JPS54161871A - Oscillation circuit - Google Patents
Oscillation circuitInfo
- Publication number
- JPS54161871A JPS54161871A JP7167778A JP7167778A JPS54161871A JP S54161871 A JPS54161871 A JP S54161871A JP 7167778 A JP7167778 A JP 7167778A JP 7167778 A JP7167778 A JP 7167778A JP S54161871 A JPS54161871 A JP S54161871A
- Authority
- JP
- Japan
- Prior art keywords
- diode
- trq7
- collector
- base
- vcc
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
- H03K3/0231—Astable circuits
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7167778A JPS54161871A (en) | 1978-06-13 | 1978-06-13 | Oscillation circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7167778A JPS54161871A (en) | 1978-06-13 | 1978-06-13 | Oscillation circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54161871A true JPS54161871A (en) | 1979-12-21 |
Family
ID=13467437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7167778A Pending JPS54161871A (en) | 1978-06-13 | 1978-06-13 | Oscillation circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54161871A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4506959A (en) * | 1981-12-29 | 1985-03-26 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens assembly with switching mechanism from or to zooming photographing to or from macro photographing |
US4523815A (en) * | 1982-07-27 | 1985-06-18 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens barrel for macrofocusing |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4917949A (ja) * | 1972-06-06 | 1974-02-16 | ||
JPS4948268A (ja) * | 1972-09-13 | 1974-05-10 |
-
1978
- 1978-06-13 JP JP7167778A patent/JPS54161871A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4917949A (ja) * | 1972-06-06 | 1974-02-16 | ||
JPS4948268A (ja) * | 1972-09-13 | 1974-05-10 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4506959A (en) * | 1981-12-29 | 1985-03-26 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens assembly with switching mechanism from or to zooming photographing to or from macro photographing |
US4523815A (en) * | 1982-07-27 | 1985-06-18 | Asahi Kogaku Kogyo Kabushiki Kaisha | Zoom lens barrel for macrofocusing |
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