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Originally Posted by JamesL /img/forum/go_quote.gif
I'm not sure if this has been addressed before, but will beezar be stocking any of the other transistors again? 2SC3422/2SA1359 or 2SC2238/2SA968
MCM seems to have at least one of each pair backordered or discontinued.
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BMF has described this pretty well, but let me give you the specifics.
It pains me to report that the 2SC3422/2SA1359 has very suddenly attained the status of
more-than-rare. What complicates this is that this Toshiba pair came in two versions - high gain ("Y" version) and low gain ("O") version. The gain versions were marked on the transistor, as it turns out. Up till now, every transistor pair I've supplied for 2SC3422/2SA1359 has been the high gain versions. Unfortunately, the last shipment I received was in GREEN, and they were all marked "O". Try as I could, from several different vendors and my own exhaustive exploration, the high gain versions have disappeared. As with most of these complementary transistors, it may be that you can find a few of the NPN versions, but the PNP's are almost impossible. Of course, with a diamond buffer, you need both. One without the other is useless. Moreover, one with high gain and one with low gain is just as useless.
Similarly, 2SC2238 can be found in places, but not 2SA968's - at least genuine ones. The last shipment I got were "K" versions, which I believe mean Korea. I'm probably going to sell them that way - with full disclosure, but so far - there are not even clones or copies for the 2SC3422/2SA1359's. I'm afraid they may have been a unique/singular discovery by Steinchen and while the standard was taken up by the rest of us to follow on, it wasn't enough to maintain the supply.
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Also, is it common for the lansing cases to have a slightly bulged top?
I tried clamps and heavy weights to try make the top of the case flush with the panel, but with no luck.
I was hoping that I'd have better luck if I purchased another one.
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Sorry about that, but yes - they all seem to have that slight bulge. If you're like me and several other folks, just bend it back down. The case seems to be pretty tough. I doubt seriously that you're in any danger of buckling or anything. Standing on it might be a reasonable option, too. I tend to push the front plate up slightly within its tolerance so that the bulge is disguised.
What can I say? Hammond cases are so warped sometimes it almost takes a pry-bar to get the top plate to slide into the slot. Beyond that, I speak from direct experience now - custom Hammond jobs are machined
after anodizing. At least Lansing waits until the machining is done to make it look right.
Sometimes I think us DIY-er's are way too picky, though.
I mean, what would it take you to try to duplicate that slot pattern - even with a decent mill it would be a feat, unless it was CNC? I'm just happy that we have several vendors to pick from and they'll work with us a little bit.
Heck, a couple of years ago in this community, the opportunity to get a pre-machined case for a DIY design was a flat-out impossibility. It's funny how a couple of designs and group buys have changed the standards for everyone.
Sorry - guess I'm venting a little bit ...