PACKAGE Ratio Options package style PART NUMBER

SOWTER TYPES
9041 9042

200 mW 600 OHM LINE DRIVER TRANSFORMERS FOR TUBE AMPLIFIERS

SIZE "j"
U-Clamp
180 g
5CT:1  Leads 9041-A
PCB  9041-B
Solder tags 9041-X
3:1 Leads 9042-A
PCB 9042-B
Solder tags 9042-X
APPLICATION Exceptionally high bandwidth 600 ohm line output transformers. 2 different ratios for Push-Pull, ac coupled Cathode Follower and SSRP circuits etc. Ideal for HiFi pre-amplifiers, Microphone amplifiers, Compressors, Equalizers etc. Ideal for 6SN7 or ECC83 valves. Suitable as replacement for original transformer in many vintage recording studio units.
The fully balanced output winding ensures isolation from ground noise, noise pick-up in cables and elimination of clicks and bangs when the connections to other equipment are switched. Reduces the output source impedance of the circuit to ensure performance is independent of cable length and multiple loads.
FEATURES Combination Mumetal and Grain Oriented (M6) laminated core for minimal distortion and a good output level. The Mumetal core ensures the LF response is maintained even at very low levels where the ear less sensitive. Multiple interleaved primary and secondary windings to give an unusually wide bandwidth. Additional centre tapped winding for negative feedback.
TYPE No 9041 9042
Voltage ratio 5CT:1 3:1
Bandwidth (-3 dB points, typical) 10 Hz to 120 kHz 10 Hz to 120 kHz
Total DC resistance ref primary 950 ohms 350 ohms
Max dc current per side of primary 30 mA max 30 mA max
Max unbalanced dc current 0.5 mA 0.5 mA
Ratio of negative feedback winding (% of secondary voltage) 20% 20%
Max output level at 50 Hz +23 dBu (11 Volts) +23 dBu (11 Volts)
CONNECTIONS Connections
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