1645 Hammond Manufacturing, 1645 Datasheet

TRANSFORMER AUDIO 5KCT 30W

1645

Manufacturer Part Number
1645
Description
TRANSFORMER AUDIO 5KCT 30W
Manufacturer
Hammond Manufacturing
Series
1600r
Datasheet

Specifications of 1645

Transformer Type
Push-Pull Audiophile, Ultra-Linear - Tube Output
Impedance
5KCT Primary, 4-8-16 Secondary
Insertion Loss
±1dB
Mounting Type
Chassis Mount
Frequency Range
30 Hz to 30 MHz
Primary Impedance
5000 Ohms CT
Secondary Impedance
16 Ohms
Termination Style
Chassis Terminals
Dimensions
2.5 in L x 2.75 in W x 3.06 in H
Product
Audio Output Transformers
Power Rating
30 Watts
Shielding
Shielded
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
1645HM

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Push - Pull
specifications (see hook-up schematics).
winding is always engaged on all load configurations).
1650E (70 Hz. to 30 Khz. +/- 1 db max. - ref. 1 Khz.)
Designed for push-pull tube output circuits.
Enclosed (shielded), 4 slot, above chassis Type "X" mounting.
Frequency response 30 Hz. to 30 Khz. at full rated power (+/- 1 db max. - ref. 1 Khz) minimum. Except the
Insulated flexible leads 8" min.
Due to the unique interleaving of the windings BOTH secondary windings must be engaged to meet
Negative feedback circuits can be utilized by connecting to the Green & Black wires - 4 Ohm secondary (this
All units include 40% screen taps for Ultra-Linear operation (if desired).
Typical applications - Push-Pull: triode, Ultra-Linear pentode, and tetrode connected audio output.
For our NEW improved "easy hook-up" secondary series - see our 1608-1650 "A" series.
For the "ultimate" in Push-Pull output see our line of epoxy potted output transformers (1650 potted series).
©
Number
1650W
1650F
1650H
1650K
1650N
1650P
1650R
1650T
St. Laurent, Quebec (514) 343-9010
1608
1609
1615
1620
1645
Part
Cheektowaga, NY (716) 630-7030
Guelph, Ontario (519) 822-2960
Audio
(RMS)
Watts
100
120
280
10
10
15
20
25
30
40
50
60
60
CANADA
Audiophile - Output (1608-1650 Series)
USA
Impedance
10,000 C.T.
8,000 C.T.
5,000 C.T.
6,600 C.T.
7,600 C.T.
5,000 C.T.
6,600 C.T.
3,400 C.T.
4,300 C.T.
6,600 C.T.
5,000 C.T.
1,900 C.T.
1,900 C.T.
Primary
"CLASSIC" TUBE TYPE - ULTRA-LINEAR
Max. DC
Per Side
100 ma.
100 ma.
100 ma.
158 ma.
128 ma.
128 ma.
200 ma.
318 ma.
318 ma.
200 ma.
318 ma.
403 ma.
806 ma.
OUTPUT TRANSFORMERS
www.hammondmfg.com
Impedance
4-8-16-70 V
Secondary
4-8-16
PUSH - PULL
4-8-16
4-8-16
4-8-16
4-8-16
4-8-16
4-8-16
4-8-16
4-8-16
4-8-16
4-8-16
4-8-16
90
2.50
2.50
2.50
2.50
2.50
2.50
3.13
3.13
3.13
3.13
3.75
3.75
4.38
A
2.75
2.75
3.25
3.50
3.50
3.75
4.00
4.00
4.25
4.25
4.25
4.50
7.50
B
Dimensions (Inches)
3.06
3.06
3.06
3.06
3.06
3.06
3.81
3.81
3.81
3.81
4.56
4.56
5.25
C
2.00
2.00
2.00
2.00
2.00
2.00
2.50
2.50
2.50
2.50
3.00
3.00
3.50
D
Queenstown, Australia 61-8-8240-2244
Basingstoke, UK 01256 812812
+/- 1/16”
1.69
1.69
2.19
2.44
2.44
2.69
2.69
2.69
2.94
2.94
3.06
3.31
5.88
E
AUSTRALIA
EUROPE
.203 x .38
.203 x .38
.203 x .38
.203 x .38
.203 x .38
.203 x .38
.203 x .38
.203 x .38
.203 x .38
.203 x .38
.203 x .38
.203 x .38
.203 x .38
Slot
G
Lbs.
3.25
Wt.
2.5
2.5
3.5
4.5
6.5
12
14
28
4
7
8
8

Related parts for 1645

1645 Summary of contents

Page 1

... Primary Watts Number Impedance (RMS) 1608 10 8,000 C.T. 1609 10 10,000 C.T. 1615 15 5,000 C.T. 1620 20 6,600 C.T. 1650F 25 7,600 C.T. 1645 30 5,000 C.T. 1650H 40 6,600 C.T. 1650K 50 3,400 C.T. 1650N 60 4,300 C.T. 1650P 60 6,600 C.T. 1650R 100 5,000 C.T. 1650T 120 1,900 C ...

Page 2

... 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. Schematic - All Parts Except 1645 Blu (Plate) ...

Page 3

... Impedance (RMS) 1608A 10 8,000 C.T. 1609A 10 10,000 C.T. 1615A 15 5,000 C.T. 1650E 15 8,000 C.T. 1620A 20 6,600 C.T. 1650FA 25 7,600 C.T. 1645A 30 5,000 C.T. 1650G 35 6,600 C.T. 1650HA 40 6,600 C.T. 1650KA 50 3,400 C.T. 1650NA 60 4,300 C.T. 1650PA 60 6,600 C.T. 1650RA 100 5,000 C.T. ...

Page 4

... 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. Schematic All Parts Except 1645A, 1650E & 1650G Blu White (16 Ohm) (Plate) ...

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