15 Radio Laboratory Devices

1) Selective voltmeter 2174A, c. 1960, Rycom Instruments, USA, measuring device, can also be used as a receiver, frequency range 0 to 420 kHz in 6 ranges, built-in control loudspeaker, 115 volts AC. – 2) Adjustable stabilised power supply with two instruments, GE DO NV 25/15, without manufacturer's specification, very solid construction. – 3) Swiss frequency control device, c. 1948, Radio Sport, Biel. Wave meter for calibrating transmitters and receivers, frequency range: 100 kHz to 30 MHz in 6 ranges, fold-out telescopic aerial, metal housing. – 4) Field strength meter GM4010, c. 1955, Philips Radios, Germany. 7 tubes, long wave, medium wave and short wave, 110–245 volts AC, built-in control loudspeaker, demonstration model in Plexiglas case, original metal case included. In good condition and (according to the consignor) working. – 5) Level meter D2072, c. 1968, Siemens & Halske, 100 MHz, 110 to 235 volts AC, analog display, metal case. – 6) Receiver E863 KW/2, c. 1969, Telefunken, medium and short wave from 1.5 to 30 MHz in 4 ranges, digital frequency display, 110/220 volts AC, metal case. – 7) Wien oscillator GF20, c. 1965, Clamann & Grahnert, AC supply, metal case. – 8) Autotransformer LSS010, c. 1970, Technisch-Physikalische Werkstätten (TPW), VEB Thalheim, GDR, primary 220 V, secondary 1 to 250 V, max. 10 A. – 9) 2 Statron DC voltage regulators. – 10) VHF receiver No. 2025, c. 1960. – And: 11) 4 radio measuring instruments by Rohde & Schwarz.

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)