Hello.
Need help for find analog or original of 2 power transistors 2SC2565 & 2SA1095.
Very many fake .......
Thanks
Need help for find analog or original of 2 power transistors 2SC2565 & 2SA1095.
Very many fake .......
Thanks
Google them
There are transistor equivalent sites, and some sites give original specs, and equivalents below.
First rectify what caused failure, and if possible put a slightly higher rated part.
European B series, and American 2N series are also made.
Location?
There are transistor equivalent sites, and some sites give original specs, and equivalents below.
First rectify what caused failure, and if possible put a slightly higher rated part.
European B series, and American 2N series are also made.
Location?
Google won‘t help you find real ones - only generate hits on their paid advertisers’ sites. Unfortunately there is no equivalent for those types. Funky two-hole flatpack case that nobody makes anymore, and 80 MHz fT. No BD or 2N type is even going to be close. The circuit might work fine with normal 20-30 MHz output transistors like 2SC5200’s, MJW3281’s, or whatever the latest Sanken types are, but still you’re stuck having to shoehorn in a different package.
I have come to keep defective originals to have physical references (weight, size, particularities, references printed in the mass) to compare with what I can find to buy.
The only reliable way to find this kind of transistors is to buy another amp that uses them and to recover the parts, and for that it takes long hours of cross-checking to find the devices.
follow wg.ski's advice for "equivalents" and buy them from a reputable retailer.
The only reliable way to find this kind of transistors is to buy another amp that uses them and to recover the parts, and for that it takes long hours of cross-checking to find the devices.
follow wg.ski's advice for "equivalents" and buy them from a reputable retailer.
Mount equivalents on biggest heat sinks that will fit chassis, use insulated wires to original PCBs.
TO-3 if possible, or a large rectangle package.
MK 15003 / 15030, and complementary should work, I think
TO-3 if possible, or a large rectangle package.
MK 15003 / 15030, and complementary should work, I think
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MJ15003 is TO-3, rectangular TO-220 package is MJ15030.
I typed MK by mistake in the earlier post.
Other types may also work, but these seem to be in current production at a reputed factory.
I typed MK by mistake in the earlier post.
Other types may also work, but these seem to be in current production at a reputed factory.
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Depending on what it is the 15003/4 may work. Usually you have a hard time shoehorning in TO-3’s in place of TB34’s. There is one model of NAD amp that apparently had the heat sinks set up for either TO-3 MJ’s or TB34 C2565’s, but that is the exception not the rule. Why they would have used such disparate choices (3MHz vs 80) as alternates just defies comprehension. One would expect alternates to be closer to one another. Unless it really was just to save a few pennies on the drill pattern. Even that doesn’t make sense because C2565’s were EXPENSIVE. NEC made cheaper ones in the same case that has an fT around 10. With most amps that take take TB34’s or MT200’s you need to pull the heatsink, drill in the center between the two holes, and drop in T0-3P. The holes in the PCB will line up. You CAN get Sanken outputs that are as high as 50 MHz in regular TO-3P, if you wanted to try to keep as close as possible to the originals. You may not even notice a difference with run of the mill 20-30 MHz common types. You might going down to 3-4 MHz.