121. Tracked Changes. Piezoelectric sensors. Generic specifications Part 1, (8th February 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (78 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
122. Tracked Changes. Surface acoustic wave (SAW) and bulk acoustic wave (BAW) duplexers of assessed quality. Generic specification Part 1, (23rd January 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (86 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
123. Transformers and inductors for use in electronic and telecommunication equipment. Sectional specification for power transformers on the basis of the capability approval procedure Part 3, (15th November 1997) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (16 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
124. Transformers and inductors for use in electronic and telecommunication equipment. Sectional specification for signal transformers on the basis of the capability approval procedure Part 2, (15th November 1997) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (16 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗