Search results

Country of Origin is a slippery one with some loopholes. I was talking to my Vimex rep and he mentioned that they had a customer with requirements that no components come from mainland China, but they needed a rotary switch that was only produced in their China factory, so their solution was to...

True with Tayda, unfortunately not with JLCPCB. Tayda gets to a point (I think it was around $400?) when shipping goes to $1, JLCPCB just keeps going up with the package weight.

I usually go to UPS for my orders since the DHL prices went up. Speed is similar to DHL but usually 50-60% of the price. I'm way too impatient for the slow boat option. I continue to use JLC because I get SMD assembly on most of my boards, and assembly in the US is prohibitively expensive, and...

Because if I put the PCBs up then I have to post the build doc and drill template :P I'll see if I can find some time to get them up this week.

I have, but not as bad. Came out to about 30% of the declared value on a JLCPCB order. I have a couple more in process right now, we'll see what happens. UPS is the only carrier that has charged me brokerage fees. I had a reasonably large PCB order a few months ago that I carefully kept under...

Also, make sure there's nothing stuck to the board like this.

That's not even close to enough my dude, this thing pulls 700mA from a 12V supply when it's fully warmed up, which means to get it warmed up I would recommend at least 800mA, but ideally 1A if you can get it. EDIT: also don't power it up with the NE555 removed, it causes the MOSFET to overheat.

What power supply are you using?

Looks to me like those are the letter O and not the number 0. So possibly an abbreviation for positive and negative Output voltage? Reasonable to assume that's the rail voltages for the NE5532

I dunno. This thing. It's a pedal or something.

Quick update on this, Haufe has been sending me another email every few days asking for more little bits of information about who I am and how I plan to use these. They still haven't sent me a quote for them.

True, that's why we still shop there even without the coupons, but they used to be even more discounted.

I mean you basically already did, if a multimeter set for resistance is showing a high resistance or an open, then the primary of the transformer is damaged. So if you want to double check obviously that's not a bad idea, but I trust your readings. I've had this a couple times as I've tested...

You're probably right. Haufe asked for a bunch of my information so they can set me up as a customer in their system, then they can process a quote for me for a prototype/evaluation run of 10 units.

DCR at pins 4-5 should be around 2.4kΩ, if you're reading more than that then it could indicate damage to the transformer. An open primary would certainly result in a very low/thin XLR output. I'm all out of transformers at the moment but I'm expecting to get a bunch more in about 2 weeks, I...

I held off on the order to get another design in with it, expected delivery date for the boards is tomorrow, I will certainly find out and report back.

Not yet, I should probably get going on that.

I'm curious enough to try a couple of the Haufes out, so I asked them if I could make a small batch order for evaluation. I'll let everyone know if it works out and I can make a handful available for those that are also curious.

So apparently Haufe was just waiting for some hack masquerading as a company to shoot them an email. They sent me a datasheet this morning. My suspicion was correct, the ST-8161 is basically a D.I. transformer, which if you run it "backwards" becomes a mic input transformer. The frequency...