put some caps on the buck convertor output.
preferably polymer or low-impedence electrolytics.
maybe 470uf polymer or 1000uf electrolytic...
stj
Great Sage 齊天大聖
Last Activity: Today, 05:28 PM
Joined: 12-23-2009
Location: Europe
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i have done that with high heat, low airflow and a small nozzle,
it may work fine...Leave a comment:
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post pictures of the pcb and control chip...Leave a comment:
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3.5" disks had a higher track density, when i used them i was throwing them away pretty often after less than a year.
also the drives wore out!
i learned real fast with the Amiga that CHINON drives are the good ones....Leave a comment:
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high frequency noise is messing with the ADSL/VDSL signals
and open your routers for a check, they often have rubish electrolytics in them that fail after a few years...Leave a comment:
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3.5" disks are shit,
always where....Leave a comment:
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it would probably be o.k. if it was properly assembled.
what's with the airgap between the final diode and the heatsink? !!!...Leave a comment:
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strange.
unless there is rust under the paint, but that usually only effects wirewound parts....Leave a comment:
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it shouldnt be an issue, clean the damaged area first and see if you can recover a connection-point...Leave a comment:
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whats that ttl chip about?
is it intended as a buffer for the esp output?...Leave a comment:
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about "tube sound"
i suspect it's mostly down to the other parts like shit caps and drifting resistors.
maybe some A'file could build a tube pre-amp using metal film resistors and polypropylene caps to compare to a mosfet design....Leave a comment:
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carbon type?
i'v seen carbon resistors go down in value when run at their voltage limit.
i only buy metal film because of that....Leave a comment:
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in the past you could run the file and while it's running you could find it's content in the TEMP folder.
not sure if thats still the case.
or you could try extracting the content with peazip or innoextract or other tools...Leave a comment:
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a fix is a fix.
in the old days we used to resolder all transformers and heatsink-mounted parts before even thinking about the fault.
cracked solder was that common...Leave a comment:
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you would be surprised about how well they blend in with the other real valves and work...Leave a comment:
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what the schematic doesnt show is the distribution of the caps,
they are connected between different i.c.'s to stop noise from one effecting others.Leave a comment:
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some vac tubes have been replaced with good results.
shango did some video's showing them - but they arent cheap...Leave a comment:
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replacing tantalum with ceramic was a downgrade...Leave a comment:
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what is the mcu part number under the sticker?...Leave a comment:
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maybe recap the analog section of the drive...Leave a comment:
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