|Object Name:||Analogue Filter Hybrid Integrated Circuit|
|Year of Manufacture:||Unknown|
|Location:||Main Object Store|
[on rear of hybrid IC case]
1920/1 M1 [or maybe: 1920/1 171]
A de-lidded 40-pin hybrid IC embedded in resin. The given dimensions are for the black plastic box containing the resin embedded hybrid IC; the embedded hybrid IC case alone (excluding pins) is: 55 x 4 x 29 mm.
The circuitry within the hybrid IC contains three quad op-amp IC chips surrounded by capacitor chips (including 2 tantalum electrolytics, coloured orange) and various forms of thick-film (printed) and thin-film (chip) resistors. This suggests the hybrid provided precision analogue filtering, possibly as part of sonar acoustic signal processing.
Nothing more is known at present about this particular Hybrid regarding its function or usage.