0A2150C2150 volt regulator, 7-pin miniature base
0B2108C 105 volt regulator, 7-pin miniature base
0D3VR150150 volt regulator, octal base, aka VR-150
0M6CV1053Vacuum Pentode RF/IF-Stage Controlling (mu)
0Z4 AFull-wave gas rectifier, octal base. Widely used in vibrator power supplies in early automobile radio receivers.
1AB6DK96heptodeMiniatur-7-Pin-Base B7G, USA 1940 – heptode mixer for battery superhet receivers. It is believed that Tungsram of Hungary had connections with the Philips organization.
1AC6DK92heptodeminiature pentagrid converter vacuum tube, also known by its European designation DK92. It’s a seven-pin tube designed to function as both a mixer and oscillator in superheterodyne circuits, commonly found in early radios.
1AH5DAF96diode – pentodeDiode-Pentode Audio Frequency – Miniatur-7-Pin-Base B7G, USA 1940
1AJ4DF96pentode amplifier pentode for use in battery portable radio equipment, mainly domestic broadcast receivers.
1P40930/CE-30-Cphototube phototube known for its sensitivity to infrared light. It is a type of gas phototube, and the 1P40 is similar to the 930, but with a lower maximum dark current and a non-hygroscopic base.
1R5DK91heptodePentagrid frequency converter, anode voltage in the 45-90 volt range.
1S2DY86rectifier Half-Wave Vacuum Rectifier Power-supply
1X2DY80rectifier Half-Wave Vacuum Rectifier – Noval, 9 pin miniature (USA pico-9) B9A Top contact with a cap.
2AS15diodeSaturation diode Power-supply – temperature-limited diode designed to close an external high-impedance circuit upon filament failure. It also features an interlock function, using pins 3 and 4, to open a circuit when the tube is removed from its socket. This tube is commonly found in vintage audio equipment and is known for its high-quality performance and sound characteristics.
2C43planar triode2C43 “Lighthouse” triode for UHF applications
2D21PL21thyratronThyratron – miniature, four-electrode, inert-gas-filled thyratron with negative control characteristics for use in relay and grid-controlled rectifier. Miniatur-7-Pin-Base B7G, USA 1940
3D6VT-185, 1299,DL29 pentodeVacuum Pentode Power/Output
3S4DL92pentodeVacuum Pentode Power/Output – Miniatur-7-Pin-Base B7G, USA 1940 – filamentary type power output pentode in the miniature construction
3V4DL21pentodeVacuum Pentode Power/Output – audio output pentode was designed for use in battery portable radio receivers – Miniatur-7-Pin-Base B7G
5AR4GZ34rectifier Full wave rectifier
5B110Mrectifier Beam Power Tube – pentode audio tube, often used in telephone repeaters and amplifiers. It is known for its ability to produce a two-watt output into a 5 kΩ load with low distortion. It’s a type of vacuum tube, also known as a thermionic valve or electron tube, used in older electronic devices for amplification and rectification
5R4 GYrectifier Full wave rectifier
5U4 GVT244rectifier Full wave rectifier
5V4 GArectifier Full wave rectifier
5Y3 GTrectifier Full-wave rectifier, octal base version of type 80
5Z3rectifier Full-Wave Vacuum Rectifier Power-supply – UX-Base (4 Pins (2 thick, USA 1924, UX)
5Z4 CBSrectifier designed to supply equipment of up to 40 Watts total power, this rectifier was made by several manufacturers. This suggests it became a very popular type. The miniature metal octal type was introduced in America by RCA during the mid 1930s.