SOWTER AUDIO TRANSFORMERS
IMPEDANCE MATCHING

600/10K Line Input or 10K/600 Line Output Transformer

APPLICATION

For use as a line input transformer for tube or solid state amplifier which can be driven balanced or unbalanced.. Center tap on input for phantom powering etc. Available with leads or for PCB mounting.  May also be used with primary and secondary reversed as a step down transformer for use with a CD player or similar device.  In this mode the transformer will isolate and balance the output as well as reducing the impedance and output level by 12 to 14 dB for driving a 600 ohm balanced line.

FEATURES

Mumetal core for minimal harmonic distortion, high bandwidth and excellent transient response. Internal electrostatic shield and bifilar wound primary for high common mode noise rejection. Mumetal can for magnetic shielding. The secondary may be loaded with 50k0 ohms which ensures a high input impedance of about 3k0 ohms over a good frequency range. Various package options.
RATIO 1ct:4.08
MAXIMUM LEVEL 0.5 % THD at 50 Hz (40 ohm source) +16 dBu
DISTORTION at 50 Hz (Source 40 ohms) 0.05% at +20 dBu
PRIMARY INDUCTANCE 12.5H approx
TOTAL DCR (Referred to primary) 99 Ohms approx
INSERTION LOSS 10k ohm source 10k ohm load 0.3 dBu
INPUT/OUTPUT BALANCE >60 dB
FREQUENCY RESPONSE 6k4 ohm source 10k ohm load +/- 0.25 dB 10Hz to 60 kHz