Date   

Re: Inputs on educational club projects

Jon - AI6W
 

Greydon’s idea has me excited about attending. 

I’m happy to help if needed.

nall, AI6W.

On Aug 5, 2022, at 15:14, Greydon - KC6SLE <lisagreydon@...> wrote:

Jon, count me in for what ever help is needed…it’s a great idea. 

Let’s take the 10 amp linear power supply as an example. It can be built in teachable and functional segments with students predicting, then testing the performance of each segment as the build proceeds:

- AC input and step down transformer; AC safety, proper fuse selection, input over voltage protection.  Test design output versus actual out put with VOM.

- Rectifier options, selection. and wave versus full wave, center tap versus. Add/build rectifier to AC section. Again observe DC output with VOM and Oscilloscope. 

Without making this message too long then move on to DC filter section, voltage regulator, then pass transistor drivers and pass transistors, then under and over voltage sections, metering options. Again the idea is to pause, teach and test as one builds.

My vision is to design and produce a full featured board which allows all of this, but also allows optional features, like metering, to be bypassed should the student elect to do so.

Greydon KC6SLE


On Aug 5, 2022, at 9:43 AM, Jon - KI6RT <jon@...> wrote:



Many of us have been discussing educational projects beyond RDF (Radio Direction Finders) that could be used for club builds (e.g. like the RDF kit building event that Doug, Tom, & Greydon ran). The intention behind the educational projects are to:
1. Learn basic electronics
2. Learn assembly techniques
3. Learn circuit testing techniques

Of course while producing something that has a high probability of working and providing a useful function. As discussed in this morning's Coffee Break Net the initial candidate projects are:
1. Basic Linear Power Supply (13.8V 10 Amp) 
2. Solar DC/DC Power Converter -- DC Input range from 12V - 120V, DC outputs of 5V 10 Amp, 13.8V 10 Amp with USB charging circuitry to charge phones/accessories while simultaneously running radios
    Have found this to be useful for emergencies (earthquake, fires, flood) when the grid is down... but car batteries, solar panels, hydroelectric or wind generators are available.
3. ?

If you have an input on what would be a simple and useful project for a club build please reply with your thoughts!

Jon - KI6RT


Re: Inputs on educational club projects

Greydon - KC6SLE
 

Jon, count me in for what ever help is needed…it’s a great idea. 

Let’s take the 10 amp linear power supply as an example. It can be built in teachable and functional segments with students predicting, then testing the performance of each segment as the build proceeds:

- AC input and step down transformer; AC safety, proper fuse selection, input over voltage protection.  Test design output versus actual out put with VOM.

- Rectifier options, selection. and wave versus full wave, center tap versus. Add/build rectifier to AC section. Again observe DC output with VOM and Oscilloscope. 

Without making this message too long then move on to DC filter section, voltage regulator, then pass transistor drivers and pass transistors, then under and over voltage sections, metering options. Again the idea is to pause, teach and test as one builds.

My vision is to design and produce a full featured board which allows all of this, but also allows optional features, like metering, to be bypassed should the student elect to do so.

Greydon KC6SLE


On Aug 5, 2022, at 9:43 AM, Jon - KI6RT <jon@...> wrote:



Many of us have been discussing educational projects beyond RDF (Radio Direction Finders) that could be used for club builds (e.g. like the RDF kit building event that Doug, Tom, & Greydon ran). The intention behind the educational projects are to:
1. Learn basic electronics
2. Learn assembly techniques
3. Learn circuit testing techniques

Of course while producing something that has a high probability of working and providing a useful function. As discussed in this morning's Coffee Break Net the initial candidate projects are:
1. Basic Linear Power Supply (13.8V 10 Amp) 
2. Solar DC/DC Power Converter -- DC Input range from 12V - 120V, DC outputs of 5V 10 Amp, 13.8V 10 Amp with USB charging circuitry to charge phones/accessories while simultaneously running radios
    Have found this to be useful for emergencies (earthquake, fires, flood) when the grid is down... but car batteries, solar panels, hydroelectric or wind generators are available.
3. ?

If you have an input on what would be a simple and useful project for a club build please reply with your thoughts!

Jon - KI6RT


Inputs on educational club projects

Jon - KI6RT
 

Many of us have been discussing educational projects beyond RDF (Radio Direction Finders) that could be used for club builds (e.g. like the RDF kit building event that Doug, Tom, & Greydon ran). The intention behind the educational projects are to:
1. Learn basic electronics
2. Learn assembly techniques
3. Learn circuit testing techniques

Of course while producing something that has a high probability of working and providing a useful function. As discussed in this morning's Coffee Break Net the initial candidate projects are:
1. Basic Linear Power Supply (13.8V 10 Amp) 
2. Solar DC/DC Power Converter -- DC Input range from 12V - 120V, DC outputs of 5V 10 Amp, 13.8V 10 Amp with USB charging circuitry to charge phones/accessories while simultaneously running radios
    Have found this to be useful for emergencies (earthquake, fires, flood) when the grid is down... but car batteries, solar panels, hydroelectric or wind generators are available.
3. ?

If you have an input on what would be a simple and useful project for a club build please reply with your thoughts!

Jon - KI6RT


Now: SFARC Net - 08/04/2022 #cal-notice

Group Notification <noreply@...>
 

SFARC Net

When:
08/04/2022
7:30pm to 8:30pm
(UTC-07:00) America/Los Angeles

Where:
W6EK Repeater - 145.430 -600, PL162.2

View Event

Description:
Check-in for Club updates from Officers and members, QSTs and more. Everyone is welcome!


For Sale: Heathkit C3 Condenser Checker #forsale

Jim - WA8MPA
 

For Sale: Very nice Heathkit C3 Condenser Checker. Range: 10pf -  1000 mfd,  Leakage test  for 25 volts - 450 volts, Also a Resistive measuring instrument. From NI2U estate. Can be seen at my QTH or will email pictures. $50.00 USD Jim WA8MPA (530) 305-0237


Event: Elmer Net - 08/03/2022 #cal-reminder

Group Notification <noreply@...>
 

Reminder: Elmer Net

When:
08/03/2022
7:30pm to 8:30pm
(UTC-07:00) America/Los Angeles

Where:
W6EK Repeater - 145.430 -600, PL162.2

View Event

Description:

The Elmer Net meets every 1st and 3rd Wednesday, and is devoted to answering your questions, solving puzzling issues related to ham radio, and scheduling help for all Hams. No question is "stupid". We encourage everyone to ask away so we can all learn and grow our knowledge together. Web address: http://w6ek.org/nets.html


Event: SFARC Net - 08/04/2022 #cal-reminder

Group Notification <noreply@...>
 

Reminder: SFARC Net

When:
08/04/2022
7:30pm to 8:30pm
(UTC-07:00) America/Los Angeles

Where:
W6EK Repeater - 145.430 -600, PL162.2

View Event

Description:
Check-in for Club updates from Officers and members, QSTs and more. Everyone is welcome!


Re: Revolutionary new torroids are now available

Gerry - WA6E
 

I think my new GPS employs those toroids.

Gerry
WA6E



On 8/1/2022 11:54 AM, Rob - KM6YKX wrote:
Check out these revolutionary new torroids! 



73, Rob - KM6YKX


Re: Revolutionary new torroids are now available

Alan - KB4GOJ
 

I was trying to find more information on this maybe I can replace the toroids that are in my nfed now, to improve my antennas.
--
Alan Seidner kb4goj


Monitor

Gerry - WA6E
 

I have the perfect solution for those of you looking for a big wall display for your Geochron clock or a large monitor for doing FT-8 on your Flex radio.  I have a 40" LED TV that I no longer need.  It is a Samsung model UN40B6000.  Works perfect and includes stand.  I'll make a good deal on it for any club member.  By the way - it also works as a TV.

Gerry
WA6E


Re: Revolutionary new torroids are now available

Jef - N5JEF
 

Finally an amazing toroid to match the amazing properties of some of the antennas I've been hearing about.

- Jef  N5JEF


On Mon, Aug 1, 2022 at 12:14 PM Brian - AI6US <ai6us@...> wrote:

:)

Can these be used with both ribbon and round wire? Could you diagram the cross-over/reverse winding?

73
Brian Gohl - AI6US
+01 (916) 770-7751 cell / text
On 8/1/2022 11:54 AM, Rob - KM6YKX wrote:
Check out these revolutionary new torroids! 



73, Rob - KM6YKX

--
Brian- AI6US


Re: Revolutionary new torroids are now available

Brian - AI6US
 

:)

Can these be used with both ribbon and round wire? Could you diagram the cross-over/reverse winding?

73
Brian Gohl - AI6US
+01 (916) 770-7751 cell / text
On 8/1/2022 11:54 AM, Rob - KM6YKX wrote:

Check out these revolutionary new torroids! 



73, Rob - KM6YKX

--
Brian- AI6US


Revolutionary new torroids are now available

Rob - KM6YKX
 

Check out these revolutionary new torroids! 



73, Rob - KM6YKX


Re: What repeaters do you monitor?

Herb - KM6JBI
 

Thanks Gerry!

I do find Rob entertaining, don't let him know.

--
Herb Garcia, KM6JBI


Re: What repeaters do you monitor?

Brian - AI6US
 

Gerry!!!! LOL!!!! Too Funny!
--
Brian- AI6US


Re: What repeaters do you monitor?

Gerry - WA6E
 

I have other repeaters programmed in - e.g. RAMS, NHills, Sutter Buttes, YDD, AK6OK, VacaARC, River City, Diablo - but I don't monitor them.  Sometimes when EK gets quiet and I long to hear more of Rob (KM6YKX) talking, I switch over to Diablo (145.33) where you're likely to hear him (he's there right now talking about the price of beef).  Most of the time I leave it on W6EK.

Gerry
WA6E

On 7/30/2022 1:36 PM, Herb - KM6JBI wrote:
I'm updating repeaters that I have programmed for my shack radio.

Just curious, who monitors what repeaters? I mostly park it on W6EK.

-Herb KM6JBI 


What repeaters do you monitor?

Herb - KM6JBI
 

I'm updating repeaters that I have programmed for my shack radio.

Just curious, who monitors what repeaters? I mostly park it on W6EK.

-Herb KM6JBI 


Re: MOTO-SOTA (hams on hogs) Motorcycle ride to a summits on the air. #sota

 


--whats the date.  Time?
KM6ZRN  Mark  in  Lincoln, Ca


Re: MOTO-SOTA (hams on hogs) Motorcycle ride to a summits on the air. #sota

 

I'm in if I have the day off!
--
KM6ZRN  Mark  in  Lincoln, Ca


#forsale Uniden Scanner BCD536HP $300 #forsale

Aaron - K6ABJ
 

Uniden Scanner BCD536HP for sale, $300.

This is Uniden's flagship Mobile/Base scanner. These are still in production, and new these sell for $599.

It features TrunkTracker V with support for APCO Project 25 Phase I and Phase II, X2-TDMA, Motorola, EDACS, and LTR Trunked Radio Systems

All of the frequencies for the entire United States are stored in the radio. Simply enter a zip code of where you are at and select what services you want to listen to, Fire, Law, Ham, Air, Rail, Marine, etc. The radio does the work for you, the days of entering in frequencies and services are over. Periodically download an updated and free database from the web, and your code plug is up-to-date. Of course you are free to modify the code plug as you desire, set up your Favorites Lists, and there are lots of options and settings to give you full control of the scanner.

This radio is in near-new condition. It has been powered on very little. It comes with the original box, AC Power Adapter, microSD card (installed), WiFi Dongle, DC cord with Orange Wire, Mounting Bracket with screw and foot, and Telescopic Antenna. The original "Cigarette Lighter DC Power Cord" has been converted into an "Anderson Power Pole DC Power Cord". New, a BCD536HP also comes with a standard USB-C Connection Cable, but mine does not, so you will have to pull one out of your drawer of spare parts or buy one for $5 on Amazon.

Aaron Jones, K6ABJ 
   
    ajones@... | Mobile: 916-715-7328





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