555 timer A600

04 May 2015, 14:32

Hi,
I'm going to recap my Amiga600 rev.1.3
I want to replace my NE555 timer (U14) also (good chance it's broken)

With the capacitors it was quite doable finding out which to use, The timer though is a little harder.

Does it have to be a CMOS IC?
Are there really that much types, or is it just different brands?
Which brands are good quality?

Michel

demolition · 04 May 2015, 15:37

I think you can use any 555. LM555 is compatible and easy to get.

cpiac64 · 04 May 2015, 21:41

the 555 need a good 10microF (C612) and a good 100nF (C611) for work

22 July 2016, 22:53

The c611 (100nF)... What should be the voltage of the capacitor?

cpiac64 · 23 July 2016, 23:35

16 or more

xArtx · 24 July 2016, 14:40

100nF is probably a ceramic disc that shouldn't need replacing.
You’d be hard pressed to find one rated under 50V.

24 July 2016, 21:23

So, 50V is suitable also?

idrougge · 25 July 2016, 03:00

Yes.

cpiac64 · 25 July 2016, 08:33

yesterday i recapped another a600, removed all electrolytics caps and soldered new tantalium caps but the reset go on in 30 seconds, changed the 100nF ceramic with a new and now the reset is on 3 seconds

04 May 2015, 14:32	#1
Michel Posts: n/a	555 timer A600 Hi, I'm going to recap my Amiga600 rev.1.3 I want to replace my NE555 timer (U14) also (good chance it's broken) With the capacitors it was quite doable finding out which to use, The timer though is a little harder. Does it have to be a CMOS IC? Are there really that much types, or is it just different brands? Which brands are good quality? Michel

22 July 2016, 22:53	#4
Michel Posts: n/a	The c611 (100nF)... What should be the voltage of the capacitor? Last edited by Michel; 23 July 2016 at 09:15.

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04 May 2015, 15:37	#2
demolition Unregistered User Join Date: Sep 2012 Location: Copenhagen / DK Age: 43 Posts: 4,190	I think you can use any 555. LM555 is compatible and easy to get.

04 May 2015, 21:41	#3
cpiac64 Registered User Join Date: Apr 2010 Location: Italy Posts: 1,136	the 555 need a good 10microF (C612) and a good 100nF (C611) for work

23 July 2016, 23:35	#5
cpiac64 Registered User Join Date: Apr 2010 Location: Italy Posts: 1,136	16 or more

24 July 2016, 14:40	#6
xArtx Registered User Join Date: Jun 2013 Location: Australia Posts: 685	100nF is probably a ceramic disc that shouldn't need replacing. You’d be hard pressed to find one rated under 50V.

24 July 2016, 21:23	#7
Michel Posts: n/a	So, 50V is suitable also?

25 July 2016, 03:00	#8
idrougge Registered User Join Date: Sep 2007 Location: Stockholm Posts: 4,332	Yes.

25 July 2016, 08:33	#9
cpiac64 Registered User Join Date: Apr 2010 Location: Italy Posts: 1,136	yesterday i recapped another a600, removed all electrolytics caps and soldered new tantalium caps but the reset go on in 30 seconds, changed the 100nF ceramic with a new and now the reset is on 3 seconds

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