SE361247BSE00619/72ASE61972ASE361247BSE 361247 BSE361247 BSE 361247BSE 00619/72 ASE00619/72 ASE 00619/72ASE 61972 ASE61972 ASE 61972ASE 361247 BSE361247 BSE 361247B
Authority
SE
Sweden
Application number
SE00619/72A
Inventor
W Broberg
T Noren
Original Assignee
W Broberg
T Noren
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by W Broberg, T NorenfiledCriticalW Broberg
Priority to SE00619/72ApriorityCriticalpatent/SE361247B/xx
Publication of SE361247BpublicationCriticalpatent/SE361247B/xx
H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04M—TELEPHONIC COMMUNICATION
H04M1/00—Substation equipment, e.g. for use by subscribers
H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets