hullo, i need a bit of advice. i am unsure about what size c15 should be. i am making a zx80 and i am using the BOM from https://myretrostore.co.uk/wp-content/u ... 80-BOM.pdf. for c15 it says 0-330pf. which sounds like a tuning cap, but i have looked at photos of original zx80 PCBs and it is clearly a normal cap. if anyone could please tell me the size i need, id be jolly grateful.
doris
zx80 capacitor c15 size
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DoktorDoris
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zx80 capacitor c15 size
"Mittler zwischen Hirn und Händen muss das Herz sein."
("The mediator between the head and hands must be the heart.")
Metropolis 1927
("The mediator between the head and hands must be the heart.")
Metropolis 1927
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Lardo Boffin
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Re: zx80 capacitor c15 size
I uploaded original build instructions a whileback:
https://www.sinclairzxworld.com/viewtop ... 506#p35506
It may help.
Looks like C15 is referenced in section 7 - faults.
https://www.sinclairzxworld.com/viewtop ... 506#p35506
It may help.
Looks like C15 is referenced in section 7 - faults.
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ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
TS 1000 iss 3, ZXPand AY and +, ZX8-CCB, ZX-KDLX & ChromaSCART
Tatung 81 + Wespi
TS 1500 & 2000
Spectrum 16k (iss 1 s/n 862)
Spectrum 48ks plus a DIVMMC future and SPECTRA
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1024MAK
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Re: zx80 capacitor c15 size
C15 on my ZX80 is a ceramic marked 221, that’s a 220pF.
Mark
- C15, 220pF
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ZX81 Chip Pin-outs
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Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Spring approaching...
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DoktorDoris
- Posts: 16
- Joined: Mon Dec 30, 2024 6:53 pm
Re: zx80 capacitor c15 size
thanks very much to the pair of you, that is exactly what i needed to know.
"Mittler zwischen Hirn und Händen muss das Herz sein."
("The mediator between the head and hands must be the heart.")
Metropolis 1927
("The mediator between the head and hands must be the heart.")
Metropolis 1927