
Model 755R
Instruction Manual
| T1 |
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| +15V |
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| R78 |
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| 19 VAC |
| R69 | - |
| R74 | - | 249K |
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120 V |
| 2 M |
| 1 | 590K |
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| R77 |
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| TO POWER | + |
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| 3 |
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RMS |
| SUPPLY |
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| 10K |
| CR11 | ||
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| 19 VAC |
| R71 |
| R70 |
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| C37 |
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| 21.5K |
| 20M |
| R75 | R79 |
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| 12 |
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| - | 1.0uF |
| 10K | Q6 | T2 | |||
| R67 | CR9 |
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| 210K | |||||||
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| 2 |
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| 10K |
| R68 | + |
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| R76 |
| C40 | R80 |
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| 3.3K |
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| R72 | C36 |
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| 37.4K | 2200uF | 10K |
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| CR10 |
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| R73 |
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| 4.75K | .18uF |
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| 20M |
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| R81 |
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| R85 |
| R86 |
| 56.2 | C38 |
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| R82 | R83 |
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| 11.0K |
| 20M |
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| .18uF | ||
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| 9.07K |
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| 63.4K |
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| C39 | RT1 | R84 | - |
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| R87 |
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| .01uF |
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| 4 |
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| 10K | ||
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| 169K | + |
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Figure
OFF | OFF | OFF |
| +2.3V |
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| R78 | 6 Hz |
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| 249K | +15V |
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| +15V |
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| R77 |
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| R74 | - |
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INPUT FROM |
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| 10K |
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| 590K | +3 |
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MULTIVIBRATOR |
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| C37 | R79 | Q6 |
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| R75 | 10K |
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| 1.0uF |
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| T2 | |
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| 210K |
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| R80 |
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R82 | R83 |
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| R76 | C40 |
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| 10K |
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9.09K | 63.4K |
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| TO | 37.4K | 2200uF |
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| COMPARATOR |
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| R81 |
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RT1 | R84 |
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| 56.2 | C38 | |
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169K |
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| .18uF | |
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| R87 |
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| 10K |
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Figure
Rosemount Analytical Inc. A Division of Emerson Process Management | Circuit Analysis |