Sowter Type 4243

Direct Injection (DI) Box Transformer

PACKAGE OPTIONS Part Number
Coloured Leads 4243-F
Threaded grommet 4243-E
APPLICATION For matching high impedance (10k to 100k ohm) guitar pick-up etc to microphone input. Ensures optimum loading of the guitar pick-up and correct matching to microphone pre amplifier. Accepts balanced or unbalanced inputs or outputs. Isolates ground noise effects.
FEATURES Mumetal core for minimal harmonic distortion. Multiple interleaved windings to minimise leakage inductance ensuring good high frequency response. Electrostatic screens for noise rejection. Secondary winding centre tapped to provide phantom powering of an active transducer or phase split feed for use with a push-pull amplifier. Mumetal can for magnetic shielding.
RATIO 10ct:1
MAXIMUM LEVEL 0.5 % THD at 50 Hz (40 ohm source) +34 dBu
DISTORTION at 50 Hz (Source 40 ohms) 0.25% at +20 dBu
FREQUENCY RESPONSE 10k ohm source 1k ohm load +/- 0.25 dB 10 Hz to 20 kHz
E A Sowter Ltd
The Boatyard Cullingham Road
IPSWICH IP1 2EG England
Tel: +44(0)1473 252794
Fax: +44(0)1473 236188