Unknown (fine grid)
15mm numeric tube manufactured by Unknown
This is a inverted mystery tube that has no part number or manufacturer printed on. It has a very fine anode grid and looks beautiful. From the look it could be a Mullard or a japanese manufacturer
| Brand / Manfacturer | Unknown |
| Same Types | |
| Likely Tyes | |
| Symbol height in mm | 15 |
| Characters / Symbols | 0-9 |
| Decimal point | none |
| Base / Socket | 0 |
| Starting Voltage (typ) | tested at 170V, 10kOhm V |
| Maintaining Voltage (typ) | 0 V |
| Current per Segment | 0mA |
| Reccomend Resistor | 0 |
