770939X SGS 17240 Does anyone know what this is?

[martin106]

Hi, I came accros 10 of these 770939X SGS,  and I'm just wondering what they are, and if they are usefull for anything, cant find any info on them,  they are a round can like transistor with 8 pins, I cant upload a picture for some reason.. All I know about them is they have been sitting in a drawer since the 80's

Thanks,

Martin

[anchovie]

770939 is the ordering code for a SGS-manufactured UA709 op-amp: http://www.datasheets.org.uk/U5B770939-datasheet.html

You can use it to make a Crackle Box: http://www.eam.se/kraakdoos/

[martin106]

Thanks Anchovie, thats good it is an opamp.