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Ultra Electric Products: Radio Ultra T611 (aka Minstrel)
 |
Source: |
This information from the 1949 brochure (L611) |
| Power: | 200-250 volts AC, 50-100 cycles | |
| Wavebands: | Three; LW (1000 to 2000m), MW (190 to 555m), SW (16 to 50m) | |
| Controls: | (1) Tuning; (2) Volume control and on/off switch; (3) Tone control using negative feedback; (4) Wave change/Gram switch | |
| Design: | Scientifically designed walnut finished cabinet with beautifully grained selected walnut front panel. It is only 7 3/4 ins. deep permitting it to stand snugly against a wall. Height 15 1/8 ins.; width 18 ins.; depth 7 3/4 ins. | |
| Date: | 1949 | |
| Manufacturer: | Ultra Electric Ltd. Western Avenue, London W3 | |
| Features: |
Three valves (including two multiple purpose)
and mains rectifier. High Q Iron dust cored coils with silver mica
capacitors giving maximum stability, conversion gain and selectivity.
Specially designed cabinet giving great purity of tone. Intermediate
frequency and other circuit details have been designed with regard to the
"Copenhagen" wave-length agreement which comes into use in early
1950. High efficiency 8-in. permanent magnet moving-coil speaker. Peak audio output power up to 5 watts which, with the specially designed cabinet, gives more than adequate volume with exceptional purity of tone. Extension loudspeaker sockets are provided. |
|
| Line up: | V1 Mazda 6C9 low noise triode-hexode frequency changer. V2 Mazda 6F15 high gain IF amplifier. V3 Mazda Pen 45DD Output tetrode demodulator and AVC voltage generator. V4 Mazda UU6 full wave rectifier. The triode circuit of the frequency changer operates as an audio amplifier when reproducing gramophone records. Ample volume is obtainable when using a normal magnetic or crystal type pick-up. |