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Anybody know what it costs to renew a drivers license in Gauteng? Government websites don't state the amount and the testing centre doesn't answer its phone at all...

There is no pot of gold at the end of this. Perhaps the journey is not much reward either but I shall try to keep it mildly entertaining. OVERTURE AND BUGGERUP. Our quietest member is building a power amp and asked for advice by PM... My phone line/adsl was dead so a barrage of SMSs were...

Our quietest member has been building a Mosfet amp and sent me PM for advice. It was the beginning of a long saga resulting in him mailing me the whole thing to try to figure it out. The problem was simple: Counterfeit Mosfets Here's a pic I'm a bad photographer but you should be able to...

So many threads... OK, so you can know what you're up against, here's the big pic, and the long story you'd expect by now. Scroll down to PRICE if that's all you wanted to know. click for latest pic, v.0.9 at the moment. I'll try to keep it interesting without mentioning Irishmen and bars...

I'm trying to figure out what the chipamp in the Steinhart TR-80 amplifier is. It appears to be one of the Sanyo STK ICs that were popular in mini-hifis in the 90s, but the number has been sanded off. It has 16 pins, with + inputs on pins on 1 & 16, like the older types (ie STK4152II etc, but...

Seeing as the general consensus seems to be that there may be stupid people, but that they never have stupid questions, try this one: Say I have a pair of oscillators with just 2nd & 3rd harmonics way down low in the noise floor and I want to check the IMD of an amplifier. Now the desirable...

Just so we don't invade Mafioso's thread at http://www.avforums.co.za/index.php/topic,3265.0.html even further. As suggested by Ampdog, a topic on high frequency loading of amps. I think one can also consider other stability issues (loop compensation) with this, as the same parts will burn if...

"In the cable" the impedance is low. Ie, one end of the conductor (the driven end) is at a low impedance, so the voltage on the whole conductor is controlled by the driver chip, much more than by the interfering signals. If both ends of the cable were connected to a high impedance, the...

Continued from http://www.avforums.co.za/index.php?topic=2962.0 So the lucid moment finally did present. Gert was right on the money. It was the tray switch. The tray would open, and close again immediately before you get a chance to put the disc in. Seeing as there are more of the members...