IGBT Identifying

Here's an esoteric question...is there a way to visually identify IGBT transistors when they're installed in an amp? I have one of the last of the Forte' amps (Model 55) and was told it has MOSFETs instead of the IGBTs that Forte' used in a lot of amps. The manual says IGBTs...is there a way to tell from the markings on the transistors themselves? Thanks in advance.
Hi Wolfie,

If the markings are visible, one of them will hopefully be the manufacturer's part number, which will probably consist of a string of half a dozen or so (perhaps more) letters and numbers.

Just enter that part number into Google, and you'll probably find a link to the manufacturer's data sheet.

Best regards,
-- Al