Texar Prism clone prototype Finished Version

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flyboy71
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Re: Texar Prism clone prototype

Post by flyboy71 »

By golly you're right! That's the over the cliff setting I need
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flyboy71
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Re: Texar Prism clone prototype

Post by flyboy71 »

Here is the entire system with all boards wired and ready to go in the enclosure. The front panel is due to arrive today and I will start assembling the unit this week. Next step is to finish all build guides and make this available as parts or a kit.
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PrismClonePreEnclosure.jpg
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mediatechnology
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Re: Texar Prism clone prototype

Post by mediatechnology »

Nice!

That I/O board in the upper right hand corner is, by itself, a useful gizmo.
The level pots are at the output of the line receiver?

The display board would also be useful.

You should consider having both as separate SKUs in your store.
I think they'd sell.
flyboy71
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Re: Texar Prism clone prototype

Post by flyboy71 »

mediatechnology wrote: Mon Aug 30, 2021 6:27 am That I/O board in the upper right hand corner is, by itself, a useful gizmo.
The level pots are at the output of the line receiver?
Yes, they are. It also has input level pots. Right now I just stuck some trimpots on it to test it out. The 8 position blocks on the right side are power supply in and power supply distribution out to the main processor boards. Really cleans up wiring. Some users might want to use their own IO board to convert levels and for matching but this is a bare bones THAT 1246 / THAT 1646 board with relay bypass.
mediatechnology wrote: Mon Aug 30, 2021 6:27 am The display board would also be useful.
It could be. Its just a shift register IC driving 16 LEDs. I'm considering a spinoff of it as a VU meter or something.
mediatechnology wrote: Mon Aug 30, 2021 6:27 am You should consider having both as separate SKUs in your store.
I think they'd sell.
Yes
My project and tutorial site: https://ornerscorner.neocities.org/

"Things are more like they are now then they ever were before" - Dwight
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mediatechnology
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Re: Texar Prism clone prototype

Post by mediatechnology »

It could be. Its just a shift register IC driving 16 LEDs. I'm considering a spinoff of it as a VU meter or something.
Make sure it also has DC gain reduction display capability.
I still get requests for the 10/20 segment LM3914 meters we used for the Pico Compressor Gain Reduction meter.
flyboy71
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Re: Texar Prism clone prototype

Post by flyboy71 »

Ill have to do a search for that one. It didn't come up when I searched the forum.

Oh, I did find an amp that went to '12' last week when I was out and about.
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mediatechnology
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Re: Texar Prism clone prototype

Post by mediatechnology »

I had to do a deep dive to find it:

https://ka-electronics.com/picocomp/PCB ... ematic.jpg
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mediatechnology
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Re: Texar Prism clone prototype

Post by mediatechnology »

Jeff sent me a blinky light demo of the protoype:

Video: https://proaudiodesignforum.com/content ... 0_Demo.mp4

There's no direct audio but nice visual action and a beautiful front panel.

Image
flyboy71
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Re: Texar Prism clone prototype Finished Version

Post by flyboy71 »

Here it is. The completed product as intended. The builders guide, parts lists and documentation will follow shortly based on this build. I will order boards to make available if there is interest in others wanting to build this (or improve on it).
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20210906_131258.jpg
20210906_130829.jpg
20210906_130625.jpg
20210906_130423.jpg
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mediatechnology
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Re: Texar Prism clone prototype Finished Version

Post by mediatechnology »

Very nice!

Did you do the aluminum side/rear metalwork?
It's very clean.

How did you do the back panel label?

The primary side of the TDK switcher might radiate some 60 Hz harmonics.
You might want to steer that loom away from the switcher.
It doesn't take much distance though - I experimented with the MC preamp in close proximity to one.
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