DSO-X Colorblind hack
I suffer the most common type of colorblindness, the red-green type, and more specifically, deuteranopia. This essentially means that I have difficulty telling colors with red and green components from each other. If you can’t see anything but a bunch of dots here (as I do) but you believe you can see correctly, you may […]
Sunvisor GPS Navigator
We decided not to get the built-in GPS navigation for the Mini Cooper because it is awfully expensive and from the reviews, it looks like it isn’t very good. I commited myself to install a TomTom navigator in the car, and it should be better, cheaper, and should look like a factory option. Goals: Completely […]
HP 8920A LCD conversion
The 8920A Radio Communications Test Set is a wonderful instrument but it has a terrible CRT display. The screen surface is very light and, unless you are in a dark room, it leaves little room for contrast when something appears on the display. I have been avoiding using it because the display was difficult to […]
HP 6632B OLED display
The HP 6632B is a very nice power supply and it can be had cheap but since it is now quite old the VFD display will very probably have a few segments severly worn-out which makes reading it difficult. Finding a replacement VFD for a reasonable amount is not possible, I believe HP replaced the […]
OPMI-1 LED Conversion
I was lucky enough to get an old Zeiss OPMI-1 surginal microscope, with very high quality optics. Surgical microscopes differ from conventional ones in that they leave plenty of room between the subject and the microscope to work with hands and tools, which makes them ideal to work in electronics. This particular one worked great […]
HP 8753ES LED Backlight
The 8753ES VNA is a wonderful instrument, but it has many years on its back, and you may find yourself with a barely readable screen due to poor backlight. I have a dedicated article on converting to LED backlight the Sharp LCD module that Agilent used in the 8753ES (Sharp LQ084V1DG21). But in this one, […]
In-Wall USB Outlet
USB Outlet The kitchen worktop is the ideal place for placing the mobile devices for charging during the night. But we were tired of having to use three diferent chargers, usig three AC outlets, and moving them from the drawer to the wall everyday. I found multi-port USB chargers but I thought, why not having […]
Luxman A383 DAC Upgrade
This old amplifier sounds awesome but I got tired of depending on soundcards or external DAC for the HTPC. A very annoying issue was the loud POP! sound from the IQ7 speakers every time the HTPC went to or came out from sleep. Not wanting any more channels than left+right, I did not want to […]
KORG Triton CF Upgrade
Tired of floppy and Jazz disks, I looked for a better storage solution to install in the Triton. I tried a Floppy-to-USB emulator and it worked well but the 1.44MB limit was still there. Although a bit more complex, using a SCSI>IDE adaptor and a IDE CF reader looked very well on paper. So I […]
Kenwood TM451 TCXO Upgrade
Being used in a mountain-top repeater, our TM451 transceivers suffered severe frequency shifts as the temperature varied. They are exposed to temperatures as low as -15C in winter and as high as 45C in summer, and the original crystal oscillator is too sensitive to this variations. We measured the repeater to be as high as […]