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Re: kodak80 blog
Posted: 13 Jan 2023 17:26
by LarryL
Hi @kodak80
I let some of your ISA PCB v1.3 be made in China for my ATX Board.
I am struggling a bit with sourcing the SMD battery holder for the RTC
Do you evtl have a source or a vendor/ part number for a suitable component?
All I could find locally here in Germany are much wider than the 20mm on the board
I assume, that the battery is a CR2032, or do you use something else?
Another question: the two holes on both sides of the cartridge connector are for a bracket, right?
I could not find a suitable bracket with latches with distance of approx 76mm - at least not for keystone brackets
Any other special bracket, you used for the design?
Cheers
Michael
Re: kodak80 blog
Posted: 14 Jan 2023 03:00
by kodak80
LarryL wrote: 13 Jan 2023 17:26
Hi @kodak80
I let some of your ISA PCB v1.3 be made in China for my ATX Board.
I am struggling a bit with sourcing the SMD battery holder for the RTC
Do you evtl have a source or a vendor/ part number for a suitable component?
All I could find locally here in Germany are much wider than the 20mm on the board
I assume, that the battery is a CR2032, or do you use something else?
Another question: the two holes on both sides of the cartridge connector are for a bracket, right?
I could not find a suitable bracket with latches with distance of approx 76mm - at least not for keystone brackets
Any other special bracket, you used for the design?
Cheers
Michael
The battery holder is for a CR1220 coin battery. Similar to these ones:
https://www.ebay.de/itm/201945271987
The bracket holes were just a convenient location so there is no standard bracket to my knowledge. I could not find any information on standard ISA keystone brackets. Someone will need to 3D design and print a bracket to fit the adapter. If there are standard brackets then I can maybe update the design to move the mounting holes.
Re: kodak80 blog
Posted: 14 Jan 2023 05:23
by LarryL
kodak80 wrote: 14 Jan 2023 03:00
The battery holder is for a CR1220 coin battery. Similar to these ones:
https://www.ebay.de/itm/201945271987
The bracket holes were just a convenient location so there is no standard bracket to my knowledge. I could not find any information on standard ISA keystone brackets. Someone will need to 3D design and print a bracket to fit the adapter. If there are standard brackets then I can maybe update the design to move the mounting holes.
Thanks, found the battery holder
You are right with the bracket - there is no standard one with a suitable opening
Idea was to drill and file one in a existing „closed“ bracket like the Keystone 9203
https://www.mouser.de/ProductDetail/Ke ... azwQ%3D%3D
But maybe it is easier to 3D print something
Re: kodak80 blog
Posted: 22 May 2023 08:34
by kodak80
So, I was wondering about using Bluetooth for outputting audio from an ST. So, I created an adapter for the YM2149 chip which split the 3 analogue audio channels into stereo and then fed this into a Bluetooth emitter...
YM2149 Bluetooth adapter.jpg
An hey presto, I now have the audio outputting on various Bluetooth enabled audio devices.
Re: kodak80 blog
Posted: 22 May 2023 09:02
by exxos
:bravo:
Re: kodak80 blog
Posted: 22 May 2023 09:29
by HigashiJun
Cool !
Re: kodak80 blog
Posted: 22 May 2023 13:02
by ijor
Cool indeed! :)
Re: kodak80 blog
Posted: 22 May 2023 18:27
by DoG
Yay! Tower :D But very nice indeed.
Re: kodak80 blog
Posted: 08 May 2025 10:47
by kodak80
It works...
IMG_0948.jpg
IMG_0946.jpg
I have an original Mastersound II Cartridge and worked with an old schematic I found on gossuin.be
It is the same size as the original.
Re: kodak80 blog
Posted: 08 May 2025 10:52
by exxos
Oh wow. Beat me to it . :D
I thought it had more bits inside it.. but I've not opened it for like 30+ years..