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Connects to a sine-wave oscillator (like
HM8037), delivers
a burst of 2, 4, 8, 16, 32 or 64 periods with variable pause. The circuit diagram is a small modification of a design I made in 1973 which can be found HERE |
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Top trace: two periods on, four periods off. Bottom trace: Sync output Oscilloscope (Hameg HM1508-2) |
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With variable attenuation set at mid position. |
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Using external gate signal, TTL-levels from a function generator (like Hameg HM8030-6) enables constant burst and pause length regardless of input frequency. (Which should be at least ten times higher than the gate frequency). Burst start synchronized to input signal. |
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Top view. Since this is considered a prototype, no special care has been taken for the component placement. |
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Bottom view. |
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