SOWTER Type UA23

HIGH PERFORMANCE PUSH PULL OUTPUT TRANSFORMER 
FOR KT66, EL84 Pentode or Triode etc

PACKAGE DIMENSIONS STYLE /SIZE REF
Fully Shrouded SN
Drop Through TN
Open Frame ON
APPLICATION  A  high performance output transformer for push-pull KT66 or EL84 etc in Pentode UL or triode mode or similar valves.  Replacement for Leak TL12 or TL25
FEATURES Highest grade low loss (M6) grain oriented silicon iron core for minimal distortion. 14 interleaved winding sections to maximize bandwidth and ensure clean transient response. Two chamber bobbin to ensure full geometric balance. Low copper resistance to minimize losses and maximize loudspeaker damping. 4 separate secondary windings (See below) for optimum matching to load without the use of tapped windings which can reduce HF response.  Other secondary configurations available at time of order. Various package options.  The original Leak TL12 had 2/8/18/32 ohm secondary which is available on request.
  Impedance  DC Resistance Inductance 
PRIMARY  8000 ohms 200 ohms 150H
SECONDARY   4/8/16 ohms 0.56 ohms
(16 ohm config)
0.3 H
(8 ohm config)
LEAKAGE INDUCTANCE referred to primary 4.25 mH
VOLTAGE RATIO (8 ohm config) 22.36:1
POWER (For 0.5 % Distortion at 20 Hz) 40 W
DISTORTION (30 Watts at 1000Hz) 0.05 %
DC QUIESCENT CURRENT 125 mA max.
FREQUENCY RESPONSE (Typical) 
5 ohm source (+/- 1.5 dB)
5 Hz to 50 kHz
SHIPPING WEIGHT (SIZE CODE N) 4.9 kg
E A Sowter Ltd
The Boatyard Cullingham Road
IPSWICH IP1 2EG England
Tel: +44(0)1473 252794
Fax: +44(0)1473 236188