Hi Folks,
Moderators, forgive me if I am posting in the wrong forum. I am in desperate need of four (4) NPD5566 / 2N5566 dual-fet's for a repair for a friend. Have tried the google parts-mining route to no avail; I don't care about the cost (within reason
) - I am not looking for freebies, as I do realise that this stuff costs. Please, if anyone has a handful in their parts drawer that they don't mind selling, I would be eternally grateful. In turn, I have a pretty comprehensive parts collection, and am always willing to help out a fellow d.i.y'er, plus I have an enormous schematics archive of things that just aren't available in the usual public domain & am always willing to share. Thanks!
Moderators, forgive me if I am posting in the wrong forum. I am in desperate need of four (4) NPD5566 / 2N5566 dual-fet's for a repair for a friend. Have tried the google parts-mining route to no avail; I don't care about the cost (within reason
) - I am not looking for freebies, as I do realise that this stuff costs. Please, if anyone has a handful in their parts drawer that they don't mind selling, I would be eternally grateful. In turn, I have a pretty comprehensive parts collection, and am always willing to help out a fellow d.i.y'er, plus I have an enormous schematics archive of things that just aren't available in the usual public domain & am always willing to share. Thanks!Wonder why you think the original jfets need replacing?
I have no idea of a source of those particular National Semi parts.
google shows them being sold through Aliexpress. I have never used that service myself.
Might have to sub something else from Linear Systems, lsk389,lsk489? need to check pinouts.
Recently found this supplier for Linear, https://www.trendsetter.com
I am looking at the specs for 2N5566,
Idss = 5 - 30mA
Vp = 0.5 - 3 V
Good Luck
I have no idea of a source of those particular National Semi parts.
google shows them being sold through Aliexpress. I have never used that service myself.
Might have to sub something else from Linear Systems, lsk389,lsk489? need to check pinouts.
Recently found this supplier for Linear, https://www.trendsetter.com
I am looking at the specs for 2N5566,
Idss = 5 - 30mA
Vp = 0.5 - 3 V
Good Luck
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Long shot, but might be worth sending a PM to the thread starter below (though it's dated 2003!). You never know he might have some left:
http://www.diyaudio.com/forums/analog-line-level/13320-j-fet-chip.html
Good luck!
http://www.diyaudio.com/forums/analog-line-level/13320-j-fet-chip.html
Good luck!
Vishay N-Channel - 40 V JFET | Mouser
Theese are suitable singles replacements.
All You need to make them work OK, is to pair them up end let them have good thermal contact. LS844 should also do the trick.
Theese are suitable singles replacements.
All You need to make them work OK, is to pair them up end let them have good thermal contact. LS844 should also do the trick.
Thanks for the help all! Will try the aforementioned sources. As for this being the suspect part, evidently these amps are known to cook these dual-fets and an associated zener fairly regularly, causing symptoms such as moderate offset (1.3 vdc), and loud intermittent transient pops in the affected channel, which is what this amp is doing. Also, amp was completely recapped already, and the outputs and drivers replaced previously with matched pairs.
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