Oude Radio type 681

Oude radio ,Novak op lampen  Type  681,werkt nog ca

• Main principle
• Superheterodyne (common); ZF/IF 480 kHz; 3 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and 2 x Short Wave.

• Power type and voltage
• Alternating Current supply (AC) / 110; 130; 220 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical

• Power out
• 6 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 681 - Novak also Pontiac; Bruxelles

• Shape
• Tablemodel with Push Buttons.

• Notes
• Four band radio receiver:
• LW: 150 - 300 kHz
• MW: 520 - 1620 kHz
• SW1: 4,7 - 10,9 MHz
• SW2: 10 - 18,5 MHz

Push-Pull output amplifier. One Oval Novak Sonoramic loudspeaker (6" x 9", 3Ω).
Built-in ferrite antenna for LW and MW, static antenna for SW.

• Price in first year of sale
• 4,250.00 BFr