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Old 15th June 2012, 10:28 PM   #1381
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Without capacitor, rest the same
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Old 15th June 2012, 10:53 PM   #1382
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BC550C
SK117GR mid Idss
SK117GR strong Idss
SK117GR lower Idss measures 1,18mA
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Old 15th June 2012, 10:55 PM   #1383
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Can I connect BIII?
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Old 15th June 2012, 11:50 PM   #1384
Salas is offline Salas  Greece
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Had a dead BC550C that means?
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Old 16th June 2012, 10:02 AM   #1385
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Yes & Q102 changed the value because I used between 3 & 3.5mA
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Old 16th June 2012, 11:53 AM   #1386
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Connected the reg to B3 red LED fused, changed for a new red LED, 0.1V/cm 0.1ms, seems stable without oscillation.
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Old 16th June 2012, 01:37 PM   #1387
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So it is time to go down to 5mV/div to see the result.
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Old 16th June 2012, 02:02 PM   #1388
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5mV/div scope line blinks when Trig. LED lits
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Old 16th June 2012, 04:55 PM   #1389
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No need to use the trigger if random/non oscillating signal.
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Old 16th June 2012, 04:57 PM   #1390
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Thank you
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