Home » VintageKustom.com » Repairing Kustom Amps » Kustom Bass III Channel 1 Hiss (extreme amount of hiss on channel 1 board (PC5127))
Re: Kustom Bass III Channel 1 Hiss [message #28738 is a reply to message #28683] Tue, 09 August 2022 18:40 Go to previous messageGo to previous message
thespeakerport is currently offline  thespeakerport
Messages: 11
Registered: July 2022
Junior Member
Alright, so I just finished using the coupled 2.2uF caps, had one end tied to ground and with the other end probed all the legs of all the transistors. There was no change in behavior. A couple of point it did reduce the hiss as if I turned down the treble, but you could still hear it present. I do have one question about the polarized caps in this unit. There were 7 of them that I replaced with Nichicon FG series. the originals almost looked like they were tantalum caps, not the traditional can style electrolytics. Could this have anything to do with the fact that I replaced them with electrolytics? I a replaced tons of tantalums in the past with electrolytics and never had any issue like this. Unfortunately, I do not have the originals to put back in...I had already pitched them.

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