fuse protector

NOW 10 fuse protector tor we In an earlier Summer Circuits issue of Elekoyer" published an article entitled "fuse destr, a circuit which was totally effective and worked every- time. However, it was rather demanding on replace ment parts. The fuse protector described here does not suffer from the same disadvantage and is a practical circuit with a great many applications. In recent times, the requirement for higher power Hi-fi equipment has grown to such an extent that it has now become necessary to protect even the domestic house fuses from being blown too often. The solution is a "soft start" circuit — a circuit which maintains the initial surge current to within acceptable limits. Normal domestic fuses are rated at 13 A and many readers may express some surprise if we venture to suggest that the transformer in their equipment could conceivably draw this seemingly excessive amount of current. The short answer is yes, it can and it does! It should be realised that these large t...