Fairchild S42728 replacement needed

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Hello, I am trying to bring an old amplifier back to life. The amp uses the Fairchild part S42728. This is a small signal transistor TO-39 case. I can not find any info for this transistor. I tried Fairchild, they were no help. The amp was made in the late 1970's. Thanks, Don
 
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This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.