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Electronics Old and New by M Caldeira
Electronics Old and New by M Caldeira
Latest Videos
How tough can the FM IF alignment be? - Tube Radio Restoration Back to Basics part 11 #pcbway#
New Mini-Whip FM Switcher with Bias-T #pcbway#
The all-important IF alignment of the AM - Tube Radio Restoration Back to Basics part 10 #pcbway#
3D-Printing my Under-Shelf Modules with new Bambu Lab A1 Combo
Weve got LW and SW but where is the MW? - Tube Radio Restoration Back to Basics part 8
Preamp Tone Shaping and of lots of detail - Tube Radio Restoration Back to Basics part 6 #pcbway#
How To Check the Power Amp Stage - Tube Radio Restoration Back to Basics part 4 #pcbway#
The Parts That Make Up a Tube Radio - Tube Radio Restoration Back to Basics part 1
From Ugly to Elegant. Loewe-Opta Truxa 1701W pt.5 #pcbway#
Removing Hideous Paint From a Tube Radio. What a Nightmare Loewe-opta Truxa 1701w Pt.4
Push-to-Release DIY Antenna Hack Worked Out Beautifully Sony CRF-320 restoration Pt.7
Exploring The Fm Front-end A Humbling Journey With The Loewe-opta Truxa 1701w Pt.3 #pcbway#
Old caps need to be replaced as well as selenium rectifier? Loewe-Opta Truxa 1701W pt.2 #pcbway#
Upgrade Your Vintage Radio With Leds - Easy Diy Pcb Conversion #pcbway#
DIY push-to-latch antenna? Yes it can be done Sony CRF-320 restoration Pt.6
Resin 3D printed set of gears for Sony CRF-320 330 receivers that you can print yourself #pcbway#
My first Communications Receiver the Trio JR-500S aka Allied A-2516 restoration #pcbway#
The gears on this radio are actually quite easy to reproduce. Sony CRF-320 restoration Pt.3
Comparison between Filament and Resin 3D-printed Cable Rack #pcbway#
Elusive Shortwave band still making life difficult. Sony CRF-320 restoration Pt.2
All electronics is done as well as alignment. Graetz Melodia 519 restoration pt.3 #pcbway#
Sometimes its the small things that catch you out. Graetz Melodia 519 restoration pt.2
Build an ACDC voltage multiplier that extends low range of VOM and raises input impedance #pcbway#
Tube sound from amazing Raumklang speaker system. Graetz Melodia 519 restoration pt.1 #pcbway#
Full restoration of a Sony CRF-160 13-band receiver.
Complete cabinet finish in matt and were done. Blaupunkt Sultan 24300 restoration pt.4 #pcbway#
In-body Guitar Pickup BoosterBuffer using a single JFET that emulates a tube triode #pcbway#
How hard can it be to restring a dial cord? Blaupunkt Sultan 24300 restoration pt.3 #pcbway#
Audio stage restored and tested. Blaupunkt Sultan 24300 restoration pt.2 #pcbway#
A close look at a mint condition Grundig Satellit 2100 with SSB-kit 2000. #pcbway#
Done I finally have a portable radio experience. Philips Model 148 restoration part 4
Building the Op-amp Tester for single dual & quad packages. Dual-polarity LED indicator. #pcbway#
Capacitor Discharger de Luxe with dual polarity level indicator #pcbway#
Size does matter when it comes to great sound SABA Meersburg 100 restoration part 9
This radio was made to have Bluetooth SABA Meersburg 100 restoration part 8 #pcbway#
Simple but extremely useful LM317 variable power supply pcbs #pcbway#
Extending the FM band from 100MHz to 102MHz. SABA Meersburg 100 restoration part 7
Unusual FM IF of 6.75MHz alignment with plots. SABA Meersburg 100 restoration part 6 #pcbway#
Automatic tuning motor repair and alignment. SABA Meersburg 100 restoration part 5 #pcbway#
Automatic tuning leads to IF alignment leads to frustration. SABA Meersburg 100 restoration part 4
PCBs for Tube Radio Filter Capacitor and Selenium Rectifier replacement #pcbway#
It powers up and makes noise. But does it work as a radio? SABA Meersburg 100 restoration part 3
A look at the InfiRay P2 Pro after 3 weeks use. Could this be the ultimate thermal camera?
Power Supply and Audio. The two essentials. SABA Meersburg 100 restoration part 2 #pcbway#
Some radios have more guts than others. SABA Meersburg 100 restoration part 1 #pcbway#
The restoration of this birthday gift is complete. Nordmende Skandia V24 - restoration part 2
Great birthday gift - a restored treasure. Nordmende Skandia V24 - restoration part 1 #pcbway#
How to prepare a Tube Radio Restoration and how to keep a record of the project.
New PCBs for Tube Radio Filter Capacitor and Selenium Rectifier replacement #pcbway#
She was born in 1963 and is now reborn in 2023. Nordmende Skandia V24 - restoration part 3
