Where you getting your Sankin 2SC3264 or 2SC3858?

[drewl]

Got a blown Eden amp with four of the big Sankin output drivers.

It looks like PNP 2SA1494's are available but not the NPN's.

What are you guys using?

Thanks.

[Jon Snell]

https://www.cricklewoodelectronics.com/2SC3264.html
https://www.digikey.co.uk/product-de...494-ND/3929367

Obsolete parts are difficult to obtain unless you risk fleabay.

[nevetslab]

I've been using MJL21193 and MJL21194 200W Bipolar xstrs (On Semiconductor), which is a different package (TO-3PBL), so there is hold drilling/tapping involved on the heat sink. I just tried to upload the data sheet from my computer, but the system isn't allowing it to be viewed. You can find the part on-line.

[drewl]

Yeah, I was thinking of doing the same as I have known good ones.

Used pulls probably wouldn't be matched.

Thanks.

[glebert]

I've been using MJL21193 and MJL21194 200W Bipolar xstrs (On Semiconductor), which is a different package (TO-3PBL), so there is hold drilling/tapping involved on the heat sink. I just tried to upload the data sheet from my computer, but the system isn't allowing it to be viewed. You can find the part on-line.

Wondering if instead of drilling a tapping a hole in the center if one could use aluminum channel to hold the transistor against the heatsink using the original holes to mount the channel. I think the original mounting holes are wider than the TO3PBL package.

[nevetslab]

That is essentially what I was doing at BGW Systems years ago. The GTA power amp PCB was laid out for the Sanken MT-200 power xstrs, with the full size of the PCB serving to clamp the parts down. When we changed to the MJL21193/MJL21194's, the PCB did just that. I did have one other PCB that used the MT-200 parts, and those, I had to add a blank fiberglass spacer between the PCB and the parts to clear a couple solder pads.

Yup....much easier than drilling and tapping the holes. Good idea!

[Enzo]

I used to buy my Sanken from these guys and never god a fake or bad one:
https://www.bdent.com/nsearch.html?c...&query=2sc3264
https://www.bdent.com/nsearch.html?c...&query=2SC3858

[The Dude]

...... and they're in stock! Good find, Enzo!

[DrGonz78]

Yup I was trying to remember B&D earlier today. Enzo got me over to them years ago. I remembered it started with a B and you know I remembered half the name at least.

[drewl]

Also great.

Sank you guys!
Or is it Sanken all y'all.