JPH0422588Y2 - - Google Patents

Info

Publication number
JPH0422588Y2
JPH0422588Y2 JP1987111457U JP11145787U JPH0422588Y2 JP H0422588 Y2 JPH0422588 Y2 JP H0422588Y2 JP 1987111457 U JP1987111457 U JP 1987111457U JP 11145787 U JP11145787 U JP 11145787U JP H0422588 Y2 JPH0422588 Y2 JP H0422588Y2
Authority
JP
Japan
Prior art keywords
transistor
telephone
scr
thyristor scr
thyristor
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.)
Expired
Application number
JP1987111457U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6416753U (US06653308-20031125-C00197.png
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 filed Critical
Priority to JP1987111457U priority Critical patent/JPH0422588Y2/ja
Publication of JPS6416753U publication Critical patent/JPS6416753U/ja
Application granted granted Critical
Publication of JPH0422588Y2 publication Critical patent/JPH0422588Y2/ja
Expired legal-status Critical Current

Links

JP1987111457U 1987-07-21 1987-07-21 Expired JPH0422588Y2 (US06653308-20031125-C00197.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987111457U JPH0422588Y2 (US06653308-20031125-C00197.png) 1987-07-21 1987-07-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987111457U JPH0422588Y2 (US06653308-20031125-C00197.png) 1987-07-21 1987-07-21

Publications (2)

Publication Number Publication Date
JPS6416753U JPS6416753U (US06653308-20031125-C00197.png) 1989-01-27
JPH0422588Y2 true JPH0422588Y2 (US06653308-20031125-C00197.png) 1992-05-25

Family

ID=31349518

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987111457U Expired JPH0422588Y2 (US06653308-20031125-C00197.png) 1987-07-21 1987-07-21

Country Status (1)

Country Link
JP (1) JPH0422588Y2 (US06653308-20031125-C00197.png)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60250762A (ja) * 1984-05-25 1985-12-11 Matsushita Electric Works Ltd 電話機の保留アダプタ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60250762A (ja) * 1984-05-25 1985-12-11 Matsushita Electric Works Ltd 電話機の保留アダプタ

Also Published As

Publication number Publication date
JPS6416753U (US06653308-20031125-C00197.png) 1989-01-27

Similar Documents

Publication Publication Date Title
US4645882A (en) Latching relay drive circuit for use in telephone sets
CA1175488A (en) Power supply control circuit for subscriber carrier telephone system
JPH0422588Y2 (US06653308-20031125-C00197.png)
US5105461A (en) Telephone line interface circuit
US4440981A (en) Electronic hold circuit
US4435622A (en) Latching relay hold circuit for a telephone instrument
US4221936A (en) Loop to ground start circuit
JPS60117855A (ja) 加入者ループ開放装置
US4313037A (en) Telephone station set with improved flash signalling
US4454385A (en) Latching relay hold release circuit for a telephone instrument
JPH0233423Y2 (US06653308-20031125-C00197.png)
US4447674A (en) Electronic hold release circuit
JPH054362Y2 (US06653308-20031125-C00197.png)
US4656660A (en) Office line holding circuit with an automatic release function for direct connection telephone system
JPH0355955A (ja) 電話機の電源制御回路
JPS6314523Y2 (US06653308-20031125-C00197.png)
JPH0375105B2 (US06653308-20031125-C00197.png)
JPS6316196Y2 (US06653308-20031125-C00197.png)
JPS5923665A (ja) 電子的共通スイツチ
JP2610986B2 (ja) 給電制御機能を備えた過電流保護回路
JPH0332130Y2 (US06653308-20031125-C00197.png)
JPH0221812Y2 (US06653308-20031125-C00197.png)
JPS6328386B2 (US06653308-20031125-C00197.png)
JPS62241493A (ja) ル−プ検出回路
JPH0413864Y2 (US06653308-20031125-C00197.png)