Details the progress of constructed electronic components including clocks operated by the device.

Overview of developed products specializing in transmitter tubes and other electronic components.

Claims to have expertise in modifying and repairing of tube amplifiers as well as purchasing of components needed.

Collection of technical references for SPICE simulation techniques and index of downloadable applications.

Indicates the purchasing processes of available tube products. Provides a classified index of devices.

Contains instructions on how to build various devices such as miniature valves, photoelectric cells and Geissler tubes.

Technical guide indicating the mechanism of the numeric form crafted for electronic devices.

Showcases assembled receivers by the hobbyist with technical specifications presented. Also features schematic diagrams.

Provides details on manufactured products by the Soviet inventors. Includes classification of different devices.

Indexes supplier of the electronic device with information on each of the manufacturer's location and contact references.

Indexes available parts and components for the electronic device. Also provides technical articles.

Details of supplied devices including amplifier parts, transformers, capacitors and other components.

Reference for analysis and design of tube circuits as compiled by John Broskie including article archives and news updates.

Compilation of common facts and other descriptions about the electronic component with an index of alphanumeric classifications.

Showcases a variety of vacuum tubes manufactured from previous years with a gallery of products.

Selection of different types of the electronic tools with pictures of the equipment and specifications on its capacity.

Gallery of different tube amplifier with descriptions provided as well as newsletter archives.