Sowter Type 8650

High Impedance to 600 ohm Line Output Transformer

Coloured Leads

8650-A

PCB Pins

8650-B

Solder Tags

8650-X

APPLICATION For use in a high performance valve compressor/amplifier etc using either an ac coupled single ended or push-pull output stage. Can be used with a secondary load resistor e.g. 200 ohms will provide a constant reflected anode to anode load of 16000 ohms when the amplifier is feeding a high impedance load. This also lowers the effective output impedance of the amplifier and may be adjusted to define the amplifier gain. When used with a push-pull output stage the quiescent dc anode currents must be balanced to within 0.5 mA.

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. This core also permits the use of a relatively high ratio which ensures minimal loading of the anode and a low output impedance for driving lines or complex loads.

RATIO

9 : 1

MAXIMUM OUTPUT LEVEL 0.5 % THD at 50 Hz

+28 dBu

Max dc current per anode

30 mA

Max unbalance current

500 uA

FREQUENCY RESPONSE 8K0 source 100 ohm load

+/- 0.5 dB 10Hz to 70KHz

TOTAL DC RESISTANCE referred to secondary

13.5 ohms

EFFECTIVE OUTPUT IMPEDANCE (with 200 ohm secondary resistor)

100 ohms

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