JPS5814216U - Oscillation frequency control circuit - Google Patents
Oscillation frequency control circuitInfo
- Publication number
- JPS5814216U JPS5814216U JP10645981U JP10645981U JPS5814216U JP S5814216 U JPS5814216 U JP S5814216U JP 10645981 U JP10645981 U JP 10645981U JP 10645981 U JP10645981 U JP 10645981U JP S5814216 U JPS5814216 U JP S5814216U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- oscillation
- circuit
- signal strength
- oscillation frequency
- 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
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例を部分的に２０ツク図で示し
た回路図、第２図は第１図における周波数対電圧変換−
の坤の実施例を示すブロック回路 −′ 図であ
る。
発振回路・・・１、周波数対電圧変−器・・・１１、信
−号強度可変回路−１３゜Fig. 1 is a circuit diagram partially showing an embodiment of the present invention in a 20-block diagram, and Fig. 2 shows the frequency-to-voltage conversion in Fig. 1.
FIG. 2 is a block circuit diagram showing an embodiment of the present invention. Oscillation circuit...1, Frequency-to-voltage transformer...11, Signal strength variable circuit-13°
Claims (1)
振回路の発振周波数の高調波とのビート成分が前記受信
機のビート妨害となるのを除去する為に前記発振周波数
を所定の周波数に変位させる機能を有するテープレコー
ダに於いて、前記発振回路の発振周波数の変位に応じて
変化する出力直流電圧を取り出警周波数対電圧変換器と
、 この直流電圧に応答し録音および消去ヘッドのインピー
ダンスによる信号強度変位を補償するよ第１図 第２図 ７どン′ うに前記発振回路の信号強度を制御する信号強度可変回
路とからなることを特徴とする発振周波数′制御回路。[Claims for Utility Model Registration] The oscillation is performed in order to eliminate the beat interference of the receiver due to the beat component between the receiving frequency of the receiver and the harmonic of the oscillation frequency of the oscillation circuit included in the recording and erasing circuit. A tape recorder having a function of shifting the frequency to a predetermined frequency includes a frequency-to-voltage converter that extracts an output DC voltage that changes according to the displacement of the oscillation frequency of the oscillation circuit, and a frequency-to-voltage converter that responds to this DC voltage and records it. and a signal strength variable circuit for controlling the signal strength of the oscillation circuit to compensate for the signal strength variation due to the impedance of the erasing head. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10645981U JPS5814216U (en) | 1981-07-17 | 1981-07-17 | Oscillation frequency control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10645981U JPS5814216U (en) | 1981-07-17 | 1981-07-17 | Oscillation frequency control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5814216U true JPS5814216U (en) | 1983-01-28 |
Family
ID=29900937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10645981U Pending JPS5814216U (en) | 1981-07-17 | 1981-07-17 | Oscillation frequency control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5814216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6044967U (en) * | 1983-09-05 | 1985-03-29 | 株式会社 野口栄太郎商店 | handle device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS553406B2 (en) * | 1972-01-03 | 1980-01-25 |
-
1981
- 1981-07-17 JP JP10645981U patent/JPS5814216U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS553406B2 (en) * | 1972-01-03 | 1980-01-25 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6044967U (en) * | 1983-09-05 | 1985-03-29 | 株式会社 野口栄太郎商店 | handle device |
| JPH031963Y2 (en) * | 1983-09-05 | 1991-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5814216U (en) | Oscillation frequency control circuit | |
| JPS5856317U (en) | Tape recorder bias current supply circuit | |
| JPS5923298U (en) | Chiyotsupa power control circuit | |
| JPS5894120U (en) | Tape recorder recording circuit | |
| JPS6051604U (en) | Automatic frequency characteristic adjustment device for magnetic recording and playback equipment | |
| JPS5883992U (en) | Phase synchronization control circuit | |
| JPS59134801U (en) | Controller output circuit | |
| JPS59194111U (en) | Video erasing circuit of video tape recorder | |
| JPS6035304U (en) | Tape recorder bias oscillation leakage reduction device | |
| JPS60183991U (en) | Double tape recorder for tape editing | |
| JPS59127371U (en) | RF converter | |
| JPS5933112U (en) | magnetic recording and reproducing device | |
| JPS5978537U (en) | tape recorder | |
| JPS5868711U (en) | Control circuit for variable frequency oscillator | |
| JPS58155624U (en) | AC bias device for magnetic recording | |
| JPS6040011U (en) | tape recorder | |
| JPS5942518U (en) | Tape recorder bias oscillation circuit | |
| JPS5875396U (en) | Tape recorder level display circuit | |
| JPS5999209U (en) | recording bias circuit | |
| JPS60169707U (en) | Tape recorder recording circuit | |
| JPS6070903U (en) | recorder | |
| JPS6137666U (en) | magnetic recording and reproducing device | |
| JPS6027539U (en) | CVCF commercial synchronous circuit by UJT | |
| JPS58173019U (en) | Recording/playback switching circuit | |
| JPS59130228U (en) | Tape recorder recording and playback circuit |