No actual data-sheet for the QS70/20 could be found but it clearly fits into the sequence of stabilisers. The QS70/20 data-sheet is probably a reasonable guide to the operating conditions of this gas filled valve but at five volts higher burning voltage.
The details are not visible - just the mica insulators. The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 45 mm tall.Reference: Data-sheet. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |  k | k | k | pa | a | a | a |
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Absolute Maximum Operating Conditions¶
Stabiliser | Va | mAa | 
| 70 | 20 |
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Updated October 13, 2020.
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