Sowter Type 9580

Medium/High Impedance Phono Cartridge Transformer

PACKAGE OPTIONS Part Number
Coloured Leads
Octal base
9580-F
9580-G
APPLICATION For matching a range of medium to high impedance (25-100 ohm) moving coil Phono cartridges to balanced or single sided solid state or valve pre-amplifier. Ensures appropriate loading of the cartridge and correct matching to pre-amplifier. 1:12.5 voltage ratio. Two transformers are required for a stereo system.
FEATURES  Mumetal (76%Nickel) laminated core for minimal harmonic distortion and exceptional bandwidth.  Multiple interleaved windings ensuring exceptionally good bandwidth. The high bandwidth and very low phase shift ensures excellent transient response. Mumetal can for magnetic shielding. Available with colour coded leads or international octal plug for a small extra charge. Replaces type 6864.
VOLTAGE RATIO 1:12.5
TOTAL HARMONIC DISTORTION (THD) at 20 Hz (50 ohm source) Typical 0.05%
FREQUENCY RESPONSE 50 Ohm source 10K ohm load +/- 0.5 dB 5 Hz to 60 kHz
NOTE The cartridge should be connected to the Orange (hot) and Red leads. The amplifier should be connected to the Green (hot) and Blue.  You may need to experiment with different ground connection points to minimize hum.
E A Sowter Ltd
The Boatyard Cullingham Road
IPSWICH IP1 2EG England
Tel:+44(0)1473 252794
Fax:+44(0)1473 236188