PACKAGE OPTIONS PACKAGE CODE

SOWTER TYPE SA07

2500 ohms 20W SINGLE ENDED OUTPUT TRANSFORMER FOR 300B, 2A3 ETC
FULLY SHROUDED SA07-S
OPEN FRAME SA07-O
SA07 response
APPLICATION High performance 20W single ended output transformer for use 300B, 2A3 or similar valve requiring a 2500 ohm reflected load. For those who prefer to operate the 300B with a 3500 ohm load and are looking for a very conservatively designed transformer for this valve type SA08 is recommended.
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. 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. Optional secondary winding configuration. Optional shrouded or open frame package styles.
PACKAGE SIZE N
WEIGHT 4.6 kg
WINDINGS: Nominal Z DC Resistance
PRIMARY 2500 ohms 70 ohms
SECONDARY 16/8/4 ohms 1.1 ohms
ALTERNATIVE SECONDARY OPTIONS Tapped 8/4 ohms
DC quiescent current (no signal) 100 mA
Maximum Power at 20 Hz 25 Watts
PRIMARY INDUCTANCE 20 Henrys
FREQUENCY RESPONSE (700 ohm source, 16 ohm load) 10Hz to 70 kHz (-3 dB points typical)
E A Sowter Ltd
The Boatyard, Cullingham Road
IPSWICH IP1 2EG England
Tel: +44(0)1473 252794
Fax: +44(0)1473 236188
E-Mail sales@sowter.co.uk