An Interval and Dwell Tester for Bomb-Release Interval Controls
T. H. Long · Transactions of the American Institute of Electrical Engineers · 1945
The device described is essentially a frequency meter with a scale proportional to the logarithm of 1/frequency, and a dwell meter suitable for use on inductively loaded contacts in d-c circuits. It has been found useful in several jobs in military aviation, one of which is described in some detail. An appendix gives a simple analysis of the shape of the frequency scale distribution obtained.