04-26-2020, 09:04 PM
Three years + on...
Finally, I have replaced the electrolytic capacitors on this receiver's tone control board.
2.2 uF and below were replaced with WIMA MKS2 film; larger ones with Nichicon electrolytics. I would have replaced the 3.3 uF units with WIMA as well, but I had a dozen or so 3.3 uF electrolytics and I thought it wise to use them rather than buying more caps.
It does sound better now. I have read that the Realistic receivers of this era were heavy on bass when the "Loudness" button is pressed, and this one is no exception. Still, I'm happy with it.
It is going into service for now as my workbench receiver. The Fisher 432 I was using as my workbench receiver has dropped its left channel. It was a gradual thing in that the left channel became weak, and finally all but went away completely. I'll have to look into that problem.
But the STA-225 is finally all finished.
Finally, I have replaced the electrolytic capacitors on this receiver's tone control board.
2.2 uF and below were replaced with WIMA MKS2 film; larger ones with Nichicon electrolytics. I would have replaced the 3.3 uF units with WIMA as well, but I had a dozen or so 3.3 uF electrolytics and I thought it wise to use them rather than buying more caps.
It does sound better now. I have read that the Realistic receivers of this era were heavy on bass when the "Loudness" button is pressed, and this one is no exception. Still, I'm happy with it.
It is going into service for now as my workbench receiver. The Fisher 432 I was using as my workbench receiver has dropped its left channel. It was a gradual thing in that the left channel became weak, and finally all but went away completely. I'll have to look into that problem.
But the STA-225 is finally all finished.
--
Ron Ramirez
Ferdinand IN
