Retrieving components of old circuit boards: desoldering and heat issues via a 100 W soldering iron

Fine tuning a local oscillator for long(er) waves with the help of a small thin aluminum plate/strip

Radio oscillator (1 PNP transistor) for Long Wave and VLF schematic and demo 145 KC-167 KC

Some insight in a radio tuning capacitor 10 Pf - 600 pF or higher (VLOG) via a test

The importance of "decoupling" electronic circuits all working on the same (say +) power lead VLOG

How to test ceramic and coil IF filters for eg 455 KC at a 10 KC wide bandwidth on their properties

Local oscillator for VLF radio 614 KC - 729 KC demo and schematic

Transmitter and reception coil on VLF tuned: how they couple on their peak resonance 100 KC-200 KC

How to use a small signal N-FET as amplifier or impedance transformer in audio or HF (schematic)

Zaltbommel, Netherlands, town at the Waal river: tourist impressions & more 11 May 2024

Making (hobby) circuit test boards in electronics with a very low stray inductance and - capacitance

Long Wave radio reception (say BBC in Europe) via a 2 transistor setup + a wire antenna (schematic)

Impression of the beautiful landscape in the Betuwe, Netherlands, 1 May 2024 (spring)

My garden & gardening in the Netherlands: 29 April 2024 (spring)

Testing an analog IF amplifier made with ceramic filters on 455 KC (VLOG) & more

Testing IR LEDS for 940 nM (nanoMeter) bought via ALI on their properties: they work very OK

Drying Maggi Leaves in a food dryer on April in the Netherlands

Infrared lantern/spotlight 950 nM lighting up in pitch dark how to make it VLOG 1

My paintings January - March 2024

Trickle Charger for 8 NiCad Cells (8 x 1.2 V = 9.6 Volt or 10.4 Volt) set 0-60 mA (schem. and demo)

Maxxter Bodycam ACT-BCAM-01 tests part 2 VLOG + schematic of that power supply again

Maxxter Bodycam ACT-BCAM-01 test (part 1) how to make its illogic work in some way demo & schematic

Polymeric clay and N-FET BF256 B that can replace the N-FET BF245 a,b,c, one minute video

Software Defined Radio (SDR) reception on Shortwave via certain adresses on the www (demo)

Importance of the antenna capacitor value in the foot of a wire antenna demo & VLOG

MW or LW radio stations in Europe received with help of the 20-2200 pF capacitor (in antenna filter)

Tunable capacitor 20 pF-2200 pF analog with a scale using colors to indicate the cap values (demo)

Tunable capacitor with a scale in the 20 pF-2200 pF range, usable for Radio experiments VLOG/Schem.

Receiving an unknown radio station from Eastern Europe (?, must be) on a home brew TRF receiver VLOG

Very old rectifier tube Philips A 204 nr 1876 Miniwatt, say from the 1920's VLOG & more