Search found 49 matches
- Fri Nov 04, 2022 4:25 pm
- Forum: Hardware
- Topic: MaxDuino settings?
- Replies: 38
- Views: 36793
Re: MaxDuino settings?
Hi Jesper. I've been thinking about making a video for you, for quite some time, to show how it looks to me, when I load a game on the Lambda 8300. I hope you can compare the picture and voltages with what you have. https://youtu.be/riutTeCjOLM Back again I have just re-viewed the video Martin did ...
- Fri Oct 28, 2022 1:15 pm
- Forum: Hardware
- Topic: MaxDuino settings?
- Replies: 38
- Views: 36793
Re: MaxDuino settings?
1024mak Thanks for your input - when getting som gates, i will return the result. So, the 74LS32 fitted on a breadboard - a little breakout board in the back of the Lambda. Pictures and scope pictures will tell the story. I am sure 1024mak is able to decode the results. The output from the gates, c...
- Fri Oct 28, 2022 11:14 am
- Forum: Hardware
- Topic: MaxDuino settings?
- Replies: 38
- Views: 36793
Re: MaxDuino settings?
That looks most excellent! :D One thing for sure is that if this does not cure the problem then it can be eliminated and the fault lies elsewhere. So, some weeks ago i received the LM386 amplifier. Turned the signal level from the MaxDuino up from 4,2V to 5,0V, unfortunately without any succes load...
- Sun Oct 02, 2022 8:10 pm
- Forum: Hardware
- Topic: Computers in museum on Bornholm
- Replies: 1
- Views: 6382
Computers in museum on Bornholm
Saw these 3 wonders on display at the museum (Teknisk Samling) on the insle Bornholm in Denmark today.
- Sun Sep 18, 2022 4:34 pm
- Forum: Hardware
- Topic: MaxDuino settings?
- Replies: 38
- Views: 36793
Re: MaxDuino settings?
1024mak
Thanks for your input - when getting som gates, i will return the result.
Thanks for your input - when getting som gates, i will return the result.
- Fri Sep 16, 2022 2:21 pm
- Forum: Hardware
- Topic: MaxDuino settings?
- Replies: 38
- Views: 36793
Re: MaxDuino settings?
PS Driving to the southern part of Jutland from Sealand would be economical suicide with present fuel prices.....;o) PPS A fine little LM358 OpAmp mono music amplifier is ordered. (ref to: MOGGYS post in this tread from: Fri Sep 09, 2022 11:34 am ) Have a nice weekend! If I read your post correctly...
- Fri Sep 16, 2022 12:31 pm
- Forum: Hardware
- Topic: MaxDuino settings?
- Replies: 38
- Views: 36793
Re: MaxDuino settings?
Maybe we should find out if the signal reaches the CPU. How about 2 oscilloscope pins connected to D7 (tape in data) and /IORQ (I/O access). Then we can see tape data when /IORQ is low. I don't know how many port reads/writes happens during tape read, but tape data read would be the most frequent. ...
- Fri Sep 09, 2022 3:05 pm
- Forum: Hardware
- Topic: MaxDuino settings?
- Replies: 38
- Views: 36793
Re: MaxDuino settings?
Maybe we should find out if the signal reaches the CPU. How about 2 oscilloscope pins connected to D7 (tape in data) and /IORQ (I/O access). Then we can see tape data when /IORQ is low. I don't know how many port reads/writes happens during tape read, but tape data read would be the most frequent. ...
- Fri Sep 09, 2022 3:02 pm
- Forum: Hardware
- Topic: MaxDuino settings?
- Replies: 38
- Views: 36793
- Fri Sep 09, 2022 10:32 am
- Forum: Hardware
- Topic: MaxDuino settings?
- Replies: 38
- Views: 36793
Re: MaxDuino settings?
Hi Moggy Thx for replying. I am using a LM358 OpAmp, and the breadboard circuit is not identical with the drawn schematic. I will post the build circuit schematic later. I could try building a better amplifier, but when looking at the result (output) from the present amplifier - i gain the result i ...