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Output-Push-Pull Ultra Linear - Potted

 

 

Key Features

 

  • Designed for push-pull tube output circuits.
  • 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.

 

Part Number

(click for price

and to order)

Audio
Watts

Primary Impedance
(Ohms)

Max. DC Per Side

Secondary Impedance
(Ohms)

Weight
(lbs.)

1650KAP 50 3400 ct
318 ma.
4/8/16 9
1650PAP 60 6600 ct
200 ma.
4/8/16 10
1650RAP 100 5000 ct
317 ma.
4/8/16 13

 

Suggested Tube Types

Part Number

Audio
Watts

Primary Impedance
(Ohms)

Suggested Tube Types

1650KAP 50 3400 ct 6L6GC, 807, 5881, EL34, 6146B, 6550B
1650PAP 60 6600 ct 6L6GC, 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.

 Mechanical Data

Top View 

 

Bottom View 

 


Part Number

Dimensions
(Inches)

A

B

C

D

E

F

G

1650KAP
3.31
3.88
4.25
2.5
3
3.31
1/4-20 x 0.5" Deep Inserts
1650PAP
3.31
3.88
4.25
2.5
3
1.5
1/4-20 x 0.5" Deep Inserts
1650RAP
4.25
5
4.5
3.38
4.25
4.5
1/4-20 x 0.5" Deep Inserts

 

 

Schematic & Hook Up Data

 

  

Secondary Connections 

 

 

 

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