| PACKAGE |
PART NUMBER |
SOWTER TYPE 7456
HIGH PERFORMANCE INPUT TRANSFORMER
Replacement for Marinair ZUTT012a
|
| 2 x M3 holes centre
leads side |
7456-F |
| Threaded grommet |
7456-E |
|
FREQUENCY RESPONSE measured using 600 ohm source and
15k ohm load
|
 |
| APPLICATION Exceptionally
high level, high bandwidth, low distortion 600 ohm or 200 ohm input transformer.
Suitable as replacement for original transformer in Trident A range, B
range, Fleximix and other vintage recording
studio units. No uncancelled
dc permitted in primary or secondary windings. |
| FEATURES
Unusually large 100% Mumetal laminated core for minimal distortion even at
very high levels. Very high inductance ensures an input impedance of at least 1000 Ohms over a wide frequency rqange when the secondary is loaded with 50K Ohms. Two chamber bobbin provides full geometric balance for
the ultimate in noise rejection and phase splitting performance. The
secondary windings may be used in parallel for reduced ratio which will
result in increased bandwidth etc. Heavy Mumetal screening can to ensure
immunity from hum fields. |
| Voltage ratio |
1:5.9 |
| Bandwidth (-3 dB points, typical) |
5 Hz to 50 kHz |
| DC resistance (primary) |
110 ohms (approx) |
| DC resistance (secondary) |
2080 ohms (approx) |
| Primary inductance (approx) |
18H (approx) |
| Max. input level at 50 Hz |
+20 dBu |
| Total harmonic distortion |
0.002% at 1kHz |
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