OPEN SOURCE DIY Mic Project - ORS 87 - Stripped Down u87

[Juan Vargas]

I understood why the two sizes; i was "only" asking why two of each size

Khoron I have a bad habit from class AB audio amplifier PCB designs I always look for more options this is not the case in a mic circuit I just realize that now

 

[HalfNote5]

Pics of my build (I will fix pins for Dupoint connectors in second build as they are obstructing but convenient to use at the output):



View attachment 133052

Already fun to measure and compare. I am waiting for Arienne K87 and Vamisound's capsule (the one that is supposed to be Takstar CTS-2).
I can post picture of Vamisound's later. For those I add the de-emphasis ofc.

WAY late to the party on this one, and possibly slightly off topic, but what's the part number on that round little Zener diode? It's unusual, and I kinda wanna get some. = )

 

[Khron]

that round little Zener diode?

Which one?

 

[HalfNote5]

Which one?

Apologies! This one:
Sorry - I should have been more specific.

 

[Khron]

What's wrong with the more "usual" cylindrical glass 0.5W zeners?

 

[HalfNote5]

What's wrong with the more "usual" cylindrical glass 0.5W zeners?

Nothing. I have dozens of them, and they work great. This is just an unusual-looking little component and I was curious about it, that's all. Still am, actually. ^_^
It might be, functionally, nothing special, but it looks odd and I rather liked it.


EDIT: To partially answer my own question, and for anyone curious, it seems to be a package type SOD-57 and they look like they're usually made for higher-wattage applications. Vishay produces some. That looks like it MIGHT be a BZT03 of some sort. Probably similar to a BZT03C24, though it doesn't look like that's the exact part number stamped on it.

https://www.newark.com/vishay/bzt03c24-tap/zener-diode-24v-sod-57-rohs-compliant/dp/56AJ9691​

 

[jp8]

Probably Philips or Vishay BZT03 series, 1.3 Watt or so. Philips type is no longer active. Highly over-specified, as Khron already noted.

 

[HalfNote5]

Probably Philips or Vishay BZT03 series, 1.3 Watt or so. Philips type is no longer active. Highly over-specified, as Khron already noted.

Thanks! And yep, to the over-spec. Found that out when I located some in that form factor. Might be handy for other things but you don't need a 600 Watt zener in a mic. XD

Still, it's a charming-looking little component. Very pleasant to look at and I was curious. Thanks, kindly! ^_^

 

[Juan Vargas]

hi guys I'm posting this data of the layout I was afraid that you guys think that I'm a "lunatic " but I say why not right? a measure the mic body that I got again and I was able to fit the layout ones again I still gonna put together the first board anyway but here how it looks now also I add an extra option of resistor R7 Mouser 580-MHR0422SA108F70 20.42 mm PD but still has the macro for a regular resistor and I laid down the D1 and no I'm not crazy good day

 

[Khron]

hi guys I'm posting this data of the layout

I understood why the two sizes; i was "only" asking why two of each size would be needed...

I see my question remains unanswered... Once again I'll say, my problem/question was NOT about why there were two different sizes for the teflon pins, but why there were two PAIRS