German Tube Radio Blaupunkt – SULTAN 2520 Model – Vintage – Good Tubes – RARE. Rare Vintage German Tube Radio Blaupunkt SULTAN 2520 Model. 21″ x 14″ x 9. Have tested the tubes – but not the whole unit as likely will warrant general testing / servicing – with the following notes. Data from the Radiomuseum. Blaupunkt (Ideal), Berlin, später Hildesheim. Broadcast Receiver – or past WW2 Tuner. Superheterodyne (common); ZF/IF 460 kHz. 10 FM circuit(s). Broadcast, Long Wave, Short Wave plus FM or UHF. Power type and voltage. Alternating Current supply (AC) / 110-240 Volt. Sultan 2520 – Blaupunkt Ideal, Berlin. Tablemodel with Push Buttons. 540 x 350 x 240 mm / 21.3 x 13.8 x 9.4 inch. Net weight (2.2 lb = 1 kg). 9.7 kg / 21 lb 5.9 oz (21.366 lb). Price in first year of sale. Overall looks pretty good. Some wear to the wood across the top. Tubes tested – results noted. Should assume it will require service to perform to spec. Parts / Not Working. A rescue from an estate in Metro Detroit.