doesn't stock common electronic parts
something may be common in your city,it is not necessary that will must available in my country,
if you don't have patience, for newcomers questions you may also join gardening where no one(e.g plants) can ask you question which makes you hot.......?
its my advise to you audio_guru be patience....and calm.....
similar functionality means simple op-amp if we want to simple amplify signal we can use 741,lm358 etc.
if you don't hav good answer to any post of this forum.you are not forced to answer....you may listen music...or audio...