Search found 56 matches

by flyboy71
Fri Dec 31, 2021 10:30 am
Forum: Pro Audio Design
Topic: Texar Prism clone prototype Finished Version
Replies: 62
Views: 41253

Re: Texar Prism clone prototype Finished Version

Whew! Im glad I ordered when I did. On Monday there were 1400 in stock. I ordered 20 to have plenty and now look at it. I have watched this go from 9000 to 7000 to 3000 from the first time I offered my project. I think since the SMD version has been unobtainable since beginning of the year this has ...
by flyboy71
Thu Dec 30, 2021 6:13 pm
Forum: Pro Audio Design
Topic: Texar Prism clone prototype Finished Version
Replies: 62
Views: 41253

Re: Texar Prism clone prototype Finished Version

I had trouble sourcing the SMD caps I use on the display boards. There was only one recommended replacement to choose from. I'm not sure about any thru hole parts. That's another reason I stopped short of supplying assembled boards until this clears up a bit. The other part I see dwindling fast are ...
by flyboy71
Thu Dec 30, 2021 11:30 am
Forum: Pro Audio Design
Topic: Texar Prism clone prototype Finished Version
Replies: 62
Views: 41253

Re: Texar Prism clone prototype Finished Version

So I have made a one time buy on the parts needed for the remaining board sets. I have 4 sets left with 2 in reserve for potential buyers. I was surprised at the hoops needed to jump through get the parts but I want to be able to deliver what I have left. I will order more bare boards when the parts...
by flyboy71
Mon Nov 01, 2021 6:08 pm
Forum: Test, Measurement and Repair
Topic: Fluke 8050A Display Upgrade
Replies: 17
Views: 1583

Re: Fluke 8050A Display Upgrade

Close enough for government work! Speaking of...... way back in the early 90s a company I worked for used those meters for testing on a government project. Whatever we were measuring had to be within a gnats behind tight spec so they literally stacked and paralleled those until one of them read the ...
by flyboy71
Sun Oct 24, 2021 1:38 pm
Forum: Test, Measurement and Repair
Topic: Fluke 8050A Display Upgrade
Replies: 17
Views: 1583

Re: Fluke 8050A Display Upgrade

I forgot about the -5V supply. That complicates it a bit. I have used level translators before to handle comms to a device in some weird test system I had to design. I'm thinking it was just a transistor. Cant remember which circuit but here are some ideas. https://www.maximintegrated.com/en/design/...
by flyboy71
Sun Oct 24, 2021 10:20 am
Forum: Test, Measurement and Repair
Topic: Fluke 8050A Display Upgrade
Replies: 17
Views: 1583

Re: Fluke 8050A Display Upgrade

The OLEDs are nice, its more a matter of finding a reliable source unless its a one-off project. This looks like a handy I2C LED display. According to the MAX7219 datasheet it can display "L" but I assume this board is wired to do so. Plus they have it in other colors. https://www.adafruit.com/produ...
by flyboy71
Wed Oct 20, 2021 1:46 pm
Forum: Test, Measurement and Repair
Topic: Fluke 8050A Display Upgrade
Replies: 17
Views: 1583

Re: Fluke 8050A Display Upgrade

How about one of the many OLED displays out there? This ones discontinued but there are others: https://www.adafruit.com/product/931

This site has been useful, especially where he describes charlieplexing to save pin count. Other items might be useful too: http://www.technoblogy.com/show?Y8Y
by flyboy71
Sun Oct 10, 2021 1:48 pm
Forum: Pro Audio Design
Topic: Texar Prism clone prototype Finished Version
Replies: 62
Views: 41253

Re: Texar Prism clone prototype Finished Version

Combined all build guides into one user and construction manual.
by flyboy71
Fri Oct 08, 2021 2:31 pm
Forum: Test, Measurement and Repair
Topic: Fluke 8060A Recap
Replies: 1
Views: 330

Re: Fluke 8060A Recap

At least it wasn't just a fluke that someone replaced that cap.

.........I'll be here all week folks
by flyboy71
Mon Oct 04, 2021 9:09 pm
Forum: Pro Audio Design
Topic: Texar Prism clone prototype Finished Version
Replies: 62
Views: 41253

Re: Texar Prism clone prototype Finished Version

Now its getting real. Board sets have arrived, I ordered enough for 5 units but have an order for 2 so I now have enough for 3 clones. No shopping site yet so this first batch will be sold direct until I do. Attached is the build guide preview. I'm finishing documentation on wiring and testing. If y...