![Hickok 539A tube tester calibrated, 5Y3 and 83 tubes replaced by solid state equivalents For Sale - Canuck Audio Mart Hickok 539A tube tester calibrated, 5Y3 and 83 tubes replaced by solid state equivalents For Sale - Canuck Audio Mart](https://img.canuckaudiomart.com/uploads/2023/04/19/649970059_thumb_7613567c20c0a708c9924d8cee0870a1.jpg)
Hickok 539A tube tester calibrated, 5Y3 and 83 tubes replaced by solid state equivalents For Sale - Canuck Audio Mart
![VINTAGE 1951 NOS Western Electric 301A Type 83 Mercury Rectifier Amplifier Tube £337.82 - PicClick UK VINTAGE 1951 NOS Western Electric 301A Type 83 Mercury Rectifier Amplifier Tube £337.82 - PicClick UK](https://www.picclickimg.com/gVAAAOSw2CNfyZW8/Vintage-1951-NOS-Western-Electric-301A-Type-83.webp)
VINTAGE 1951 NOS Western Electric 301A Type 83 Mercury Rectifier Amplifier Tube £337.82 - PicClick UK
![Sylvania ONE (1) Type 83 Rectifier Antique tNOS AT1000 TESTED Vacuum Tube Hickok Audio 1932-1966 | Reverb Canada Sylvania ONE (1) Type 83 Rectifier Antique tNOS AT1000 TESTED Vacuum Tube Hickok Audio 1932-1966 | Reverb Canada](https://rvb-img.reverb.com/image/upload/s--vOH64aLH--/a_0/f_auto,t_large/v1671201583/q8x1ersezkg7ao9tbzkp.jpg)
Sylvania ONE (1) Type 83 Rectifier Antique tNOS AT1000 TESTED Vacuum Tube Hickok Audio 1932-1966 | Reverb Canada
![National-Union 5Z3 VT-145 Rectifier Tube – Hickok 539B tests @ 78/83, Min:54/54 – St. John's Institute (Hua Ming) National-Union 5Z3 VT-145 Rectifier Tube – Hickok 539B tests @ 78/83, Min:54/54 – St. John's Institute (Hua Ming)](https://i.ebayimg.com/images/g/U7MAAOSwrOpiqIsM/s-l1600.jpg)