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Old 27th February 2010, 12:05 AM   #1
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Join Date: Sep 2004
Location: MN
Default Comparing Transistor Specs for swap

I am working on an amp where a previous repair shop has changed the stock transistors from 2SD716/2SB688 to 2SA1492/2SC3856
Comparing the datasheet's I see that the voltage and current rating of the 1492/3856 devices is higher but the rest of the specs look similar. I'm curious to know if these devices are close enough to be an acceptable swap as i have more of the 1492/3856 devices on hand but not the 716/688 devices. Im wondering if there is a reason i should change these devices back.my only hesitation is the added time to order the parts.

http://www.datasheetcatalog.org/data...NGS/2SB688.pdf

http://www.classiccmp.org/rtellason/...ta/2sa1492.pdf


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