Home » VintageKustom.com » Replacement Part Suggestions » part number SL14228 (for Commander amp)
part number SL14228 [message #22637] Wed, 11 March 2015 10:34 Go to next message
jeffreylee is currently offline  jeffreylee
Messages: 8
Registered: August 2012
Location: sranton pa
Junior Member
This transister has 14 feat/prongs and is located behind the bass knob on the circuit board .Lokking to buy at least one or more if possible .
Re: part number SL14228 [message #22638 is a reply to message #22637] Wed, 11 March 2015 12:17 Go to previous messageGo to next message
Messages: 1985
Registered: April 2003
Senior Member
That is a dual op amp chip, Kustom part number 007-7015-00. The generic number is uA739 or RC4739. It hasn't been made in many years.

The board can be modified to accept a modern 8 pin chip or you can try and find a used or a new old stock one.

Is the one in your amp dead or are you just looking for backups?
Re: part number SL14228 [message #22641 is a reply to message #22637] Wed, 11 March 2015 13:56 Go to previous message
stevem is currently offline  stevem
Messages: 4532
Registered: June 2004
Location: NY
Senior Member
star electronics (877-240-8595) shows some NTE725 in stock which is a drop in replacement!
Do yourself a favor and install a 14 pin socket on the board you are working on!
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