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After more than a decade, I've finally made more SimpleP48 mikes for my own use ... but found the passage of time hasn't been kind to my eyes.
I found several errors and misleading info in my June 2020 document.? In particular, the first diagram is wrong? and likely to cause errors for newbie & guru alike.? To my horror, I had intimated that gurus Henry Spragen & Rick Wilkinson wired their versions wrongly. :o? Mea culpa, mea culpa, mea maxima culpa
I'm really sinking deep into my beach bum existence but these sins prompted me to revise, correct & expand the document in my Files.? Please let me know if you find anymore errors or disagree with what I've written.
I'm indebted to various people who have sent me Word documents converted from the PDF in my Files as I've lost all my original work this Millenium in a number of HD crashes.
I can heartily recommend capsules which have wires already soldered to them to avoid damage from inept & blind beach bums waving soldering irons.
On the bright side, the new capsules eg the PUIs available from Mouser really show what is possible to rival $$$ commercial microphone offerings.
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Awesome, thanks for the update, and thanks for keeping the
SimpleP48 dream alive. :-)
On 11/27/23 21:51, Richard Lee wrote:
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After more than a decade, I've finally made more SimpleP48
mikes for my own use ... but found the passage of time hasn't
been kind to my eyes.
I found several errors and misleading info in my June 2020
document.? In particular, the first diagram is wrong? and likely
to cause errors for newbie & guru alike.? To my horror, I had
intimated that gurus Henry Spragen & Rick Wilkinson wired
their versions wrongly. :o? Mea culpa, mea culpa, mea maxima culpa
I'm really sinking deep into my beach bum existence but these sins
prompted me to revise, correct & expand the document in my
Files.? Please let me know if you find anymore errors or disagree
with what I've written.
I'm indebted to various people who have sent me Word documents
converted from the PDF in my Files as I've lost all my original
work this Millenium in a number of HD crashes.
I can heartily recommend capsules which have wires already
soldered to them to avoid damage from inept & blind beach bums
waving soldering irons.
On the bright side, the new capsules eg the PUIs available from
Mouser really show what is possible to rival $$$ commercial
microphone offerings.
|
Thanks Richard. Every time I build one and explain to someone?that there are two components, they default to "must be something cheesy?or wrong" Nope just really simple?and elegant way to do things.?
Jules
Awesome, thanks for the update, and thanks for keeping the
SimpleP48 dream alive. :-)
On 11/27/23 21:51, Richard Lee wrote:
After more than a decade, I've finally made more SimpleP48
mikes for my own use ... but found the passage of time hasn't
been kind to my eyes.
I found several errors and misleading info in my June 2020
document.? In particular, the first diagram is wrong? and likely
to cause errors for newbie & guru alike.? To my horror, I had
intimated that gurus Henry Spragen & Rick Wilkinson wired
their versions wrongly. :o? Mea culpa, mea culpa, mea maxima culpa
I'm really sinking deep into my beach bum existence but these sins
prompted me to revise, correct & expand the document in my
Files.? Please let me know if you find anymore errors or disagree
with what I've written.
I'm indebted to various people who have sent me Word documents
converted from the PDF in my Files as I've lost all my original
work this Millenium in a number of HD crashes.
I can heartily recommend capsules which have wires already
soldered to them to avoid damage from inept & blind beach bums
waving soldering irons.
On the bright side, the new capsules eg the PUIs available from
Mouser really show what is possible to rival $$$ commercial
microphone offerings.
-- Best Regards,
Jules Ryckebusch
214 399 0931
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Is revised version of SimpleP48 ready? I would be very grateful for the link.
Kind Regards, Andrzej Sochon
On Tue, 28 Nov 2023 at 14:34, Jules Ryckebusch < ryckebusch@...> wrote: Thanks Richard. Every time I build one and explain to someone?that there are two components, they default to "must be something cheesy?or wrong" Nope just really simple?and elegant way to do things.?
Jules
Awesome, thanks for the update, and thanks for keeping the
SimpleP48 dream alive. :-)
On 11/27/23 21:51, Richard Lee wrote:
After more than a decade, I've finally made more SimpleP48
mikes for my own use ... but found the passage of time hasn't
been kind to my eyes.
I found several errors and misleading info in my June 2020
document.? In particular, the first diagram is wrong? and likely
to cause errors for newbie & guru alike.? To my horror, I had
intimated that gurus Henry Spragen & Rick Wilkinson wired
their versions wrongly. :o? Mea culpa, mea culpa, mea maxima culpa
I'm really sinking deep into my beach bum existence but these sins
prompted me to revise, correct & expand the document in my
Files.? Please let me know if you find anymore errors or disagree
with what I've written.
I'm indebted to various people who have sent me Word documents
converted from the PDF in my Files as I've lost all my original
work this Millenium in a number of HD crashes.
I can heartily recommend capsules which have wires already
soldered to them to avoid damage from inept & blind beach bums
waving soldering irons.
On the bright side, the new capsules eg the PUIs available from
Mouser really show what is possible to rival $$$ commercial
microphone offerings.
--
Best Regards,
Jules Ryckebusch
214 399 0931
|
Andrzej Sochon:
>Is revised version of SimpleP48 ready? I would be very grateful for the link.
/g/MicBuilders/files/Ricardo/SimpleP48 ------------ Best regards, Goran Finnberg The Mastering Room AB Goteborg Sweden E-mail: mastering@... Learn from the mistakes of others, you can never live long enough to make them all yourself.??? -?? John Luther (\__/) (='.'=) (")_(") Pyret, Ranglet, Aron, VovVov, Nero & Smurfen:RIP
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Thank you very much for the link. Maybe I am wrong, but in my opinion the only difference is that connections to XLR pins 2 and 3 are swapped. It makes the signal phase is reversed. Does it make difference in sound quality? I guess it has no influence. (I ignore C1 capacity?.)
On Tue, 28 Nov 2023 at 16:52, Goran Finnberg via <mastering= [email protected]> wrote: Andrzej Sochon:
>Is revised version of SimpleP48 ready? I would be very grateful for the link.
------------
Best regards,
Goran Finnberg
The Mastering Room AB
Goteborg
Sweden
E-mail: mastering@...
Learn from the mistakes of others, you can never live long enough to
make them all yourself.??? -?? John Luther
(\__/)
(='.'=)
(")_(") Pyret, Ranglet, Aron, VovVov, Nero & Smurfen:RIP
|
the only difference is that connections to XLR pins 2 and 3 are swapped. It makes the signal phase is reversed. Does it make difference in sound quality? I guess it has no influence.
(I ignore C1 capacity?.)
Phase matters if you are using other mikes in the same setup.? My original drawing with pins numbered wrongly, showing the wrong side etc. was less than helpful.? I try, even in my old age, to make sure my documents actually HELP people to do stuff right. The correct choice of C1 will help with the cases of 'blocking' reported by some when the mike is overloaded.? At the risk of pontificating from the wrong orifice (yet again), Guru Henry's 1u in his , will be -1dB @ 20Hz.? This is appropriate for a Music / Recording mike but a measurement mike should be better than 0.2dB @ 20Hz so my antique B&K 2307 chart recorder won't pick it up.
I should also say more about Cardioids ... and also about "3 wire" capsules (now available from Primo, Transound & PUI) and SimpleP48RCA
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Your comments are very valuable, thank you very much. As far as I remember, in 2017 I discovered Tom Benedict articles, and realized a simple schematic for a pair of EM172 capsules according to "DIY Microphone: EM172 Capsule and XLR Plug". This solution worked very well for me in recording the voices of bats and birds. Then I made a slightly modified version of Zenerless Alice + Sziklai.? Since I always used only one pair of EM172, I did not pay attention to phase relationships.
Me too found the unpleasant passage of time, I have difficulties with my eyes, body,? and in understanding simple things. Professor Vetulani, Polish psychopharmacologist, neurobiologist, biochemist, professor of natural sciences, when the students wished him good health on the occasion of his 80th birthday, said this:?
"Do not wish me health, but good luck, because the sailors of the Kursk submarine were all in good health, but they were not lucky..."
So let me wish you satisfaction of your work, and ... a lot of good luck!
Kind Regards, Andrzej
On Tue, 28 Nov 2023 at 21:21, Richard Lee < ricardo@...> wrote:
the only difference is that connections to XLR pins 2 and 3 are swapped. It makes the signal phase is reversed. Does it make difference in sound quality? I guess it has no influence.
(I ignore C1 capacity?.)
Phase matters if you are using other mikes in the same setup.? My original drawing with pins numbered wrongly, showing the wrong side etc. was less than helpful.? I try, even in my old age, to make sure my documents actually HELP people to do stuff right.
The correct choice of C1 will help with the cases of 'blocking' reported by some when the mike is overloaded.?
At the risk of pontificating from the wrong orifice (yet again), Guru Henry's 1u in his , will be -1dB @ 20Hz.? This is appropriate for a Music / Recording mike but a measurement mike should be better than 0.2dB @ 20Hz so my antique B&K 2307 chart recorder won't pick it up.
I should also say more about Cardioids ... and also about "3 wire" capsules (now available from Primo, Transound & PUI) and SimpleP48RCA
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Hi Richard,
The original doc, together with other comments and notes in this group, were sufficient for me to successfully make a couple pairs of simpleP48 mics that work very well. Nonetheless, thanks for interrupting your beach routine to update it. I like the expanded design discussion and the improved drawing. Looking forward to reading it more carefully.
Only small suggestion - maybe changing any reference to Primo EM172 to EM272? The 172s have been discontinued for a while.
Cheers.
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Andrzej Sochon