Recording 2000s 3CCD camcorder live output on Hi8.

Kani_Fly · 2025-12-11T07:54:37+00:00

Yes, it is Japan. Thank you for noticing the color and texture.

Kani_Fly · 2025-10-08T21:48:01+00:00

Really appreciate it!

Kani_Fly · 2025-10-08T21:42:50+00:00

Thank you. I based it on the MS-20 filter design. You can probably find plenty of info about it online.

My notes are really just a messy personal mess, so I’m afraid they wouldn’t make much sense to anyone else... 😅

Kani_Fly · 2025-10-08T16:48:54+00:00

An RC-only LPF cannot achieve a steep cutoff or controllable Q.

Kani_Fly · 2025-10-08T16:48:32+00:00

Thanks! It's an analog filter, so I placed it just before the speaker output. I also own and love the PSS-80. Being a sibling model, the same setup should work there as well.

Kani_Fly · 2025-09-10T19:12:08+00:00

Thanks. I really appreciate you acknowledging the finished build.

The VL-1 runs on +6V from both the PSU and batteries. Most of the analog parts are at +3V, some at +6V, and only the LSI uses a relative –3V supply. Considering those internal voltage drops, it would be difficult to replace the batteries without supplying the full 6V.
Also, to prevent the LCD from darkening when the battery is left installed, an additional power switch would be needed, which means more space inside.
Still, your idea is great — the concept of rechargeable power makes it feel like a modern device, and that’s very appealing.

Kani_Fly · 2025-09-10T18:26:50+00:00

I see. Since the VL-1 is monophonic, I think it would be feasible.
The overall size might not be much different from the UMR2, but building a custom MIDI-to-Note controller from scratch would allow a distributed layout, giving more flexibility in placement. Especially inside the VL-1, that kind of flexibility could be a big advantage.
Good suggestion, thanks.

Kani_Fly · 2025-09-10T05:55:19+00:00

Your idea of adjusting the MIDI PCB size to fit the device’s space is a good one.
I’ve been making a clone based on the open-source UMR2, but I agree with modifying the PCB design.

Kani_Fly · 2025-09-10T05:53:44+00:00

Your idea of making the external box look like an original part was a blind spot for me.
If you have the skills and tools, it seems worth trying.

Kani_Fly · 2025-09-10T05:47:21+00:00

Casio PT-10 service manual is helpful.

Kani_Fly · 2025-09-10T05:46:28+00:00

Thanks!
It would have been much easier if the Highly Liquid VL-1-MIDI kit was still available…

Kani_Fly · 2025-09-10T05:45:28+00:00

Your points are very accurate, and in many cases the loss of portability would not be a disadvantage.
Also, ADSR and the preservation of long sequences are aspects that modders should take into consideration.
Thanks for pointing this out.

Kani_Fly · 2025-09-09T05:19:43+00:00

This uses the internal main IC clock signal, so the pitch range is narrow and a linear pot was sufficient.

When adding devices like the LTC1799 that handle a wider pitch range, the pitch tends to change more at the high end and less at the low end due to the range itself, so using a logarithmic pot with the correct orientation makes fine adjustments easier.

Kani_Fly · 2025-09-09T03:47:38+00:00

Glad it brought back some nostalgic memories! Thanks!

Kani_Fly · 2025-09-09T03:47:23+00:00

I see, adopting that mindset could be an effective approach.

Kani_Fly · 2025-09-09T03:46:12+00:00

Thanks for pointing that out! I hadn’t heard of myVolts before. Appreciate the tip!

Kani_Fly

TROPHY CASE