Sowter UK LA-2A Output Transformer

NOS Sowter 8940a output transformer for LA2A and other cathode follower circuits. 5K:600 Ohm impedance. Mix of steel and nickel laminations, I have used these on other tube circuits and it sounds way better than just steel. 107 British Pounds from Sowter, not counting shipping or tariffs.

From Sowter's site:

" For use in a high performance valve compressor/amplifier etc. Designed for use with a cathode follower or other low impedance source driving a nominal 600 ohm line. A good quality capacitor must be used to isolate the transformer from the dc voltage of the driving stage.

FEATURES Combination core using High grade Grain Oriented Silicon Iron (M6) and Mumetal (76% Nickel). This provides a high level capability, exceptional bandwidth and transient response which is maintained over the full dynamic range. Internal electrostatic shields to maximise output balance and noise immunity. The low insertion loss and step down ratio ensures a very low output impedance ideal for driving a long 600 ohm line or complex load with minimal loss of performance."

RATIO 3 : 1

MAXIMUM OUTPUT LEVEL 0.5 % THD at 50 Hz +28 dBu

FREQUENCY RESPONSE 450 ohm source 600 ohm load +/- 0.5 dB 10Hz to 120 kHz

TOTAL DC RESISTANCE referred to secondary 15 ohms

EFFECTIVE OUTPUT IMPEDANCE (with 450 ohm source) 65 ohms