by Winn L. Rosch Can You Still Live with Your Stereo? Time has a way of tip-toeing past us. Before we realize it, the new car has depreciated so badly scrap dealers won't touch It, the last Congressmen we voted for are eligible for parole, and we discover those faint lines behind the tuning dial of our receiver are actually cobwebs. Hi-fi components fortunately give us the oppor tunity to outrun the ravages of time by up grading each part of our stereo system as technology leaves it by the wayside. But when is the proper time to replace a com ponent in a venerable stereo system? The primary purpose in getting new com ponents is to improve the sound. When new advances overtake the capabilities of your equipment you’ll end up listening to sub standard fidelity even if your equipment was once top of the line. More importantly, as you learn more about sound reproduction and music through the years, your ears will become more critical. You may actually out grow your system. The best way to decide when and what to update is to compare what you have to any thing and everything else that is currently available. A Herculean task, to be sure. But if you know what to listen for and how to properly focus the scope of your search, your quest will be not only manageable but worthwhile. If you’re not happy with what you hear through what you have, it’s time to find out what’s wrong and where improvement Is needed. The following is a brief guide to stereo system symptomology that, when properly applied with a liberal dosage of common sense, should lead to a complete cure of your listening problems. The best place to begin is with the inherently simplest piece of stereo gear, the turntable. All one has to do is spin records around — and be able to do it so smoothly and accurately its workings