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preamplifier.php 5330 Bytes 11-12-2014 09:37:05
ELECTRONIC PROJECTS : CETH-60
The Preamplifier has been built on a own PCB, because it may have to be replaced
(if students try to measure Line Frequency) or it may be useful for other projects.
The Device consumes about 40 mA at 15 V Supply. It consists of two amplifiers and
two limiter stages. The gain is about 100 ( 40dB ). Higher gain may result in
Fig. 1 .:. The 3D View from Target
Fig. 2 .:. Placement of the parts
Fig. 3 .:. Input level needed to produce a 2Vpp output. Horizontal unit : MHz
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