Help Identifying parts

[djQUAN]

I ordered a bunch of grab bags so that I could replenish my inventory in the workshop.

Most, I can identify but there are some that I have little or no idea what they are or just want to know a bit more about.

here are the first set of pictures.
I'm assuming these are some sort of narrow band RF filters? They are sort of heavy, feels like a sort of solid chunk of metal/ceramic.

 

[djQUAN]

These look like tuneable filters? or crystal oscillators that can be fine tuned?

 

[djQUAN]

These I think are also some sort of filter too? Seems to have a little more pins than regular crystal oscillators.

 

[djQUAN]

We like caps, so here are some found along in the pile.

I can identify the Wimas, the others all I know are just caps. If they are any good for audio projects, would be nice. 🙂

The white Rifa ones are interesting. They appear to be low tolerance parts as the value marking suggests.

 

[djQUAN]

These resistors I found in a big rack mount equipment. It has a bunch of cards with these precision resistors.

Would they be nice for audio use? Thinking of using them in the feedback loop of amps.

 

[Coconuts 500]

The blue circular component among your capacitors is a varistor. FYI.

 

[djQUAN]

The blue circular component among your capacitors is a varistor. FYI.

thanks! for some reason, the numbering made me think it was a high voltage capacitor of some sort. 🙂

here's more, The Fujitsu brand IC (lower right) is described to be a dual op amp but no datasheet found yet. I think the top left device is a DIP packaged crystal without an internal oscillator?

The others, no idea.

 

[djQUAN]

up 🙂

anyone? even just a little more info about these radial style precision resistors?