November 2007
Intermediate to advanced
736 pages
46h 32m
English
Content preview from Consumer Electronics
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PICKUP AMPLIFIER USING IC-TAA320
By using TAA320 integrated circuit as preamplifier in combination with a BD-115 high voltage silicon power transistor, it is possible to design a simple 2 W mains fed class A amplifier which has an input impedance suitable for a crystal pickup and a very high signal-to-noise ratio. If, by accident, the pickup is dropped on the record, a high peak voltage is generated. However, the TAA320 has been designed to withstand upto 100 V peak input without damage. In record players the mains transformer can even be dispensed with if a tapping on the motor is used. The circuit diagram is shown in Fig. 20.7.
Fig. 20.7 ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.