1628SE

1628SE Datasheet

1627SE 1628SE 1629SE 1640SE 1642SE

Part	Datasheet
1628SE	1628SE (pdf)

Related Parts	Information
1640SE	1640SE
1629SE	1629SE
1627SE	1627SE

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Single Ended Audiophile - Tube Output SINGLE-ENDED "CLASSIC" TUBE TYPE - ULTRA-LINEAR OUTPUT TRANSFORMERS • Over designed for single ended tube output circuits triode, tetrode or pentode tubes . • Enclosed shielded , 4 slot, above chassis Type "X" mounting. • Frequency response at least 20 Hz. to 20 Khz. at full rated power +/- 1 db max. ref. 1 Khz. • Insulated flexible leads 8" min. • 25 watt units include a 40% screen tap for Ultra-Linear operation if desired . 75 watt unit does not include screen taps. • High quality laminations, M6 grain oriented silicon steel • 75 watt model secondary, has easy hook-up taps rather than multiple winding connections. Specifications Cat. No. 1627SE 1628SE 1629SE 1640SE 1642SE Audio Watts 25 75 Pr imar y Impedance 2,500 5,000 6,500 1,250 5,000 Max. DC Bias 160 ma. 120 ma. 100 ma. 200 ma. 300 ma. Secondary Impedance 4-8-16 4-8-16 4-8-16 4-8-16 4-8-16 Wt. Lbs. 11 28 Dim. Ref. X15 X20 Dimension Table Cat. No. A B C D E G slot X15 x X20 x 25 Watt Models - Transformer Schematic B+ Red Sc Blu/Yel Plate Blu 8 Ohm Yel Grn/Yel 4 Ohm 0 Blk/Yel 4 Ohm Grn 0 Blk Yel Grn/Yel 25 Watt Models - Secondary Connections Yel Grn/Yel Yel Grn/Yel Blk/Yel Cat. No. 1627SE 1628SE 1629SE 1640SE 1642SE 4 Ohm Blk/Yel 8 Ohm

PDF Datasheet Preview

Single Ended Audiophile - Tube Output

SINGLE-ENDED "CLASSIC" TUBE TYPE - ULTRA-LINEAR

OUTPUT TRANSFORMERS
• Over designed for single ended tube output circuits triode, tetrode or pentode tubes .
• Enclosed shielded , 4 slot, above chassis Type "X" mounting.
• Frequency response at least 20 Hz. to 20 Khz. at full rated power +/- 1 db max. ref. 1 Khz.
• Insulated flexible leads 8" min.
• 25 watt units include a 40% screen tap for Ultra-Linear
operation if desired . 75 watt unit does not include screen taps.
• High quality laminations, M6 grain oriented silicon steel
• 75 watt model secondary, has easy hook-up taps rather than multiple winding connections.

Specifications

Cat. No.
1627SE 1628SE 1629SE 1640SE 1642SE

Audio Watts
25 75

Pr imar y Impedance
2,500 5,000 6,500 1,250 5,000

Max. DC Bias
160 ma. 120 ma. 100 ma. 200 ma. 300 ma.

Secondary Impedance
4-8-16 4-8-16 4-8-16 4-8-16 4-8-16

Wt. Lbs.
11 28

Dim. Ref. X15 X20

Dimension Table

Cat. No. A B C D E G slot X15 x X20 x
25 Watt Models - Transformer Schematic

B+ Red

Sc Blu/Yel

Plate Blu
8 Ohm Yel Grn/Yel 4 Ohm
0 Blk/Yel
4 Ohm Grn
0 Blk

Yel Grn/Yel
25 Watt Models - Secondary Connections

Yel Grn/Yel

Yel Grn/Yel

Blk/Yel

Cat. No. 1627SE 1628SE 1629SE 1640SE 1642SE
4 Ohm

Blk/Yel
8 Ohm

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Datasheet ID: 1628SE 635921