JPS5885660A - 受話器用増幅器 - Google Patents

受話器用増幅器

Info

Publication number
JPS5885660A
JPS5885660A JP18476181A JP18476181A JPS5885660A JP S5885660 A JPS5885660 A JP S5885660A JP 18476181 A JP18476181 A JP 18476181A JP 18476181 A JP18476181 A JP 18476181A JP S5885660 A JPS5885660 A JP S5885660A
Authority
JP
Japan
Prior art keywords
amplifier
circuit
diode
constant current
line
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP18476181A
Other languages
English (en)
Japanese (ja)
Other versions
JPH025349B2 (forum.php
Inventor
Kenji Munakata
宗像　健二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP18476181A priority Critical patent/JPS5885660A/ja
Publication of JPS5885660A publication Critical patent/JPS5885660A/ja
Publication of JPH025349B2 publication Critical patent/JPH025349B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H04M1/6016—Substation equipment, e.g. for use by subscribers including speech amplifiers in the receiver circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
JP18476181A 1981-11-18 1981-11-18 受話器用増幅器 Granted JPS5885660A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18476181A JPS5885660A (ja) 1981-11-18 1981-11-18 受話器用増幅器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18476181A JPS5885660A (ja) 1981-11-18 1981-11-18 受話器用増幅器

Publications (2)

Publication Number Publication Date
JPS5885660A true JPS5885660A (ja) 1983-05-23
JPH025349B2 JPH025349B2 (forum.php) 1990-02-01

Family

ID=16158863

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18476181A Granted JPS5885660A (ja) 1981-11-18 1981-11-18 受話器用増幅器

Country Status (1)

Country Link
JP (1) JPS5885660A (forum.php)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61163448U (forum.php) * 1985-03-18 1986-10-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61163448U (forum.php) * 1985-03-18 1986-10-09

Also Published As

Publication number Publication date
JPH025349B2 (forum.php) 1990-02-01

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