The ZM1070 is a neon-filled, double-pulse decadic counting tube manufactured by Valvo in Germany. It supports bi-directional counting and operates at speeds of up to 5,000 counts per second. Each of its ten stable cathodes is connected to a separate pin, allowing external actions to be triggered when a specific cathode is active. This design also enables the tube to be reset to any of its ten positions by applying a brief negative pulse to the desired electrode.
Compared to many other Dekatron tubes, such as the GC12/4B and GC10B/S from ETL in Great Britain, the ZM1070 features a more compact form factor. This makes it particularly well-suited for use in Nixie clocks, where Dekatrons are often employed as seconds indicators.
The equivalent British tube is the Z504S, which was manufactured by Mullard and other companies.
Key Specifications
| Property | Description |
|---|---|
| Manufacturer | Valvo |
| Time period | mid 1960s |
| Filling | Neon |
| Counting speed | <5,000 c/s |
| Envelope diameter | ~28.5mm |
| Envelope height | ~34mm |
| Socket | B13B |
References
