Sound-Master

Mariner "Sound-Master" Extension Speaker

Designed for use with all the popular types of transistor radio receivers, the unit affords more mellow tone and reverberation effects with no additional battery drain. Inbuilt 3" speaker. Supplied with 12 ft cord and two plugs to suit any popular size earphone jack. Red or cream finish. Bracket for wall mounting. Dimensions: length 12¼", diameter 3¼". (FROM MINGAY'S PRICE SERVICE)

See also similar or identical models:

• Allegro E-102
• Kensington TS-30
• Newmax TS-25
• Newmax TS-30
• Raleigh TS-30
• Ross RE-3
• Tonex TS-30
• Valiant TS-30
• OGMS 564
• Newmax Tubular Extension Speaker TS-30

Another similar model was made in Germany in the mid-1950s, the Geruphon 3D Resonator. It worked with a pressure chamber system with high efficiency.

Hier finden Sie 14 Modelle, davon 8 mit Bildern und 0 mit Schaltbildern.
Alle gelisteten Radios usw. von Mariner (Brand of Cibernetics Electronics Pty, Ltd.); Melbourne, Victoria.