Vintage components I.D help

[momo]

I recently dismantled a 60's Bogen all transistor radio and there were some of these... I think the green/yellow glassed diode is a Ge,are the black ones diodes? and do capacitors exist in extra small size...the small silver seems like a cap, sais 4.7M 20v, C1 602.
Sorry if its an obvious question, im still discovering all the wonders, especially the old stuff!
thanks for the replies.

[Mark F]

Yes, that looks to be an electrolytic and the black things look like Silicon diodes & last but not least, the one with the green stripe looks to be Ger. but it may be Sil. Measure it to be sure.

[Meanderthal]

 The black ones look an awful lot like the clipping diodes in an old Sekova Frizzy Fuzz.

[Dan N]

The black ones look an awful lot like the clipping diodes in an old Sekova Frizzy Fuzz.

Oooo! What's that?!?

[Meanderthal]

 It was a red muff fuzz thingy that plugged right into the guitar jack... no circuit board, just hung in the air. Mine fell apart many moons ago... years later I built an electra distortion and stuffed it in the... uhh... enclosure. I saved the clippers, the trannys were rotten, and the caps were crap...

Wish I'da drawn up a schematic before I ripped it apart though, it sounded pretty cool! But I think it was a clone of an EH transistor muff... with weird diodes like that...

[momo]

Ha well thanks for the info, are all clipping diodes alike?, I would try the black ones on a breadboard. If anyone has suggestions for a build to test the clipping diodes....
thanks,
I just finished a dallas rangemaster and I really like it, it was refreshing after debugging a neovibe and highway89 that stubbornly wont cooperate.!...