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Originally posted by kt315
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Ok -
BTW, this madam in post office did longly seek your country in your PC screen. she said me - I do not know
such country, then corrected - I do not see how is the country name in lithuanian.
shame on them. i said her Send the parcel in Africa there will sort it out at the place.Comment
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For C30, 40, 41, 42, 43 Can i use 22uf 20v?Comment
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22uF 20V has big size vs used. you need 6032 size type - 6.0x3.2mm
https://www.topline.tv/ChipTantalum.html
you can use 2.2....4.7....6.8....10... uf 16V. also type size lower - 3528.
C42 on 6.3V.
certainly how everywhere in electronics you can take caps on more voltage - 20...25... etc. if sizes allow.
those caps are redundant and you can not set them. exclude if a work of your board is stabile.
Do not set/use vertical type tants (on pic).
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learn also especcialy made by me thread https://www.geotech1.com/forums/show...-on-boards-LOL!Originally posted by chuubaba View PostComment
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Which aliexpress.com seller has all IC and transistors for Delta Pulse Rev5 at a reasonable price?
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4538s arrived. checked in DP and they are good.
https://ru.aliexpress.com/item/33046...3da233ed7gUFnqComment
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Will these 10A10 diodes work as substitute for STTH1210D?
https://www.aliexpress.com/item/3290...chweb201603_52Comment
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sorry, not. you looking for Type: Rectifier Diode
while we need Ultrafast, FAST RECOVERY:
Features and benefits
■ Ultrafast, soft recovery
■ Very low conduction and switching losses
■ High frequency and/or high pulsed current
operation
■ High reverse voltage capability
■ High junction temperature
■ Insulated packages:
? TO-220Ins
Electrical insulation = 2500 VRMS
Capacitance = 7 pF
? TO-220FPAC
Electrical insulation = 2500 VRMS
Capacitance = 12 pF
https://www.st.com/resource/en/datasheet/stth1210.pdfComment
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hiHi,
I've registered on GEOTECH forum (my nick: w.) and have found your user nick, but I do not have privilleges to send messages.
So I would like to ask you for some further instructions about this detector. I can start completing elements waiting for board.
I have made 3 metal detectors (2 PI and 1 VLF), but there are problems working with frame coils. I believe Delta Pulse (Sniffer XR-71) can work much better.
Best Regards,
T.
in geotech1 you have to do first comment then you can write PM.
a thread related to DP https://www.geotech1.com/forums/show...-Pulse/page144
all files https://dfiles.ru/files/k0yx5lhgp
a parcel will send on monday because unworking days.
thank you
AnatloyComment
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Is it o.k to use some 0.1% 1/8w resistors with 1% 1/4w resistors?
Can i use C3 15nf 250V?Comment
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yes but you must choice the pairs near to value -- look sch and part list.
board feets 1/8 and 1/4W resistors everywhere.
C3 250V 15nF put pics what it is, what type. put a ruler near i could see a size.
R23 4k70 0.125 or 0.25 0.1% and better
R24 R23 and R24 tuned in pair 0.1% and better
R25 0.1% and better
R26 R25 and R26 tuned in pair 0.1% and better
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rego in esspecially made thread by me
to learn what are resistors and their power etc.
https://www.geotech1.com/forums/show...sian-traditionComment
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Here is C1 22nf 250v. C3 is same voltage and colour and shape. Can i use it?Comment
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size is big, they does not fit the pcb. pins step has to be 5mm-5.08mm.
use green type. ЗЕЛЕНЫЕ СЛАДКИЕ ПОДУШЕЧКИ.
sorry i do not know how it in english.
or ceramic type.
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