I've got a kenwood KAC- 728s amp here with one bad channel . Both output transistors are shorted and the original replacements are easily found but are pretty pricey.Is there something that can do the same job that is not quite as expensive.
Lol, I have one of those too. I can tell you the pioneer gm7200m has them in it if you want used....but I'd rather fix the pioneer. Like $7ea plus ship right? Unreal, this amp is not worth fixing for that. I bought some 7200s for under 25 each TMD. Maybe someone knows a replacement.
As pricey as these are I have found no useful replacement for them. I just get the client to help me bit the bullet at PCP and use the original pert. I believe these were LAPT transistors and so they were designed specifically for audio application.
Linear Audio Power Transistors = LAPT
If you ever do find a US replacement LMK I would be extremely interested in testing your find...🙂
Linear Audio Power Transistors = LAPT
If you ever do find a US replacement LMK I would be extremely interested in testing your find...🙂
bdent.com has them for 3.89 a piece for the 2SC4388 and 4.21 a piece for the 2SA1673. Minimum order is 15 dollars which isn't horrible. Just not sure how reliable of a supplier bdent.com is. The only other place i have seen them is at mcm electronics for 7+ dollars a piece. I'll have to see if the owner wants to spend the money to fix it.
www.pacificsemi.com has them, 2SC4388 $1.91 and 2SA1673 $2.59, there in the US too so shipping wont be too bad and the minimum is $25 which isn't too bad, (just make sure they say origial or you could get fakes).
Hmmm, $18 ship for USA. Not bad for Canada.
http://www.pacificsemi.com/Shipping.htm
Wait, the main page says flat rate USA $10?
http://www.pacificsemi.com/Shipping.htm
Wait, the main page says flat rate USA $10?
I just ordered from B&D, I needed some A1694s also. Will let you know how it works out. The website would not take my order had to call, not sure if I put something in wrong or what.
jol50 said:
They charged me $18 and i'm in San diego. i'm going to email them and ask for my $8 back😕
shagone said:
Here is what they said about the shipping so be warned:
"Ref your e-mail
We use EXPRESS MAIL FOR MOST OF ALL OUR REGULAR CUSTOMERS
because they need parts as fast as possible for service and repairs
If you like to use THE SLOW SHIPPING SERVICE 5-TO-10 working days
We will add to your file that you like the regular -SLOW SHIPPING SERVICE ONLY
Please adv,THANK YOU
Meantime , we will credit $8.00 ON YOUR NEXT ORDER"
Best regards
Omar
If the guy wants the amp fixed i'll probably just bite the bullet and get the ones from mcm. Not that i'm paying for the parts but i'd rather know they are good.At this point though it sounds like he doesn't wanna have the amp fixed.Its almost not even worth the cost of the parts to fix it.
This amp only has one of each for a channel, so it was $8 for those. I needed other stuff, so for about a $30 order it shows $6.25 shipping at B&D. This amp, same deal not worth much of anything but it says 600 watts on the front....must mean something. 😀 I think it is 100wrms x2, not bad for a high side application or small sub. What, $30-40?
Ok, forgot I ordered some 2sa1694 from a place on ebay in the UK. They came today and look nice, but they are ISC brand. All I find is this: http://www.diyaudio.com/forums/showthread.php?threadid=115281
So ISC must be legit manufacturer? They were cheap like $16 shipped for 4 thought I would test them in an audiobahn that is a little rough anyway. Can't anyone stock some Sanken in the US??? I see lots of them. Oh yeah, you don't want to stock anything I forgot...JIT...
So ISC must be legit manufacturer? They were cheap like $16 shipped for 4 thought I would test them in an audiobahn that is a little rough anyway. Can't anyone stock some Sanken in the US??? I see lots of them. Oh yeah, you don't want to stock anything I forgot...JIT...
ISC = Inchange Semiconductor Company Limited, China.
http://www.iscsemi.cn/company.asp
Its an 800wrms amp, I can't power it up enough to clip it not even close. My 4 IB 12s in the car can't take that much either, maybe 600rms according to ratings though my 420w does not do much for them xmax wise.
http://www.iscsemi.cn/company.asp
Its an 800wrms amp, I can't power it up enough to clip it not even close. My 4 IB 12s in the car can't take that much either, maybe 600rms according to ratings though my 420w does not do much for them xmax wise.
Still cheaper here if you request the $10 flat rate shipping
Post #7
www.pacificsemi.com has them, 2SC4388 $1.91 and 2SA1673 $2.59, there in the US too so shipping wont be too bad and the minimum is $25 which isn't too bad.
Correction: they are in Canada but $10 flat rate shipping is not bad.
Post #7
www.pacificsemi.com has them, 2SC4388 $1.91 and 2SA1673 $2.59, there in the US too so shipping wont be too bad and the minimum is $25 which isn't too bad.
Correction: they are in Canada but $10 flat rate shipping is not bad.
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