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6 Jul 2021 09:16:13 UTC
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Funway 1 builds: Music Maker (Project 10)
Building an electronic music maker from the Dick Smith Funway 1 book. More on Funway 1 here: https://vk3ye.com/historical.htm
PS: If you liked this video please consider supporting Amateur Radio VK3YE by:
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* Checking my books page at https://books.vk3ye.com to see if any appeal,
* Shopping on Amazon via: https://amzn.to/3iiDQXv , or
* Shopping on eBay via: https://ebay.us/i9DuWP
(then if you buy something I'll get a small commission at no cost to you)
...
https://www.youtube.com/watch?v=yb_Fpx7TUec
PS: If you liked this video please consider supporting Amateur Radio VK3YE by:
* Subscribing on YouTube,
* Checking my books page at https://books.vk3ye.com to see if any appeal,
* Shopping on Amazon via: https://amzn.to/3iiDQXv , or
* Shopping on eBay via: https://ebay.us/i9DuWP
(then if you buy something I'll get a small commission at no cost to you)
...
https://www.youtube.com/watch?v=yb_Fpx7TUec
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video/mp4
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English
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VIDEO
A FRE
a-frequency-agile-2-transistor-7-mhz-fm
Very few people use HF FM even though it's easy to generate. It's not a QRP mode as it's less efficient than SSB or DSB. But if signals are strong the audio quality can be excellent. This video describes a frequency agile 2 transistor exciter using a 7.2 MHz ceramic resonator. See my previous video (Frequency modulating a crystal oscillator for 147 MHz FM) for more information on the circuit.
It could be used as the basis of a transmitter for 7 MHz FM experiments (best during the day as there's less interference). You may even be able to link it to a VHF or UHF FM rig to make a crossband repeater.
...
https://www.youtube.com/watch?v=eMqvAHTteMY
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1 month ago
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video/mp4
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VIDEO
USING
using-the-new-cq-feature-on-echolink
I only try Echolink about once a year but there's a new feature that I thought it was worth exploring. More on Echolink at: https://echolink.org/
PS: If you liked this video please consider supporting Amateur Radio VK3YE by:
* Subscribing on YouTube,
* Checking my books page at https://books.vk3ye.com to see if any appeal,
* Shopping on Amazon via: https://amzn.to/3iiDQXv , or
* Shopping on eBay via: https://ebay.to/3rrGL3u
(then if you buy something I'll get a small commission at no cost to you)
...
https://www.youtube.com/watch?v=c-8cx_LFE1Y
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Created
1 month ago
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video/mp4
English
Controlling
VIDEO
TESTI
testing-a-bi-square-antenna-on-10-metres
Take two ten metre pieces of wire. Form into a square with the ends at the top and bottom. Support at the top and tie off the sides to maintain a square diamond shape. Connect to transceiver via antenna coupler that can handle high impedances.
That's all there is to it. About the simplest gain antenna anyone could build for 10 metres - provided you have a support at least 7 or 8 metres high.
It's supposed to have 3-4dB gain and a bidirectional figure 8 pattern, broadside to the wire. Did it live up to its claims?
The antenna was taken to a local beach for testing. It hasn't been compared to a reference antenna and not all reports were Q5. Nevertheless seven mostly DX contacts in a session with QRP can't be bad.
And this antenna, or more accurately its 20m wire, is exceptionally versatile. Join the top for a full wave loop on 20m. Unconnect one end for a 1/2 wave end-fed for 40m. In a pinch it will do as a 1/4 wave on 80m. Any other band up to 6m will tune up with a decent antenna coupler.
Acknowledgement for end piece The Radio Ham by Tony Hancock. Full versions of episode available for viewing elsewhere on Youtube.
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https://www.youtube.com/watch?v=xKNE25ZNgu4
Transaction
Created
1 month ago
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video/mp4
Controlling
VIDEO
TESTI
testing-a-five-transistor-audio
A 5 transistor audio amplifier from. http://www.ke3ij.com/amp.htm
I've built two and both worked first time. My component values are only slightly different to suit what I had. It's a great amplifier to add onto a homebrew receiver with very high gain and good volume. If you want a cheap but good amplifier for an electronic project this is ideal.
Links to the Q multiplier crystal set:
1. https://www.youtube.com/watch?v=4ix5gNrJy2E
2. https://www.youtube.com/watch?v=ckh0jIKGwpg
PS: Like these videos? Wish to support this channel? If so please store this link to Amazon Shopping as a bookmark or favourite. https://www.amazon.com/s?k=amateur+radio&camp=1789&creative=9325&linkCode=ur2&linkId=459b07464cb38819b3376396431e47d3&tag=v0108-20&ref=as_li_qf_sp_sr_tl Then when you buy something I receive a small commission (at no extra cost to you). Or check my books page to see if any appeal. http://home.alphalink.com.au/~parkerp/vk3yebooks.htm
...
https://www.youtube.com/watch?v=BwSeIP4c2j4
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1 month ago
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video/mp4
Controlling
VIDEO
NIGHT
night-am-radio-bandscan-with-a-wide
Tuning the AM broadcast band with a wideband hi fi AM stereo tuner. Due to its wide bandwidth selectivity is poor but the sharp loop antenna helps. For those interested the tuner is a Sherwood TD130S from the 1980s. There is no longer AM stereo in Australia so I was unable to test that function of it.
PS: If you liked this video please consider supporting Amateur Radio VK3YE by:
* Subscribing on YouTube,
* Checking my books page at https://books.vk3ye.com
* Shopping on Amazon via: https://amzn.to/3iiDQXv, or
* Shopping on eBay via: https://ebay.us/i9DuWP
(then if you buy something I'll get a small commission at no cost to you)
...
https://www.youtube.com/watch?v=vWgadO_JWzM
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Created
1 month ago
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video/mp4
English
Controlling
VIDEO
EXPLA
explainer-the-frg-7's-wonderful-wadley
The famous Yaesu FRG-7 receiver used the ingenious Wadley Loop. What is it and how did it manage to keep the receiver so stable? Learn more here as I run through a spreadsheet simulation.
PS: If you liked this video please consider supporting Amateur Radio VK3YE by:
* Subscribing on YouTube
* Checking my books page at https://books.vk3ye.com
* Shopping on Amazon via: https://amzn.to/3iiDQXv, or
* Shopping on eBay via: https://ebay.us/i9DuWP
(then if you buy something I'll get a small commission at no cost to you)
...
https://www.youtube.com/watch?v=zsxHfNreWtY
Transaction
Created
4 weeks ago
Content Type
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video/mp4
English
Controlling
VIDEO
LINK
link-dipole-vs-endfed-20m-wire-which
A casual test, using WSPR, of two popularly used portable antennas. A link dipole covering 40, 30 & 20m versus an end-fed wire 20 metres long. I alternate between the two to see if there is a pattern in reception reports. The test is done in the middle of the day when conditions should be fairly stable. CORRECTION: There are errors on the 30m slide. The numbers are right but the conclusions are not. The dipole was mostly worse not better.
PS: Like these videos? Wish to support this channel? If so please store this link to Amazon Shopping as a bookmark or favourite. https://www.amazon.com/s?k=amateur+radio&camp=1789&creative=9325&linkCode=ur2&linkId=459b07464cb38819b3376396431e47d3&tag=v0108-20&ref=as_li_qf_sp_sr_tl Then when you buy something I receive a small commission (at no extra cost to you). Or check my books page to see if any appeal. http://home.alphalink.com.au/~parkerp/vk3yebooks.htm
...
https://www.youtube.com/watch?v=l1olzWsdBhE
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Created
1 month ago
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video/mp4
Controlling
VIDEO
CAN'T
can-t-get-a-crystal-earphone-try-a-piezo
If you can't get a crystal earphone, as specified for crystal sets and some QRP transceiver designs, why not try a piezo transducer? This video features a comparison.
Note: A piezo buzzer is not to be confused with a piezo transducer. A buzzer is a little bigger and makes a noise when fed with DC. It is not suitable for this project.
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https://www.youtube.com/watch?v=HyYFWM5ZOic
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Created
1 month ago
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video/mp4
Controlling
VIDEO
THE I
the-inbox-segment-part-2
More replies to viewer comments. Answers to questions on magnetic loops, antenna wires, battery life, oscillator modules, CB, amateur licensing and more.
...
https://www.youtube.com/watch?v=qK2yZl7OezI
Transaction
Created
1 month ago
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video/mp4