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USB to serial adapter to transfer files from a modern to a vintage XT IBM PC
In this previous post I've talked about the restoration of an IBM vintage PC: https://davidegironi.blogspot.com/2023/12/vintage-ibm-5160-xt-pc-restoration.htmlOnce I've booted this PC the first thing I...
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Vintage IBM 5160 Schrack Elektronik 130W PSU repair
I've restored an IBM 5160 XT vintage PC (https://davidegironi.blogspot.com/2023/12/vintage-ibm-5160-xt-pc-restoration.html).It's based on MS-DOS 3.3, sometimes I boot it up, just to check if it works....
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Measure tube amplifier output transformer impedance
A tube amplifier output transformer is a crucial component in vacuum tube-based audio amplifiers. It's responsible for matching the high impedance of the vacuum tubes to the low impedance of the...
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900VA variac rehabbing
Last month I've found a big industrial enclosure with a giant knob on it throwed away. I've take it home and open it. To my surprise what's inside was a variac.A variac is a type of variable...
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Pioneer M-J310 amplifier bluetooth and standalone mod
I've found a Pioneer M-J310 amplifier.This amplifier it's a 90's stackable hifi vintage. It's a 50W+50W on 8ohm output. In class AB.The problem with this amplifier is that it comes alone without the...
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Pioneer XL-L77 subwoofer + Creative Inspire T3030 + Bluetooth
This time I've find a vintage Pioneer XL-L77 hi-fi in the dumpster.Amplifier display is not working, and also the amplifier has a big bump on enclosure. So I decide to keep just the subwoofer and...
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70's electronic surgical cutter instrument repair
My system is a veterinary, she has a 70's electronic surgical cut, suitable for electrosurgery.It's a LAEL with the front label electronic transitorized bistury STILUS. She does not use this anymore,...
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D05: vintage hybrid guitar amplifier (6AT6 + TDA2003)
D05 is a vintage hybrid guitar amplifier. The preamplifier stage is driven by a vacuum tube, the power stage by the a class AB solid state IC.It's built on top of an old portable turntable found in the...
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Kevler Pro SubWoofer TPA3116D2 mod
A friend give to me it's 5.1 speaker system subwoofer.The brand it's Kevler. It has an integrated amplifier for a 5.1 speaker. The problem is that the amplifier does not work. I've checked a few things...
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D06: solid state bass amplifier from JBL subwoofer
The D06 is a Bass Guitar Amplifier built on top of the solid state TDA2030 IC.The project starts from a salvaged JBL subwoofer. The enclose was in wood, front and back cover in plastic. the woofer cone...
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D07: 3W guitar tube amplifier from old record player based on the ECC83 and...
I found a Record Player by Philips, model EL3514 in the dumpster.Many parts are missing, but I decide to take this home.I disassemble it, to my surprise both the tubes are untouched.This player has a...
View ArticleSending email from Proxmox using postfix and gmail
Proxmox (https://www.proxmox.com/) is my reference hypervisor since a couple of years.One of the thing I was missing is sending email from it, so I decide to setup postfix (https://www.postfix.org/) to...
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MacBook Pro A1278 video issue repair
I've a MacBook Pro A1278 that I don't use that much.Last time I've power it on it has a strange issue with the display. It turn off after a while. And after a couple of days of usage it also start to...
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Enable copy&paste on Proxmox Windows VM
Find below a quick guide to enable copy & paste on Windows O.S. installed as VM on Proxmox.On you Proxmox hypervisor shell you have to install the Spice VD Agentapt install spice-vdagentThen you...
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MIDI adapter breakout board
MIDI adapters are essential tools for musicians and audio enthusiasts. They act as bridges between MIDI devices, allowing seamless communication.In this project, I’ll share the schematic of the adapter...
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Fixing the DOD FX-17 Wah/Volume Pedal’s Mechanical Noise
The DOD FX-17 is a compact pedal that functions as both a wah and volume pedal, with the added bonus of an expression output. Unlike typical treadle designs, this pedal features a proprietary control...
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