Telefunken Economy Broadcast

Three-part receiver system, developed and manufactured identically by the companies Telefunken, Lorenz and Huth. 1) Mains connection unit, Huth, no. 30923, for 110 and 220 volts DC, closed metal case, mains switch and 2 screw fuses are accessible from the outside, 2 iron resistors behind mesh on the top of the case. – 2) Secondary Audion receiver, type T, no. 26123, Telefunken, 1 tube (missing), with regeneration, wave range 3000 to 4500 m, switchable from telephony to telegraphy reception, short circuit variometer coils adjustable from outside with rotary knob, side hook switch with receiver (added), oak case with RTV stamp, height 14 ½ in. – And: 3) Low-frequency amplifier, no. 29288, Telefunken, 2 tubes, oak case with RTV stamp, height 11 2/5 in. – Note: "Der Deutsche Wirtschafts-rundspruch" was broadcast from 1922 to 1924 via the long-wave transmitter Königs Wusterhausen on wave 4000. The range was 3000 km with the two-tube receiver. It was a fee-based radio service, primarily for stock exchange, foreign exchange and commodity quotations. The equipment was rented out by the Reichstelegraphenverwaltung (RTV), sealed and serviced in the event of faults. In 1924, there were already approx. 2000 subscribers.

布雷克拍品等级是为了方便竞买人判断拍卖品的成色而设置的。布雷克等级用1到6级来标注外观和功能的成色，(从非常好到非常差)。 在目录图册里用括号里的2个数字来表示，前一个数字表示外观成色的级别，后一个数字表示功能成色的级别。如(3/2)表示外观成色是3(满意的)，功能成色2(好)。 成色 定义参照下列标准： 1 - 非常好 (未使用过，没有使用痕迹) 2 - 好 (新，极少的使用痕迹) 3 - 满意的 (普通的使用痕迹) 4 - 及格的 (明显的使用痕迹，某个非主要部件是后配的) 5 - 有缺陷的 (极明显的使用痕迹, 某个主要部件是后配的，功能上有缺陷，需要修理) 6 - 非常差 (严重破损, 缺少重要部件)