Minikit MK171,absolute beginner

Hello
I soldered a Minikit MK171
and ihave a number of problems, the first is my english is good enough for a talk but when it comes to
technical problems i understand next to nothing.
so this voice changer dosn’t work at all. All that comes out is a terrible wistling noise and i don’t know
what mistakes i made,several i’m afraid.
for instance does it make a differece which way the resistors are soldered in? the other parts are quite
clear witch way exept the pushbuttons.The speaker is not quite clear,on the sketch it say 4-32 ohm,
on the back it says 4 0hm and on the diagram 4-8 ohm, what would you recomend?
this thing does not record sound, does it?
I hope somone can help me, ruebech

Sorry, this forum does not allow picture uploads
If you can provide LINKS (e.g. by using a free online picture base) to HI-RES and SHARP pics of your assembly (both solder- and component side)
then we can take a look and provide some feedback.