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Re: Capsule damage during soldering (was: Primo EM200 + simple P48)
I just use an radiator from an old computer. Drilled a 10 mm hole and it works just fine. Not as awesome as Nick's jig but surely helps. At least is good as a capsule holder.
By pmfalcman · #35761 ·
Re: Primo EM200 + simple P48
Nick from micbooster.com here, just a couple of things regarding these capsules. Operating voltages - these are specified as below. EM258? 1.5V - 10V EM200? 3V - 10V EM204? 3V -10V Of course it is
By Nick Roast · #35760 ·
Re: Capsule damage during soldering (was: Primo EM200 + simple P48)
This is the jig and heatsink we use for soldering 10 mm capsules.? The loose piece is held in place with elastic bands to keep the capsules steady and in good thermal contact with the sink.? We have
By Nick Roast · #35759 ·
Re: Capsule damage during soldering (was: Primo EM200 + simple P48)
There are big differences in lead free solders. There are some that can be soldered as easily as solder with lead and with some others your solder joints look like you soldered for the first time.
By underwood · #35758 ·
Re: Capsule damage during soldering (was: Primo EM200 + simple P48)
Lead solder has been outlawed for a while now as it¡¯s poisonous when equipment is discarded and leaches into the ground. It generally has a lower melting point and it¡¯s also more stable and a bit
By jack · #35757 ·
Re: Capsule damage during soldering (was: Primo EM200 + simple P48)
Hi, original poster here. Big thanks to Jan, Jack and others for addressing my capsule heat-damage concerns. I can approach my "sky-mic" project with greater confidence. Remaining questions:? Solder:
By John Thaden · #35756 ·
Re: Capsule damage during soldering (was: Primo EM200 + simple P48)
You can use a tiny plier with a rubber band on the handles as a tiny vice. Am Mi., 8. Nov. 2023 um 07:46 Uhr schrieb <j.postma8@...>:
By underwood · #35755 ·
Re: Capsule damage during soldering (was: Primo EM200 + simple P48)
Something to secure your capsule while soldering certainly helps. For small parts, I often use self-closing tweezers. But that may not work too well for round capsules. But maybe it works when
By @jp8 · #35754 ·
Re: Simple set up for concert recording?
If you want to build something that will Work and sounds good try these: https://www.instructables.com/Camera-Mount-ORTF-Stereo-Microphone/ It will plug into 3.5mm jack and does not need power. Best
By Jules Ryckebusch · #35753 ·
Simple set up for concert recording?
Hello, I am a new member and a newbie to recording. I am looking to create a simple, transportable set up to record live rock/jam band concerts from the audience without access to the soundboard. I
By W2HX · #35752 ·
Re: Primo EM200 + simple P48
SimpleP48.pdf in my Files has a list of resistor values and the resulting Vds for various Primo capsules and 'P48' supplies. It is likely ALL Primo capsules use the same NEC FET so the same
By Richard Lee · #35751 ·
Re: Steminc vs "Alice" Piezoelements
Great! I've just been quoted the same price for the alternatives. Hopefully I can get the shipping done to the UK. I plan to use the following Piezo preamp from the guys at Stompville.
By Fuzzyface · #35750 ·
Re: Capsule damage during soldering
Apparently leaded and unleaded solder don¡¯t mix too well
By jack · #35749 ·
Re: Capsule damage during soldering
What's the issue with this? Do the dissimilar alloys not bond well or something?
By Casey · #35748 ·
Re: Capsule damage during soldering
I don't know how it is possible to crimp to PCB pads. Spot welding is probably possible especially on the capsules with larger pads. Another possibility is spring contacts or pogo pins.
By keantoken · #35747 ·
Re: Steminc vs "Alice" Piezoelements
You should be fine with a different size. I built a couple with different ones and they all worked. Best Regards, Jules Ryckebusch
By Jules Ryckebusch · #35746 ·
Re: Capsule damage during soldering
Thanks, Scott, where can I learn more about this? For instance, do these capsules have two or three solder pads? For connecting the needed two or three leads? So then two or three smaller
By John Thaden · #35745 ·
Re: Capsule damage during soldering
Crimping is a no-heat alternative. In a factory setting it would be faster, too. -Scott
By Scott Helmke · #35744 ·
Re: Capsule damage during soldering (was: Primo EM200 + simple P48)
One thing they recommend is a metal former, basically a chunk of metal with a capsule sized hole drilled in it, with a smaller concentric hole that goes all the way through, to act as a heat sink. You
By jack · #35743 ·
Capsule damage during soldering (was: Primo EM200 + simple P48)
Forgive me if I'm highjacking a thread here (I did change the subject line), but isn't there an alternative to soldering these valuable and sensitive condenser capsules? Maybe slver clay or paste as
By John Thaden · #35742 ·