31 3.88 4.25 2.50 3.00 1.50 1/4-20 x 0.5" Deep Inserts 10
1650RP 100 5000 ct 317 ma. 4/8/16 4.25 5.00 4.50 3.38 4.25 4.50 3.75 13
1650RAP 100 5000 ct 317 ma. 4/8/16 4.25 5.00 4.50 3.38 4.25 4.50 1/4-20 x 0.5" Deep Inserts 13

Suggested Tube Types:

Part No. Audio Primary Impedance Suggested Tube Types
Watts (Ohms)
1650KP 50 3400 ct 6L6GC, 807, 5881, EL34, 6146B, 6550B
1650KAP 50 3400 ct 6L6GC, 807, 5881, EL34, 6146B, 6550B
1650PAP 60 6600 ct 6L6GC, 807, 5881, EL34, 6146B, 6550B, KT88
1650RP 100 5000 ct 807, 5881, EL34, 6146B, 6550B, KT88
1650RAP 100 5000 ct 807, 5881, EL34, 6146B, 6550B, KT88
Notes: The above examples of possible combinations are to help you narrow down the choices of transformers for your favorite tube types. How you operate the tubes (push-pull, push-pull parallel, ultra-linear, class, B+, bias, operating points, etc.) will change optimum plate to plate load impedance. Only a few of the most popular tubes are shown. As more tubes become available we will add them to the list. A tube manual or tube manufacturer's technical data sheets should be consulted first, before making a decision on a proper output transformer.

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Data subject to change without notice.