Ekco-Scophony ES 104 (1938). 20 x 24 inch screen. Had 39 tubes (valves)
and consumed 1000 watts. The set was mechanical, using a mirror drum 12
inches in diameter, a miniature polygon of stainless steel rotating at
30,375 rpm, with a 300 watt mercury lamp. For more details, see Peter Yanczer's Scophony page.
Original price 220 Gns.