A neat loudspeaker experiment (with a moving diaphragm) is to change the Fs of the speaker using small weights on the dust cover (the small cover in the center of the diapragm). Buy two identical INEXPENSIVE drivers and show how the response changes. Amazingly, it can even be calculated...

This makes clear the other thread - Oh well... An output stage of a power amplifier is basically a trans-admittance stage. What this means is as follows: The output impedance is high (NOT low) Therefore, it controls the current to the device. The amplifier converts a low voltage signal at...

I think tailspn is referring to that some amplifiers are voltage devices (and therefore have low output impedance). Examples are devices used to power electrostatic drivers. Regular power amplifiers for magnetic voice coil systems are generally trans-addmittance stages (i.e. Voltage to Current...

The play (about a soldier who is forced to sell his body to scientific experiments to support his mistress and child and pays with his mind) has music and songs by Tom Waits and was directed by the Avant-Garde director Robert Wilson. The play is currently playing (for 5 more days) at UCLA...

I agree with adrzejpw. It depends on what you are listening to. Headrooms processor does not influence recordings that are made with 2 microphones in an acoustic environment - see ma recordings e.g. Calamus the splendor of al-andalous. However, on subpar or average recordings (where you have...

It is interesting that a movie that is so valley (San Fernando) centric will interest those outside of the valley. I worked in a building next to La Petit Chateau (where Sandler ruins the Bathroom), a small french place on Lankershim. Perhaps if you are not from the valley, you would not see all...

Happy Birthday Todd

Does anybody know of another Sony product that was manufactured for 12 years??? A TV perhaps? PCDP? Toilet seat warmer? Video game console? I thought the Japanese law required manufacturers to set fire to their design plans every 6 months (in a corporate sponsored bonfire).

My favorite cookware list: Le Creuset for Dutch ovens and enamelled pots and pans (also make Screwpull - the best wine bottle opener I tried) Calphalon for stainless stock pots and non stick pans for omlets and pancakes (although Berndes are better) Mauviel for Copper pots and skillets...

2000mAh at www.batteriesamerica.com Those extra 200mAh are lifesavers...

112 deg. F is hot? Seriously, my class A back home runs at almost 100 deg C (Japanese TO-3) for many years. Can cook eggs on them. Fans just add noise...

Quote: That is, put a stereo test tone CD in and run each signal through the pot and measure the signal with an accurate AC voltmeter. This tests the behavior of the pot under real conditions -- it's a test for the behavior you're actually interested in instead of testing the mechanism that...

You will need 6 batteries of 1.5V each connected in series (for 9 Volts). You will need a battery holder (Radio Shack), suitable plug (radio shack) and cable.

This is the time to start disconnecting circuit sections and testing continuity to ground. BTW, if I were you, I'd find the short and fix it. If you connect to an ungrounded socket and your neutral wire disconnects, you may have the 110V single ended on your headphone ground (not as much fun...

Neruda, These were Fostex full range (remarkable sound for their size). The speakers had tripod legs that were potted in special sand. AssafL.