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help to set dc offset to threshold s450
help to set dc offset to threshold s450
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Old 27th January 2016, 07:10 PM   #21
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help to set dc offset to threshold s450
dunno , maybe Papa will chime in

however , I believe 10uF/16V is adequate

can you pull one out and measure capacitance , if you have any sort of C meter?
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Old 27th January 2016, 08:47 PM   #22
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i pull up one and it is 4,5 uF measurate with my c meter.

i purchase always 10uF /16 volt ?
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Old 27th January 2016, 08:56 PM   #23
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help to set dc offset to threshold s450
yup

again - check all solder joints
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Old 28th January 2016, 08:24 AM   #24
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hi Zen 30 minutes ago i went to the eletronic shop to purchase the tantallio cup, but the shop tell me no more available.

so at home i have some oscon low esr 33uf 5v

can i connect two of these in serial so i have 15 uf 10v ?

i wait your answer
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Old 28th January 2016, 08:47 AM   #25
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help to set dc offset to threshold s450
yes , you can

what I wrote clearly - do not use Tantalum - use regular electrolytics
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Old 28th January 2016, 11:22 AM   #26
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hi zen , i test it but the sistuations is almost the same -1,15 lef ch and 1,1 right ch

is lower of 0,1 volts for channel

what is the next step ?

the test is like before with no shorted input
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Old 28th January 2016, 12:15 PM   #27
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help to set dc offset to threshold s450
you must short inputs
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Old 28th January 2016, 12:17 PM   #28
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Default other news

another people in internet send me the power supplat schema od s450 where is indicated that the nomial rail voltage shold be 74v dc

and i see that my s450 the vdc is 80 volts dc when i set to work to 220v ac

then i tried to set the s450 to work at 240v ac and vre s 73vdc

about the dc in otput with this operation ( set 240ac volts) is low anoher 0,1v dc

so i have 1.0 v dc on the right and -1.1v dc in the left

i wait yours comment
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Old 28th January 2016, 12:28 PM   #29
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ok i now short the input and put the results
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Old 28th January 2016, 12:43 PM   #30
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whit the input shor the situation is the following:

rihgt ch 1.13v
left ch -1.23v

respect the last measure is more higt of 0.1 v for channel
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