842 Hammond Manufacturing, 842 Datasheet
842
Manufacturer Part Number
842
Description
AUDIO TRANSFORMER
Manufacturer
Hammond Manufacturing
Series
840r
Datasheet
1.560G.pdf
(2 pages)
Specifications of 842
Transformer Type
Broadcast Quality
Impedance
5K/20K (6K/24K) Primary, 125/500 (150/600) Secondary
Insertion Loss
1dB Typ.
Mounting Type
Chassis Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
842HM
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Broadcast Quality (560 Series)
©
St. Laurent, Quebec (514) 343-9010
Cheektowaga, NY (716) 630-7030
Guelph, Ontario (519) 822-2960
CANADA
USA
1
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SH
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8
www.hammondmfg.com
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Deep-drawn steel case with tin plated finish, with two convenient
6-32 mounting studs with hardware.
Hermetically sealed for stable characteristics and long life. Header
has nine 0.22" long solder pins.
Frequency response +/- 0.5 db max. from 50 Hz. to 15 Khz.
Insertion loss of apx. 1 db.
Maximum power level +15 dbm. (except 841, 842 & 844 which
are +20 dbm) with specified characteristics, or higher levels with
reduced low frequency performance.
Electrostatic shield between primary & secondary connected to
terminal 9.
Humbucking construction
Balanced split windings on primary & secondary for circuit
versatility. Primary may be used as a secondary and vice versa for
impedance matching.
Overall dimensions 1.75" wide x 1.25" deep x 2.56" high max.
Shipping weight 0.5 lb.
CHASSIS MOUNT - HERMETICALLY SEALED
76
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Rugged black epoxy potted case with 9 pin connections
(.025" square by 0.5" long).
Frequency response @ 0 dbm +/- 1 db max. (+/- 0.5 db is
typical) of 30 Hz. to 30 Khz., except 560Q which is 30 Hz.
to 15 Khz.
Insertion loss of 1 db max.
Maximum power level 0 dbm.
Electrostatic shield between primary & secondary
connected to core and pin "SH".
Humbucking construction
Balanced split windings on primary & secondary for circuit
versatility.
Primaries and secondaries can be reversed for
impedance matching.
Overall dimensions 1.64" x 1.33" x 0.85" high max.
Shipping weight 4 oz.
560C
560E
560G
560N
560Q
560J
560L
Part
No.
P.C. BOARD MOUNT - EPOXY POTTED
1.33
A
Emitter or mic to Line
Emitter or mic to Line
Isolating or Hybrid
Collector to Line or Line to Base
Collector to Line or Matching
Collector to Line
Matching or Bridging
AUDIO TRANSFORMERS
1.64
B
AUDIO TRANSFORMERS
Application
0.85
Max.
C
Dimensions (Inches)
Queenstown, Australia 61-8-8240-2244
0.20
D
Basingstoke, UK 01256 812812
1.30
E
AUSTRALIA
EUROPE
0.141 0.344 0.156
Primary
150/600
150/600
150/600
150/600
10k/40k
50/200
Nominal Impedance
F
12/48
G
Secondary
1200/4800
10K/40K
10K/40K
150/600
150/600
150/600
5K/20K
H
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842 Summary of contents
Page 1
... Frequency response +/- 0.5 db max. from 50 Hz Khz. • Insertion loss of apx. 1 db. • Maximum power level +15 dbm. (except 841, 842 & 844 which are +20 dbm) with specified characteristics, or higher levels with reduced low frequency performance. • Electrostatic shield between primary & secondary connected to terminal 9. • ...
Page 2
... Interstage (ratio 1:2) 834 Interstage (ratio 1:4) 835 Interstage (ratio 1:1) 841 ** P.P. Plates to Line 842 ** P.P. Plates to Line 844 ** P.P. Plates to Line NOTES: * Electrostatic shield between primary & secondary ** Single plate requires parallel feed. When operating at impedances below nominal, power capabil- ity is lower and the frequency spectrum is shifted downward, conversely, at higher impedances power capability and frequency spectrum will be shifted upward ...