The "Mitey Mike" configuration is just a common-drain amplifier comfiguration. It's purpose is to provide gain approximately equal to 10K / 150 = 66.7. I...
... across ... Hello, Richard, To determine which resistor to use on the TS 140A I am using a 9V battery to power the capsule. The battery reads 9.41v on my...
Please bear with me. What if I just went along with a 1.8kOhm resistor and used the 9volt battery instead of 1.5v? Would it adversely affect the mic's...
Darren, Your measurements demonstrate a Drain current of about 110 uA. With the 6.8 kOhm resistor (the value of 1.8 kOhm was my mis-reading of the data...
Aaron, Yes, I got a similar reply on a different message board telling me to add a capacitor from the positive lead to ground just before capacitor 1 in the ...
Hello, I'm Stan, electronics was my hobby as a kid. I understand it a little but I'm clueless as to design. I have an unusual project,to build a mic system for...
Stan, Pretty much you can just parallel the mic capsules, lowering the supply resistor value to keep the current the same - so instead of (say) 10k for one...
Hello, Looking for words... ... I don't understand almost nothing in electronics, but one friend (engineer) tells me about capacitors in the standard phantom...
Hi Oswaldo, Your question reminded me of an article I read many years ago about capacitors in audio, by Walt Jung. So I did a quick search, and I found that he...
... (engineer) ... reason very ... require a ... continuous, ... loaded ... has a ... poliester, ... poliester ... Hi, Oswaldo. Thanks for visiting my site....
Your site is great. Thanks for put so much information an so clever. What do you think about Stan yesterday's mail? Is there any site in the web with some...
... the web ... Thanks Oswaldo. I thought Stan's post was interesting; you could probably do something very creative with that. I'm pretty sure that people...
... dB. Do ... better noise ... some ... Eric, I guess I am having trouble with the learning curve of calculating the resistor value. 40kOhm cuts my 9 volt...
... Splitting it in half will give you the maximum signal swing. This being a unity gain source follower circuit, the sensitivity will be about the same...
I still use tantalums. Nice article but good tantalums didn't exsist 25 years ago. The cover photo of the article shows the caps in use 25 years ago. Today...
Hi Rich, I agree that tantalums are a nice small package, tighter tolerances, dependable, but somewhere (and I can't remember exactly where) I read something...
Hi there, I got several ideas on pzm designs myself (maybe nothing very ingenious though), but I'm not sure about dimensions. If the mic element is close...
Can any suggest the value for the capacitor on this? It's to add a 10db pad to a Royer mod. Schematic attached. Aaron I'm going to try the resistor option this...
This came up recently at Prodigy-Pro... http://www.prodigy-pro.com/forum/viewtopic.php?t=5833 -Scott ... -- ... And you'll visualize not taking any chances But...
Hi Scott Thank you for your advice on parallel connection. I guess now I will place an order to Digi-Key for some capsules and start experimenting. Stan ... ...
(... and I spewed my opinion on this here a couple months back) The short answer is that the easiest and best performing boundary mic is where you drill the...
Well, I think I got it. Looks like a 220pF puts it in the ballpark. Phil ... lrec_URL[1]="http://us.ard.yahoo.com/SIG=129kg3c0j/M=332638.5924353.7047234.2>> 1 ...
... capacitors for audio. Thanks! I had seen these before but now I stored them in a safe place for reference. I think I might try the switch to polypropylene...
From: "Dominique" <ampgeek@...> ... Go to Crown's website and download their "Boundary Microphone Application Guide" which is in pdf form. The info you...
... A small fraction of the length of a wave at the highest frequency of interest is more than flush enough. The distance from the surface of the can to the...
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