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DE19647875A1 Electronic circuit for acoustic signals converted into electric signal  
The circuit has a two-stage, R-C coupled triode valve amplifier with a cathode base circuit, in which a variable network (23) is incorporated between the second triode cathode (19) and the first...
DE19709930A1 Musical characteristics information detector  
The detector has a pair of filters (2) with predetermined cut off frequency for detecting the pitch of an input electric oscillating signal. The amplitude level of the input electric oscillating...
DE4228362A1 Integrated tone generator circuit - combines binary tone elements with respective current source outputs supplied to loudspeaker via current amplifier  
The circuit uses a tone generator (TG) providing a clock signal (F) and a binary coded tone sequence. At least one current source device (SS) has a number of different outputs. A current amplifier...
DE3810321A1 Device for generating musical tones  
The invention relates to a device for generating musical tones from the tonal range of musical instruments having 12 tonal degrees per octave. So that the musical scale of the audio frequencies is...
Matches 1 - 4 out of 4