Spare radio tube that came with the Nora Radio (2007.71.8.1 ). The tube has a plastic base with a center side lock and eight metal pins for electrical connections to the chassis. The base has a black metal cover which helped dissipate heat. The tube was made by Telefunken which was a German radio company. The diamond shaped Telefunken logo is stamped on the top of the tube along with the tube number.
Stamped on the top of the tube: 365 | Telefunken in diamond shaped logo | DCH 11 | white lettering on side of tube: W a ? | Embossed on base by center pole : 54 s | 1628 | 9 | P8