Sowter Type 1290AC coupled cathode follower Output Transformer |
PACKAGE OPTIONS | Part Number | |||||
| Mumetal can with threaded grommet | 1290-E | ||||||
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| APPLICATION For use in a high performance valve compressor/amplifier etc for driving a balanced line from an ac coupled cathode follower or SRPP circuit. Similar to UTC A24 and Triad HS-50 (in overall 5:1 configuration) but with improved bandwidth. Introduced to provide a mumetal can option at reduced cost transformer option relative to our type 1010. Suitable for the Drip OPTO 4 and OPTO 5 (LA-2A) PCB. | |||||||
| FEATURES Combination core using Mumetal 30% and high grade M6 Grain Oriented Silicon Iron (70%) for high level capability whilst ensuring minimal distortion particularly at mid and high frequencies. Exceptional bandwidth. Colour coded leads. Mounting with Threaded Grommet. | |||||||
| RATIO | 5 : 1 | ||||||
| TOTAL HARMONIC DISTORTION at 1000Hz | 0.01% maximum | ||||||
| MAXIMUM OUTPUT LEVEL 0.5 % THD at 20 Hz | +24 dBu | ||||||
| MAXIMUM OUTPUT LEVEL 0.5 % THD at 50 Hz | +30 dBu | ||||||
| FREQUENCY RESPONSE 2kOhm source 600 ohm load | +/- 0.5 dB 10 Hz to 100 kHz typical | ||||||
| MAXIMUM PRIMARY DC per side | 0 mA | ||||||
| TOTAL DC RESISTANCE referred to secondary | 31 ohms | ||||||
| DIMENSIONS | 45 dia x 52.5 high. 15 mm below board. | ||||||
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