I just fired up the TSB-140A. I'm guessing it is about 0.1mA. I got two readings, 0.092 and 0.097. That is, approx 1V thru a 10kR resistor. I'm going to try...
... That's too bad, I was thinking it would make a reasonable weight dummy head. I also struck out trying to find any Nerf type balls--I figured toys-r-us or...
Hello, Doesn anyone here have info on how to power the Audio-Technica ES943/C? (in case a DIY powering solution is better, etc) Also info on possible mods on...
Showing off a little book learnin' here... If you managed to put all the tubes into the space of one, you'd get the same effect. So that's how the current...
... Now there's a thought. I have a 30" or so length of 8mm aluminium tube. I could file a load of slots in it and pop a WM61A in one end :-) -- Neil Tungate ...
... My workhorse head was made from an inflatable ball. The skin is closed cell foam ... it came from Toys <MIRROR>R</MIRROR> Us and I believe was call "Soft...
... When I was a nerd child back in the sixties, Popular Electronics ran an article for a project like this constructed from soda straws called the "Sound...
... Dear Ano, I've used AT853 (not 943), only, so you'll need to check this. But I found Idss ~= 150uA or 0.15mA for at AT853. A 9V battery with a 27kR souce...
Here is the info I got on the FET types in the capsules we ordered that contain them: TS-52B SANYO 2SK596 TSB-55A NEC 2SK1109 TS-60A SANYO 2SK596 TS-94A...
Hello Richard, ... approx. ... Thanks, this is about the same as I use for my Sennheiser caps except that it's a 2-wire setup. ... to ... Does anyone here have...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the micbuilders group. File : /FET Data...
micbuilders@yahoogrou...
Aug 2, 2004 5:51 am
2105
Date: Sun, 01 Aug 2004 21:10:04 -0700 From: Bob Cain <arcane@...> Reply-To: arcane@... Organization: Arcane Methods -...
Hello, Maybe I should just give the WM-61A a go and play around with it. It's cheap enough and there's info on the electrical setup and mods. Do you know of...
Hello, Looking at the picture describing the Linkwitz mod I see possibilities for changing resistor values for various attenuation factors. If I'd have to...
Interesting... thanks! I ended up dissecting a TSB-55A after screwing up the Linkwitz mod, and figured I'd set the FET aside for possible use with a TSB-165A...
Ano, You might want to google the Knowles website. It has a lot of information about making directional microphones from arrays of omnis. The short answer...
Ano, with the typical size of the Pan capsules small size and stealth kind of go away obviously with multiple units. The smallest I could imagine would be two...
The '2S' is often dropped from the ID. Also they are typically binned by IDSS down to a 2-1 range, sometimes with a little paint dot to indicate which range....
... If anybody gets input on how to buy from these guys please let us know. I'd like to check out: http://www.primomic.com/products/em-21.htm Bob -- "Things...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the micbuilders group. File : /FET Data...
micbuilders@yahoogrou...
Aug 2, 2004 11:12 pm
2116
I have placed data sheets for the 2SK596 and 2SK1109 FET types in the micbuilders Files section in the folder marked "FET Data Sheets". The data sheet for the...
... The 2SK596 looks a little to have about half the capacitance. I also noticed from one of the graphs on the 2SK1109 that gm is roughly proportional to the...
I need to abuse you guys' patience again. I've got DSL and I want to let a housemate get in via modem from her system through the voice channel. It doesn't...
Finally got some gigohm resistors (DigiKey was out of stock) and hooked up a couple TSB-165As with a couple different FETs (J202 and 2N4416A.) I put up some...
Hello, ... The frequency curve of the Panasonic cardioids is not that much of an improvement over my Sennheiser MKE capsules. (do they make their own...
... capsules ... I'll ... them ... Dear dayVel, Maybe this was explained already, but why do we need a resistor? Also, in one circuit it goes to ground, but...
... and ... keys ... I ... no ... and ... Without the bias resistor, the FET's bias is set by the leakage between the gate and source acting like a large...
... drives.) ... get ... When ... this ... resistor ... gigohm ... is ... so ... the ... resistor ... range. ... its ... fact ... Cool. I think I understood...
