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Antonelli COMET 2616 80's organ repair
The Antonelli COMET 2616 is a 61 key organ.Antonelli was an Italian company, established in 1935. During the 80's the Antonelli mostly builds kids learning music instruments, luckily they also have...
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DoctcoD: an open source Medical Practice Management Software
DoctcoD is a Medical Practice Management Software.It is free, released under Open Source license.You can trace your patient, treatments, scheduling appointments, doing reports, and billing management....
View ArticleDentneD (Dental Practice Management Software) video update
This post is follow up of this post here http://davidegironi.blogspot.com/2018/07/dentned-open-source-dental-practice.html: about the DentneD open source Dental Practice Management SoftwareHere you can...
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A4 home-made Laser Engraver firmware update Grbl 0.9 to Grbl 1.1h
A few year ago I've build a Laser Engraver out of a an old scanner and an old printer.This laser engraver it's based on grbl (https://github.com/gnea/grbl) version 0.9. I would like to update the...
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1W Guitar Amplifier in a 60's portable radio case
I've found a junked 60's portable radio by Harmonius, which it used to be a small Italian manufacturer.I like the shape of the radio, so I decide to use it.Unluckily the back case of the radio is...
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MiniProto, a mini protocol for data exchange between devices
MiniProto is a mini protocol for data exchange between devices.It is build and tested over the serial communication protocol, but it can be ported to others.It is designed to send strings and byte...
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Video intercom additional buzzer circuit
My parents has to change their doorbell. They have one 90's audio only doorbell with multiwire connection.We buy a new video doorbell. It's the Vimar K40910 Kit.This doorbell cames in two parts: the...
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AVR serial to 8 digits seven segment numeric display
The avr_serial7segment8bitdisplay is an ATmega8 based device that get's 8 digits numbers from the UART line and display to a seven segment display with 8 digits.As example, it can be used as exchange...
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Open source .NET software license manager
DGLicenseLib is .NET library you can use in your project to manage software licenses.If you distribute your software and need a way to give your customer a personalized license number, this library...
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Vintage Philips speakers restoration with TPA3118 bluetooth amplifier
A few month ago I've restored a vintage Philips RH591 amplifier from 70's. I've sold this amplifier but I've kept the speakers cause I liked it. They have two 5 inch octagonal AD-5060/M8 midrange...
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UNI-T UT61D AC mode repair
My first "pretty good" multimeter was a UNI-T UT61D.Now it's discontinued and one can find a better one for a low price, but backin time it was a serious replacement for my 5 bucks cheap meter Main...
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Dual Terratec Phase 88 Rack audio interface repair
Terratec Phase 88 Rack is mid 2000 8 channel in/out audio interface. It has 8 balanced/unbalanced input, 2 of them phantom powered, and 8 balanced/unbalanced output. It can reacord at 96 kHz.For more...
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Tap tempo delay guitar pedal by Fattoria Mendoza repair
A friend of mine give me his non-functional tap tempo delay guitar pedal.The problem with this pedal was that one can hear an annoying clicking sound while playing. Also after trying it for a while it...
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X/Y label plotter to vinyl cutter and pen plotter conversion using grbl
I've a found a plotter. The VP600 Basic by Brady is a X-Y pen plotter for tag.Of course there's some part broken and missing.The pen holder and the power supply are missing, the plotter has a dent on...
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San Pellegrino Terme Germanium Distortion pedal
I've been in San Pellegrino Terme (https://en.wikipedia.org/wiki/San_Pellegrino_Terme) this winter.San Pellegrino Terme is a thermal location, so I had a vacation there. I bought a tin of candies which...
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Mono Speaker for mixing using a Tannoy ceiling monitor
This is the mono cubic speaker I've built mainly for mixing audio.It's been a few month that I want to add a mono speaker to my mixing station. Switching to mono for the mixing process is something...
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Vorwerk VK-140 Folletto vacuum repair
Folletto vacuum cleaner are made by Vorwerkhttps://en.wikipedia.org/wiki/Vorwerk_(company) and sold here in italy with the brand of "Folletto" (Elf in english).I've found a VK-140, that is a model from...
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MicroProto, a micro protocol for data exchange between devices
MicroProto is a mini protocol for data exchange between devices. It is build and tested over the serial communication protocol, but it can be ported to others. It is designed to send strings and byte...
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Vintage IBM 5160 XT PC restoration
The IBM Personal Computer XT model 5160 is the second computer in the IBM Personal Computer line, released on March 8, 1983 (https://en.wikipedia.org/wiki/IBM_Personal_Computer_XT).I've found one in...
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IBM AT (PS/2) to XT (DIN) keyboard conversion
In my blog post here: https://davidegironi.blogspot.com/2023/12/vintage-ibm-5160-xt-pc-restoration.html I've talked about the restoration of an IBM 5160 vintage PC.The first time I've tried to boot...
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