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Hi, I have to replace all the 20 transistor of my krell kst-100 power amplifier- wich are the best choice? model and company? maybe mj21195g and 6 from onsemi?
Re: Hi, I have to replace all the 20 transistor of my...
Onsemi ( which is motorola) is a good pic for replacements If youre looking at the 21195 , then there must be a compliment to that as well? 21194 or 21196
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Very nice, Amplifiers and extremely well built, but they can be very expensive to service, I can have it working and guarantee it for 90 days, realistically I can do it for under $200.00, generally around $140.00 minimum and $200.00 maximum and 2 to 4 day turnaround time, providing it does not need unavailable parts, see my feedbacks on Letgo in Fairfield California under Supertech99, I have 100% positive feedbacks and 5 star review.
A module or an amp is doing a short cicuit. It's time to check if all transistors are valid. Be careful, bipolar and FET transistors behave differently. It can help to compare one by one each transistor from the RIGHT and LEFT amps. Good luck.
check your speakers if good, there are fusible resistors found at the power line of the amplifier section of the circuit maybe its open check also the transistors if good or bad if it is driven by an I. C maybe your I. C is busted replace I. C
Sounds like the volume was way up when the iPod turned on. iPods are DC and cause a sudden thump through the speakers when they power on. If the fuse is not blown, there may be another fuse you have not seen. Most amps have three to five fuses especially a 150watt/channel like the Krell.
If it has a voltage selector for 220v, once configured it will work just fine Being electronic instead of mechanical the power frequency won't affect it. If it doesn't have a voltage selctor, don't plug it into 220.
hi please check the wiring of the output it could be short or the speaker would be short or it could be the diode at the secondary supply that had short or capacitor disconnect the power supply ans check the OHMS of the transformer .or check the transistor could be stort
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