What are these parts? (better photos)

componentsidentification

I have salvaged some parts that I can't identify myself. I would appreciate it if someone could tell me what they are called so I can look them up.

I took some better photos of the first 3 parts, and added a 7th at the bottom. Sorry about #3, but it is convex from all sides, and I don't have a light diffusor (yet).

part 1 better1:
1

part 2 better2:
2

enter image description here3:
3

4:
4

5:
5

6:
6

part 7

Sorry for the low quality of the photos. I'll get better with more experience with my camera.

Best Answer

I suspect the first one is a light detector of some sort.

From the size of its leads, the second one looks like a Zener diode, but for sure it's a diode of some kind.

The third one is a 4.0 MHz ceramic resonator with internal caps for use in a Pierce oscillator.

From the "BYV" legend on the fourth one, it's a high-speed rectifier of some sort. The rest of the legend would probably single it out.

The fifth one, a transistor? a dual diode? ???

The sixth one is a 10pF 1kV ceramic capacitor

Views showing more legending would be helpful.