Search found 5 matches
- Feb 23rd, '20, 14:19
- Forum: Nava Hardware
- Topic: No noise
- Replies: 9
- Views: 22774
Re: No noise
Allthough the forum seems to be quite abandoned I want to share, that a faulty 14006 IC caused the problems mentioned above. Noise is now working properly :D Unfortunately most of those supplied with the kit are bad. I had 2 out of 10 working. A bit late finishing my build (been sitting i the shelf...
- Mar 30th, '19, 15:58
- Forum: Yocto² Hardware
- Topic: Noise problem
- Replies: 14
- Views: 17588
Re: Noise problem
You need to put a 2SC828 with a hFE of at least 300. Anyone who can tell me how to know that (hFE=300) when you're buying? I tried a bag of 20 2SC828 from ebay, but the highest score I got was 281... :? In case someone's interested: I got me 50 2SC828 from eBay and the second one I measured had hFE...
- Feb 22nd, '19, 07:34
- Forum: Yocto² Hardware
- Topic: Noise problem
- Replies: 14
- Views: 17588
Re: Noise problem
Anyone who can tell me how to know that (hFE=300) when you're buying?gihaume wrote:You need to put a 2SC828 with a hFE of at least 300.
I tried a bag of 20 2SC828 from ebay, but the highest score I got was 281...
- Aug 8th, '18, 16:57
- Forum: Yocto² Hardware
- Topic: PSU: No -15V [SOLVED]
- Replies: 1
- Views: 2646
Re: PSU: No -15V
Sorry folks! My electronics skills aren’t obviously very good. I started thinking about how the PSU works and realized it needs AC not DC 
I had by old habit just connected a standard dc adapter....
Very stupid, but perhaps I learned something out of it.
I had by old habit just connected a standard dc adapter....Very stupid, but perhaps I learned something out of it.
- Aug 4th, '18, 11:43
- Forum: Yocto² Hardware
- Topic: PSU: No -15V [SOLVED]
- Replies: 1
- Views: 2646
PSU: No -15V [SOLVED]
Hi all, I’ve started the build of the Yocto2 and followed the build guide. My problem is I don’t get the -15V from the output of the PSU as described (and not from the output pin of the 7915 either). Does anyone have any suggestion what could be wrong? BTW the input voltage has to be higher than 15V...