The TD03-10 is an indirectly heated disc seal triode, without internal feedback, primarily intended for use as a common grid, earthed anode, concentric line oscillator. It has a 10 Watt anode dissipation and can also be used as a power amplifier.![](../pics/aaa1030a.jpg)
This shows the central grid with the copper anode on the right. The grid is formed from a parallel series of wires across the central hole. It looks as if the grid wires are held in a sandwich between two copper discs. In the picture the wires run from top left to lower right.![](../pics/aaa1030b.jpg)
An overall view with heater connection at lower right.The planar envelope is 16 mm in diameter, and is 62 mm overall.References: Data-sheet & 1040. Type TD03-10 was first introduced in 1945. See also 1945 adverts. |