Radio coils & dipmeter demo, how to prevent damping from the Q

[@radiofun232]

LINKS TO VIDEOS WITH SCHEMATICS ON MEASUREMENT TECHNIQUES & TESTS
Analog frequency meter 45 Hz-19 KHz pt 1 ruclips.net/video/vm5JlyWqac4/видео.html
Analog frequency meter 45 Hz-19 KHz pt 2 ruclips.net/video/hNikBHDJwg4/видео.html
Test device to get insight in transformers and higher inductance coils ruclips.net/video/u9sP_b5Rfvo/видео.html
Getting more insight in radio coils with a FET oscillator ruclips.net/video/LrJWLe1XrSI/видео.html
Device to test radio coils on their Q (quality factor) ruclips.net/video/HR-apI_ZkKU/видео.html
Experimental SWR (standing wave ratio) meter on 27 MHz ruclips.net/video/ErIQmRDA4go/видео.html
RF absorption meter demo + schematic ruclips.net/video/fOnlyU2Qlwg/видео.html
Inductance measurement 1,2 uH - 180 uH + Q test ruclips.net/video/_iDtm8EhRRg/видео.html
Test oscillator sine wave with very good linearity 200 KHz-9 MHz ruclips.net/video/Ng49kGF3n8o/видео.html
The easiest way to test an IF can on 455 KHz ruclips.net/video/vyHWUt3UzTs/видео.html
Radio coils and dipmeter demo ruclips.net/video/g6QWsL9SNzY/видео.html
Radio coils, properties, basics, examples ruclips.net/video/Roi4qloauVE/видео.html
Testing IF coils on 455 KHz with an oscillator ruclips.net/video/ZRsD7pzhu6c/видео.html
What do you need for an electronic lab? ruclips.net/video/v503bmymCWw/видео.html
How to make a precision analog voltmeter part 1 ruclips.net/video/pfi5N-rkS8c/видео.html
How to make a precision analog voltmeter part 2 ruclips.net/video/5Dk1NMz-LQs/видео.html
How to make capacitors from 1-300 pF and measure them ruclips.net/video/4rD4J2kV854/видео.html
Oscilloscope: how to make a very basic one ruclips.net/video/4V3IXhTFqIM/видео.html
How to make a 455 KHz IF filter yourself and wobbulator it ruclips.net/video/P3zzuf9p8hI/видео.html
What to do with broken analog voltmeters? ruclips.net/video/XXCePo0ZIfk/видео.html
Test oscillator for coils ruclips.net/video/K2nkqnrwD7o/видео.html
Measuring inductance (0,4 uH-169 uH) via a frequency counter ruclips.net/video/ExikurAQKpY/видео.html
How to make a shunt ruclips.net/video/FN59W9SGou4/видео.html
Prevent transistor leads from breaking ruclips.net/video/iEe37oz4tww/видео.html
Testing IF cans/how to find out their properties ruclips.net/video/hOSRIJjHunI/видео.html
Measuring the health of a N-MOSFET with a Ohms-Voltmeter ruclips.net/video/cRtT5c_bkUI/видео.html
Electronic effects made visible ruclips.net/video/_f5sSOE3ijc/видео.html
Developing a precision capacitance meter ruclips.net/video/qhyqHk8wXJs/видео.html
Passive diode testing, part 1 ruclips.net/video/EI0-fj--Jjk/видео.html
Passive diode testing, part 2 ruclips.net/video/oKIcbubaUWw/видео.html
Silly MOSFET testing ruclips.net/video/QAvuZXjPNLM/видео.html
Diodes, common info ruclips.net/video/t_KztxcLXmc/видео.html
Digital frequency meter made from a radio with a digital display ruclips.net/video/5MzdJR19S7Y/видео.html
N-MOSFET (power type) tester (passive) ruclips.net/video/t25qwvHDDXE/видео.html
IF 455 KHz filter test with a wobbulator ruclips.net/video/crfK_DgSfGs/видео.html
Test from a 455 KHz IF filter (oscillator) ruclips.net/video/5wuHmHNESoY/видео.html
Extended scale precision voltmeter pt 1 ruclips.net/video/-z_j4MclCTk/видео.html
Extended scale precision voltmeter pt 2 ruclips.net/video/fC1QP_6OlAM/видео.html
Wheatstone bridge demonstration circuit ruclips.net/video/Y3-Mhil1uzY/видео.html
How to figure out an unknown transformer, part 1 ruclips.net/video/ceHe_0iuh_Y/видео.html
How to figure out an unknown transformer, part 2 ruclips.net/video/IDV530fM_oM/видео.html
Dipmeter: search the resonance frequency ruclips.net/video/QVTmiFbf7Gc/видео.html
Inside the Ferraris meter ruclips.net/video/i_ed0lgzfjw/видео.html
Do audio capacitors have a certain sound? Part 1 ruclips.net/video/nHtIg-0DQLU/видео.html
Do audio capacitors have a certain sound? Part 2 ruclips.net/video/4nylOtSATPk/видео.html
Do audio capacitors have a certain sound? Part 3 ruclips.net/video/rdpsjvYv4wg/видео.html
How to use a frequency counter, part 1 ruclips.net/video/0yfI5rRV3Pk/видео.html
How to use a frequency counter, part 2 ruclips.net/video/30Sowpu64ec/видео.html
Effects from coupling capacitors in audio circuits ruclips.net/video/eF8e-FmtDh4/видео.html
How to measure AC current ruclips.net/video/PWPqp3wHiS4/видео.html
Testing PVC tape on high voltage ruclips.net/video/RwmArfBUc8o/видео.html
Integrator and differentiator circuit, sound effect ruclips.net/video/OKCpDdwrhGY/видео.html
how to test switches on high currents ruclips.net/video/9rus9UnnL8M/видео.html
Inductance meter 0,4 uH-170uH for radio coils ruclips.net/video/THvEqSAKD6Q/видео.html
Measuring the resonance of a quartz crystal ruclips.net/video/vv2Xcjga_Vc/видео.html
MOSFET fundamentals (static test) ruclips.net/video/YUF7bwqNK28/видео.html
Inductance meter 1mH-100mH schematic ruclips.net/video/vi041V0oiR4/видео.html
Effect from clouds on a solar panel ruclips.net/video/Ub8G8E_IU9o/видео.html
Radiofun 232 on You tube, all channel info and links ruclips.net/video/xbgQ8T3oqh4/видео.html
My books are on the website from Lulu, search for author Ko Tilman

[@dennisqwertyuiop]

once you find coil frequency let dip meter sit and couple your frequency counter and it will show the frequency you found the coil to be

[@radiofun232]

***** Thanks, indeed, that is the way it works. Though it is somewhat complicated to test coils with the dipmeter when they are mounted in the electronic circuit.

[@amikhimji]

Great video thanks

[@radiofun232]

+Ami Khimji Thanks, you are welcome.

[@Kennynva]

I need to find the specs of a IF coil in an MW radio...is there a way to find this out...I do not have a diagram or schematic for this radio...the slug broke when I was aligning it...and the coil fell apart when I tried to remove..and replace the slug...is there a way???

[@radiofun232]

Without a schematic it is not easy to find the aim of the coil. Perhaps you can find a new ferrite core/slug?

[@Kennynva]

The top of the coil that goes into the bottom of the ferrite core has broken, and broke all the the wires to the post, It is one of those very small ones that is 1/4 square by 3/8s tall...this coil has a red top core, and adjust the location of the stations on the band.

[@Kennynva]

I have tried at least 6 different red coils with no luck..

[@radiofun232]

That will be a complicated repair. Perhaps you can find the schematic on the www to see what kind of coil it is

[@Kennynva]

I have looked everywhere on the net...and antique radios site to...40 people have looked at my message on there with no reply's. It is a National Panasonic RF-835