Electron Tube Collection and Four Rare Special Tubes

1) Zenith RTS4, tetrode, Italy, 1941, four-pin European base. - 2) SFR E140, transmitter tube (triode), France, c. 1938, four-pin European base. - 3) Siemens STEM 5000 5/15, no. 6202, Thyratron, Germany, 1935, special base and top connection, height 10 in. - 4) Fivre 5C110, end pentode, Italy, c. 1938, P35 base. - 5) Elektromekano M7, triode, Denmark, c. 1938, four-pin European base. - 6) AEG S1/3ill, thyratron, Germany, 1940, with large-area cathode according to Hull, helium gas filling, on height-proof tube base. - 7) WF S1/0,2illE, thyratron, GDR, c. 1950, five-pin base. - 8) Tungsram OS 51, pentode, Hungary, c. 1950. - 9) 2 x Telefunken LD5, transmitting triodes of the German Wehrmacht. - 10) 2 x TeKaDe RL12T15, transmitting triodes of the German Wehrmacht. - 11) Telefunken RL2T3, triode. - 12) 2 x Telefunken LG2, dual diodes of the German Wehrmacht. - 13) Telefunken LG4, dual diode of the German Wehrmacht. - 14) Telefunken LG1, dual diode of the German Wehrmacht, with base. - 15) Valvo RL12T2, triode. - 16) Telefunken RL2P3, transmitting pentode. - 17) Valvo LG6, two-way rectifier. - 18) Telefunken LD2, triode of the German Wehrmacht. - 19) Telefunken NF2, vacuum pentode, mint in box. - 20) Three Telefunken magnetron tubes, RD4Ma, RD2Me and RD2Md, together on presentation base. - And: 21) Decimetre transmitter from the Deutsche Funkmesstechnik, c. 1940, educational model. - And: Four rare special electron tubes: 1) Telefunken Magnetron RD2 Md2, c. 1935, six-slot anode with thorium segment, made especially for the German Wehrmacht, used in radars with cryptic designations as "Schornsteinfeger", "Berlin", "Rotterdam", "Korfu", "Renner", "Segler", "Barbara", "Niendorf", "Euklid", "Panorama Z" and "Kornax". - 2) Loewe Opta 2 HMD, c. 1932, double tetrode (mixing tube), with base. - 3) Telefunken ACH 1, c. 1934, hexode-triode (mixing tube), with base. - And: 4) Westinghouse VT 17, 1924 onwards, USA, air-cooled transmitting tetrode.

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)