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Part Sourcing Assistance/Advice Thread


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Anyone have an extra Alps SPUJ190900 input selector switch for a Dyna mini? Just ready to order parts and Mouser is out of them.

 

They do have the SPUJ1901000 in stock at 4x the price; same switch with snap in terminals.

 

 

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EDIT: went ahead and ordered both just in case

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Never underestimate the obfuscating twats on diyaudio I asked a question regarding Kemet vs. Vishay-Polytech tantalum-polymer capacitors (since the Vishays are considerably cheaper and appear to

Started one last night, actually.

there needs to be a Mouser Prime service

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Perhaps a better moral question would be the horribly flawed EU lead study which resulted in ROHS. Arguably, this has contributed to millions of tons of failed consumer electronics clogging landfills. The US military still does not allow lead-free in its equipment, and I don't use the crap either.

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I am still in the process of sourcing for a KGSSHV Carbon build. Unfortunately I was send one wrong board and I can´t reach the seller any more ?

So, if anyone has a KG SiC PSU PCB in Landscape with +15V -15V -400V I am happy for your PM. Additionally if anyone needs a +400V + Bias PSU, feel free to contact me.

Edit: I got an 8 Dollar coupon at JLPCB so I thougth paying 8,50 dollar for 5 PCBs is probably worth it. 

So I will give away 4 of the +-15V -400V PCBs for cost of shipping. I am located in Germany.

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  • 6 months later...

In case this is of interest to anyone.

Took me a while to find it: Kester 44 Sn62Pb36Ag2 (2% silver eutectic) solder in .025"/.6mm diameter.  Very good price too - $55.18USD in 1lb spool. Typically found them at over $100 USD with 25 minimum order.

Vendor is Concorde Electronics, part # 24-7150-0018.  https://www.concorde-electronics.com/products/kester-24-7150-0018.html

Bad news - shipping is $12.26 USD, good news - fast shipping. Got it in 4 days.

I set out looking for the one in .02"/.5mm diameter (24-7150-0010) and finally found it at R.S. Hughes with no minimum order and less than $100 USD. Only to be told a few weeks after placing my order that they do not have it in stock. 

 

EDIT: I found this .025"/0.6mm diameter solder to be a good compromise between soldering of through-hole components and SMD. It works well for most SMD except those really tiny ones which I still prefer the .02"/0.5mm diameter. But the .02"/0.5mm diameter solder is a bit too small for through hole component soldering. 

 

Kester 44 solder.JPG

Edited by mwl168
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I'm looking for some help/advice on replacing the primary choke in the Menace TC power supply. It's currently an open frame Triad, model C14X (6H/200mA/150ohm) and I'd like something that better matches the electraprint output transformers from an aesthetic perspective.  The logical answer is a Hammond something from the 193 series of enclosed/potted chokes and the closest that I can find is the 193H (5H/200mA/63ohm) but that's obviously not that close with both resistance and inductance being different.  I'm wondering if the 193J wouldn't be the better choice as more filtering and less voltage drop shouldn't upset things too much. I don't have the ability any more to model this so I'm looking to the folks here to help sanity check my choice. I looked around for other possible alternates and I'm not seeing much short of simply having Electraprint build one, which doesn't looking all that expensive.

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The difference between 5H and 6H almost certainly won't be noticed. You can add a 90R resistor in series if you need to make up for the voltage drop, but again, it is difficult to imagine that making much difference. The J is probably an upgrade, so all things equal, I'd use that one.

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Anyone know of a supplier for old school push button power switches?

I'm looking for something like the one below. They were everywhere on 70's Japanese consumer electronics. Sansui, Marantz, Kenwood. These latched on-off. Press to turn on. Press again to turn off. You pressed them in about 5 - 10 mm (half-inch) and usually had round aluminum buttons.

I still see these used in some new (typically high end) audio gear. But can't find anything at Mouser, Digikey, Arrow, etc.

 

pushbutton.jpg

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You meant this? The button diameter is either 5mm or 10mm. I got bored of the illuminated switches after using so many of them and changed to this simple switch a while ago.

spacer.png

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Yup, got tired of the illuminated anti-vandal switches that we usually use. 

Those look like the type of switch I had in mind. Can I ask where you found them?

 

edit: Looks like Mouser and probably others have them. I didn't recognize the switches without the buttons (caps sold separately).

         How smooth does the model in your photo feel when you press the button?

    

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With my own machined aluminum buttons, they are quite smooth. You need to press a bit harder than the illuminated switches though. They also sell plastic buttons but the feeling was not so great.

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Anyone know a place that might sell a replacement input jack receptacle for a Fluke 189? I was able to find it at Newark and Allied for ~$20, but it's on backorder at both of them.

jmrPo3U.png

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Fluke doesn't seem to have it for sale through their parts department, probably because it's not considered a "user replaceable" part. I went ahead and backordered it from Newark instead.

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3 minutes ago, Craig Sawyers said:

Fitz you're the second person I've heard of (recently) who have had failure of Fluke multimeter input jacks.

It's actually a years old intermittent connection that's gotten worse over time, and I'm tired of having to press/wiggle the plugs to get it to work. This meters been treated pretty rough, so I'm not that surprised by it. It was the one I used in the field, so it got banged around six ways to Sunday.

Edited by Fitz
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