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scratchy sound from tweeter

Hi everybody reading this. Love music but have not a clue about electronics. Since my arthritis stopped me from playing piano and guitar I now listen to vinyl from my old vintage system. Fisher Studio Standard - CA-880 and small Relistic minimus speakers. I bed you laugh now but hey - I am on a small retirement budget.

Sometimes I like to crank the music up (loss of hearing helps doing so). Now a problem occurred while listening. Mostly the left speaker makes a scratchy sound especial when volume goes up.
But there is also a bit scratch in the right one but about 90% less. I changed to wires to reverse left and right speaker to check.

I first thought it could be the 1980's amp condensers. (They might could benefit from a replacement too)
Since the left speaker was observed to have a problem I changed the tweeters in both speakers.
But the problem is still there. It feels when the amp gets warm it increases the scratch.
Question: Is it possible that only the crossover in the left speaker is bad ???
Thanks upfrontPuu
puu
roberjerman
4,319 posts
 
One of the 8 inch woofers in my Snell E's now does this all the time! So I had to buy a replacement pair from SEAS! Careful with that volume control!
roberjerman
4,319 posts
 
You can find a pair of ADS 200 speakers available for not much money! Same size and configuration as the Radio Shacks. But much better build quality! USA - built! 
yogiboy's avatar
yogiboy
5,910 posts
 
These speakers should fit into your small retirement budget!
https://www.stereophile.com/content/dayton-audio-b652-loudspeaker
erik_squires
16,901 posts
 
You know, if those are ferrofluid tweeters, it is quite likely the fluid has vanished, and the coils are covered in gunk. 

See if those speakers were in fact ff tweeters, in which case you can do the repairs yourself. 
puu OP
23 posts
 
Thanks so much to you all here, I feel blessed and like to express my gratitude!

I tested the speakers with a 9 volt battery and reverse polarity. They pop in and out without any noise besides a static crack when connecting.
Next thing I will do is to test the Fisher with different speakers. Have to drive two hours to a friend and will update my testing here.

Thanks for the suggestions, that fit my budget . Since a work injury took me down 13 years ago  - I shop @ thrift stores.
In my old working life I rode a bike an skipped a car, this way I could effort a Linn system (LP12, LK1 LK2 and Linn speakers) and I was a happy camper for many years.
That life is gone and I miss parts of it. But the CA-880 made listening to Oscar Peterson "You look good to me" still a pleasing experience, clean and a bit punch. And yes, the Realistic speakers lack a lot and I came close to add an SVS sub to them ( I hat to let go of a "housing only" damaged pair for a great price due to high shipping cost).

Aloha
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