Sound emitter - Operating valve: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
m (1 revision) |
(No difference)
| |
Latest revision as of 00:15, 25 February 2009
3-2-120
Operating valve (of a compressed-air sound emitter)
The valve controlling the admission of compressed air to the device which modulates the sounding air.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)