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Siemens / Haufe transformers |
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* From the parts with
askerisk I have singles. I offer them for trade or will buy yours! |
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All Siemens / Haufe transformers are mu metal shielded.
They all have the yellow or orange tape where their type number is indicated.
Size Overview: |
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A
B
C
D
E
F |
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38x36mm 29x33mm
30x22mm 21x23mm
20x22mm 17x20mm
Dimension given as
diameter x height. Beneath the tape the can can be split into two
parts. |
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Input Transformers |
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Type |
Picture |
Found in |
primary DC secondary
DC |
ratio |
Comments and
Suggestions |
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T38 |
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???? |
100 Ohms |
1:12
22dB |
Size: B. Very good input transformer.
Very versatile
input impedance that will well match
almost any MC cartridge. |
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7 kOhms |
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T41 |
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many mic inputs in
6SELA |
400 Ohms |
1:12
22dB |
Primary ranges between 350 Ohms and 450 Ohms, secondary between 7.5 and 8.5
kOhms. Good matching is necessary even when they look the
same. Size C.
Click here to see
different T41s. |
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8 kOhms |
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T42 |
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foto cell inputs in
several amps |
3 Ohms |
1:20
26dB |
Size: C. Extremely low input impedance. Not too versatile, but very
nice for very low Z cartridges with less
sensitive preamps. |
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1.65 kOhms |
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T54/5c |
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KLV 004 |
110 Ohms |
1:30
30dB |
Size: B. Input transformer with very high amplification.
Slight lacks in
the bass and high frequency range (about -4dB at 100Hz/10kHz)
require compensa-tion in RIAA stage. |
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??? kOhms |
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T55/12*
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KL-V204a
KL-V004 |
28 Ohms |
1:12
22dB |
Size:
29x31mm = slightly smaller than B!
Very good
frequency response on curve tracer.*
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1.65 kOhms |
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T108 |
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???? |
150 Ohms |
1:10
20dB |
Size:
E. Very nice transformer. Slightly louder in the high. Rising 4.5dB
at 22kHz (-3dB = 37kHz !!).
Great bass response (-3dB at 10Hz). |
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3.2 kOhms |
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T110 |
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several Bauer amps |
28 Ohms |
1:15
24dB |
Size:
E. Absolutely great perfor-ming transformer. Great bass response.
Perfect match for EMT Tondose TSD 15, XSD 15, TMD 25 (all 24 Ohms)
and OFS 25. |
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8 kOhms |
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T165*
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???? |
28 Ohms |
1:30
30dB |
Size:
D. Great transformer. Unfortunately I only have a single one.* |
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7.7 kOhms |
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T4365 |
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???? |
68 Ohms |
1:8
18dB |
Size:
F. Outstanding frequency response - especially bass reponse is
perfect! |
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3.4 kOhms |
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EÜ/VL
23 |
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???? |
3.2 Ohms |
1:30
30dB |
Size:
B. Great. This is the final transformer for the Ortofon SPU.
Very high
amplification. Perfect for low Z cartridges. |
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2.5 kOhms |
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VE 2409
Philips |
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???? |
2x17 Ohms |
1:25
28dB |
Size:
B. Great and very versatile! Made bei Haufe for Philips. 2 primary
windings with high amplification allow perfect match to any MC
cartridge. |
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2.6 kOhms |
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Balancing, Output and
Interstage Transformers |
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Type |
Picture |
Found in |
primary DC secondary
DC |
ratio |
Comments and
Suggestions |
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T55/3.5 |
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KLV 004 |
1640 Ohms |
5:1
-14dB
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Size: B. Output transformer for low impedance conversion.
Pretty similar
to T55/2. |
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326 Ohms |
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T55/2 |
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KLV 002
KLV 006
KLV 007 |
1600 Ohms |
5:1
-14dB
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Size: B. Output transformer for low impedance conversion. |
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215 Ohms |
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T62 |
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????? |
2x 11 Ohms |
1:1
0dB |
Size: B. Very good as interstage transformer for push pull tube
power amps. |
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16 Ohms |
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T172*
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Input xformer in 6SELA
power amps |
2x 165 Ohms |
1:1
0dB |
Found i.e. in 6SELA 2805 EL34 power amp. Size: B
Also found with 475 Ohms to 2x 175 Ohms.*
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417 Ohms |
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T188*
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6SELA
2154 |
0-65-158 Ohms |
1:1
0dB |
Size: A. THE big output transformer from the 6SELA2154 microphone
and mixer preamp. Great!*
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25 Ohms |
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