iiinova — where your digital self keeps evolving

KitsuneAlex @kitsunealex.karmakrafts.dev · 15/09/2026

Also assembled the first magic eye driver production board :) Testing is ongoing.

021

KitsuneAlex @kitsunealex.karmakrafts.dev · 11/09/2026

Working on the HV regulator board now

100

KitsuneAlex @kitsunealex.karmakrafts.dev · 11/09/2026

Power management/auxillary PSU board is done and tested

101

KitsuneAlex @kitsunealex.karmakrafts.dev · 05/09/2026

The whole set for this project is complete now :)

110

KitsuneAlex @kitsunealex.karmakrafts.dev · 05/09/2026

Load testing the first heater regulator board :)

100

KitsuneAlex @kitsunealex.karmakrafts.dev · 02/09/2026

Came up with a period accurate B+ regulator today. Gonna build this once i have the transformer too.

110

KitsuneAlex @kitsunealex.karmakrafts.dev · 31/08/2026

A less confusing illustration of what this circuit does. It creates two copies of the input signal, one that's identical, and another that's shifted 180° in phase. This is used for driving push-pull style arrangements.

120

KitsuneAlex @kitsunealex.karmakrafts.dev · 31/08/2026

Reason: i've been designing a compressor/limiter for my mastering chain. I just finished the buffer and cathodyne phase splitter. Ignore the noise feathering, my bench PSU is a switcher.

130

KitsuneAlex @kitsunealex.karmakrafts.dev · 28/08/2026

Man what an absolute crap day. Gonna do some tinkering to get my mind off of things, that always helps :3 Finally building some proper breakout boxes for my tubes on the bench.

240

KitsuneAlex @kitsunealex.karmakrafts.dev · 23/08/2026

The test fixture she told you not to worry about

110

KitsuneAlex @kitsunealex.karmakrafts.dev · 23/08/2026

Still waiting on some parts to arrive but built a little test fixture to replace the rotted/burned parts aaand... It works again! :)

110

KitsuneAlex @kitsunealex.karmakrafts.dev · 23/08/2026

Saving a PCB with water damage. Not pretty, but i made it work again :) Now waiting on replacement parts. PCB has a silicone conformal coat now too, that'll hopefully prevent this type of PCB rot.

160

KitsuneAlex @kitsunealex.karmakrafts.dev · 22/08/2026

Started a rough protoboard version of the complete driver today. Pretty happy with the progress so far. The 2x2 square of trimmers are the two bias/gain networks and the other 2 respectively are attack and release basicly.

030

KitsuneAlex @kitsunealex.karmakrafts.dev · 13/08/2026

The wiggly line is me turning the amplitude knob on my function generator. The integrator and gain stage are doing their thing!! :D

100

KitsuneAlex @kitsunealex.karmakrafts.dev · 12/08/2026

We're going all in and trusting LTSpice on this one. Building a mirrored version of the circuit now after tuning it a bit for more common parts.

100

KitsuneAlex @kitsunealex.karmakrafts.dev · 12/08/2026

Something like this should do :) Can be powered from a single 24V rail and easily generates the needed voltage swing. Easy for a single NPN because i only need µA's basicly.

100

KitsuneAlex @kitsunealex.karmakrafts.dev · 11/08/2026

Hello there~ Such a pretty phosphor, and factory level emission.

130

KitsuneAlex @kitsunealex.karmakrafts.dev · 01/08/2026

The new table extension really adds to the new setup :) Also, the cheap HV supply is a full on score, the only thing off is that the integrated meter needs calibration due to some overshoot. The actual output is spot on from 6 to 600V.

140

KitsuneAlex @kitsunealex.karmakrafts.dev · 29/07/2026

Oh yeah, it's looking and feeling very nice so far. This might be a secret tip chat. I'll test it a little and report back.

120

KitsuneAlex @kitsunealex.karmakrafts.dev · 22/07/2026

Installed and finished this today :) The layout did change again, but what can you do with old existing installations.

130

KitsuneAlex @kitsunealex.karmakrafts.dev · 15/07/2026

After working on it on and off, my new workbench is finally done :)

2100

KitsuneAlex @kitsunealex.karmakrafts.dev · 13/07/2026

Windows is dying very slowly. It has been for a while. And i'm just here like

020

KitsuneAlex @kitsunealex.karmakrafts.dev · 10/07/2026

Some rare electronics content: currently rebuilding a friend's Sony Tapedeck. This includes full recap, factory calibration and wiring cleanup of all old factory bodges. Very relaxing after a long work day sometimes :D