> SOWTER TYPE 3575 TRANSFORMER SOWTER AUDIO TRANSFORMERS
9063 EXCEPTIONAL PERFORMANCE INPUT TRANSFORMER

600/10K TRANSFORMER
WITH FULL GEOMETRIC BALANCE

LEAD COLOURS

9063 frequency responseFREQUENCY RESPONSE measured using 600 ohm source and 10k ohm load

APPLICATION

Exceptionally high level, high bandwidth, low distortion 600 ohm input transformer. Suitable as replacement for original transformer in many vintage recording studio units. 100% geometric balance ensures near perfect phase splitting for use with balanced amplifiers.  May be used in reverse as a step down transformer for pre-amp or 600 ohm line drivers.  No uncancelled dc permitted in primary or secondary windings.

FEATURES

Unusually large 100% Mumetal laminated core for minimal distortion even at very high levels. 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. 
Secondary configuration: Series Parallel
Voltage ratio 1CT:4CT or 1CT:2+2 1CT:2
Primary inductance 25H  
Bandwidth (-3 dB points, typical) 5 Hz to 90 kHz 5 Hz to 110 kHz
Insertion Loss 1.4 dB  
Total DC resistance ref. primary (typical) 106 ohms  
Max. input level at 50 Hz +24 dBu +24 dBu
Total harmonic distortion 0.002% at 1kHz 0.002% at 1kHz
Size Je
Size Je