Just adding to the requests for recent leads on MN3007s.
I've got a Zombie Chorus I've tried 9 different ICs in from two sellers (one in China, one in UK) and nothing's worked. Some cooked, some had wildly wrong pin voltages, some look OK on the VOM but don't send any signal to the output.
The jury's out on whether I have a build issue but I'd like to know I'm not wasting my time debugging something with a dead chip in it...
Anyone know of any reputable sellers (I'm in the UK so preferably in Europe) of MN3007 that aren't charging the earth for them?
Small Bear in the USA are unrealistic due to shipping charges
Banzai have them a bit cheaper but again have very high shipping charges
das Muskding are similar in price but much better shipping charges but it still works out almost £10 each!
A few sellers on ebay....but mostly china, or suspiciously cheap
I went too with one of those cheapo 10 chips from Ebay(China) and popped them into a working Zombie Chorus and put em to the test against the single Smallbear MN3007 I had at the time. Threw out 10 chips, ordered another 2 from Smallbear
Hobbyseason you are gent I've ordered some from das Muskding for the time being so should be good for now, I might take a punt on the ebay seller at some point as well (If I'm feeling brave lol) could be spot on, and worst case scenario, they are duds and it costs me return postage and a bit of hooha for a paypal refund
GrooveChampion, I tend to agree with you there. it's only a bargain if it actually works properly! not too concerned about the fast shipping though, just as long as it's reliable and not too slow (Couple of weeks for snail mail from half way round the world is no big deal to me) but spending a little bit more for the peace of mind that what you order will actually work properly is definitely worthwhile. One of the reasons I'm quite happy to get my smd JFET's and adapter boards all the way from Australia rather than alot of other places. I reckon das Musikding should be ok for the 3007's though.
I agree about the shipping being quite slow, even to here in the UK, this time wasn't too bad though, the chips arrived today and I tested them in a small clone board that I was concerned had some issues that I couldn't figure out. It passed dry signal fine, the LFO was working as i could here a very faint bleed through which changed as expected when I adjusted the pots, but there was no modulated signal..........the 'good value' MN3007 I bought from UK based seller couple of years ago and looked perfectly legit were suspected as the weak link as I'ddone everything else I could think of without success, so it made sense to bite the bullet and pay the premium price from a reputable seller just to make sure. So with a sense of trepidation I popped in the new chips, crossed my fingers and wahoo! all three of them worked perfectly straight away, trimmer started at halfway and gave best results at about 60-65% next stop clone theory