Date   

Re: Socketing processor in Slop Bucket: Yes or No

Steven Weber
 

The other issue is since I didn’t bring out an ISP header, it would be a lot harder to blast new firmware into the chip should that become desired.

 

Roy,

Ive socketed all 328 chips on my two soda pops and now my slop bucket.

I find removing a soldered in 8 pin DIP bad enough I wouldnt want to face trying a 28 pin chip, when a socket is so much easier if you happen to blow the chip or even just blow one of the inputs.

Regards Simon

 


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Re: Scans of SODA POP Coaster PCB?

at91r40008 <yvon@...>
 

Is this what you wanted John?


73,  Yvon NU6I


On March 21, 2018 at 11:40 AM John Sutter wrote:


I started building my coaster before taking a scan of the PCB.
I almost always do this for reference and in this particular case
I wanted to reverse engineer the schematic so I could come up with
mods to get it as close to the final project as possible. But I
just went ahead and started building, and have already started
obscuring traces. Sigh..

Does anyone have an unbuilt coaster PCB they could scan or take
clear pictures of the top and bottom for me?

--
John Sutter
W1JDS CM87xi


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Re: Socketing processor in Slop Bucket: Yes or No

Kelly Jack
 

Roy,

Ive socketed all 328 chips on my two soda pops and now my slop bucket.

I find removing a soldered in 8 pin DIP bad enough I wouldnt want to face trying a 28 pin chip, when a socket is so much easier if you happen to blow the chip or even just blow one of the inputs.

Regards Simon


Socketing processor in Slop Bucket: Yes or No

Roy Appleton
 

Trying to decide if I should socket the processor. Any problems with doing that? What's everyone else doing?

Thanks,
Roy
WA0YMH


Re: For sale listing to come...

Bruce Beford N1RX
 

Thanks Steve.
I could see by looking at my groups.io subscriptions, that I was on "newbie" moderation. I figured that a single message would take care of that. Most of my groups- the ones that have been converted from yahoo, are like this. That way, the moderator can weed out any bots or spammers that were subscribed to the old list.
Carry on!
Bruce, N1RX


Scans of SODA POP Coaster PCB?

 

I started building my coaster before taking a scan of the PCB.
I almost always do this for reference and in this particular case
I wanted to reverse engineer the schematic so I could come up with
mods to get it as close to the final project as possible.  But I
just went ahead and started building, and have already started
obscuring traces.  Sigh..

Does anyone have an unbuilt coaster PCB they could scan or take
clear pictures of the top and bottom for me?

--
John Sutter
W1JDS CM87xi


Re: Is the Soda Pop ancient history?

Steven Weber
 

Maybe, it seems that was more popular then the Slop Bucket.

 

If I do, I’d like to find a better solution to the display multiplexing noise then blanking the display.

 

Steve KD1JV

 

Subject: [kd1jvdesigns] Is the Soda Pop ancient history?

 

Steve,
Do you plan to do another run of Soda Pop kits? I sold my kit and now regret it, ha!

Thanks,
Michael N6MST

 


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Is the Soda Pop ancient history?

Michael N6MST
 

Steve,
Do you plan to do another run of Soda Pop kits? I sold my kit and now regret it, ha!

Thanks,
Michael N6MST


Re: For sale listing to come...

JAMES DAVIDSON
 


On Wed, Mar 21, 2018, 8:39 AM Steven Weber <steve.kd1jv@...> wrote:

The first email to the group has to be approved by me, that is to eliminate robots and spammers. Sometimes it takes me a few hours (or a day) to get around to doing that. Once you’ve been approved, any messages from your address automatically get posted.

 

Steve KD1JV

 

Your E-mail made it to me, so if you're moderated someone passed it through.  Heck, I might be moderated and you won't see my reply.

 

Vy73 -- Mike -- KD5KC.

 

 

 

 

Going through my stable of built and unbuilt kd1jv designs. Hope to have a for sale listing in the next few weeks (once I determine status of each item, manuals, etc). My first post to the io group, so not sure if I am moderated or not...
73,
Bruce N1RX

 


Virus-free. www.avg.com


Re: For sale listing to come...

Steven Weber
 

The first email to the group has to be approved by me, that is to eliminate robots and spammers. Sometimes it takes me a few hours (or a day) to get around to doing that. Once you’ve been approved, any messages from your address automatically get posted.

 

Steve KD1JV

 

Your E-mail made it to me, so if you're moderated someone passed it through.  Heck, I might be moderated and you won't see my reply.

 

Vy73 -- Mike -- KD5KC.

 

 

 

 

Going through my stable of built and unbuilt kd1jv designs. Hope to have a for sale listing in the next few weeks (once I determine status of each item, manuals, etc). My first post to the io group, so not sure if I am moderated or not...
73,
Bruce N1RX

 


Virus-free. www.avg.com


Re: 40m slop bucket

Kelly Jack
 

sn48 up and running on 40m after the last few parts for the filters arrived today.

Over 8W CW at 13.8V. Heatsink gets a little warm.

Hears well.

Will check harmonics tomorrow and try for a contact if all good.

Thanks Allison for your guidance.

Learned how to make a new filter in Elsie - happy days when I'm learning how to design something.

Thanks Steve, love this rig, it will be my new portable rig. 

Need to think about a box now.



73



Simon


Re: Is brown the new green?

Roy Appleton
 

Will do! 👍😀

Roy
WA0YMH

On Tue, Mar 20, 2018, 8:27 PM Steven Weber <steve.kd1jv@...> wrote:

Well, according to page 7, it is.

 

I’ve corrected the diagram and description on page 7 to match page 3. I’ve also corrected the part numbering on the schematic to match the board. I’ll up load a new manual with these corrections soon, so if you notice any other details, speak up 😊

 

Steve KD1JV

 

Thanks John, I'm sure you're right!

 

Thanks,

Roy

WA0YMH

 

On Tue, Mar 20, 2018, 5:21 PM John Sutter <jds@...> wrote:

The parts list on page 3 says the MMBF4416 is marked brown and the page you're
referring to says Q2 is an MMBF4416, so I think you're good.

- John
W1JDS

On 3/20/2018 2:43 PM, Roy Appleton wrote:

Just started my kit today and opened the bag of semiconductors and Q2 is supposed to be marked with a green color but the only single transistor I found was marked with a brown color. Is that supposed to be Q2.

Thanks,
Roy
WA0YMH




-- 
John Sutter
W1JDS CM87xi

 


Virus-free. www.avg.com


Re: Is brown the new green?

Steven Weber
 

Well, according to page 7, it is.

 

I’ve corrected the diagram and description on page 7 to match page 3. I’ve also corrected the part numbering on the schematic to match the board. I’ll up load a new manual with these corrections soon, so if you notice any other details, speak up 😊

 

Steve KD1JV

 

Thanks John, I'm sure you're right!

 

Thanks,

Roy

WA0YMH

 

On Tue, Mar 20, 2018, 5:21 PM John Sutter <jds@...> wrote:

The parts list on page 3 says the MMBF4416 is marked brown and the page you're
referring to says Q2 is an MMBF4416, so I think you're good.

- John
W1JDS

On 3/20/2018 2:43 PM, Roy Appleton wrote:

Just started my kit today and opened the bag of semiconductors and Q2 is supposed to be marked with a green color but the only single transistor I found was marked with a brown color. Is that supposed to be Q2.

Thanks,
Roy
WA0YMH




-- 
John Sutter
W1JDS CM87xi

 


Virus-free. www.avg.com


Re: For sale listing to come...

Mike Olbrisch
 

Your E-mail made it to me, so if you're moderated someone passed it through.  Heck, I might be moderated and you won't see my reply.

 

Vy73 -- Mike -- KD5KC.

 

 

 

From: kd1jvdesigns@groups.io [mailto:kd1jvdesigns@groups.io] On Behalf Of Bruce Beford N1RX
Sent: Tuesday, March 20, 2018 16:57
To: kd1jvdesigns@groups.io
Subject: [kd1jvdesigns] For sale listing to come...

 

Going through my stable of built and unbuilt kd1jv designs. Hope to have a for sale listing in the next few weeks (once I determine status of each item, manuals, etc). My first post to the io group, so not sure if I am moderated or not...
73,
Bruce N1RX


For sale listing to come...

Bruce Beford N1RX
 

Going through my stable of built and unbuilt kd1jv designs. Hope to have a for sale listing in the next few weeks (once I determine status of each item, manuals, etc). My first post to the io group, so not sure if I am moderated or not...
73,
Bruce N1RX


Re: Is brown the new green?

Roy Appleton
 

Thanks John, I'm sure you're right!

Thanks,
Roy
WA0YMH

On Tue, Mar 20, 2018, 5:21 PM John Sutter <jds@...> wrote:
The parts list on page 3 says the MMBF4416 is marked brown and the page you're
referring to says Q2 is an MMBF4416, so I think you're good.

- John
W1JDS

On 3/20/2018 2:43 PM, Roy Appleton wrote:
Just started my kit today and opened the bag of semiconductors and Q2 is supposed to be marked with a green color but the only single transistor I found was marked with a brown color. Is that supposed to be Q2.

Thanks,
Roy
WA0YMH



-- 
John Sutter
W1JDS CM87xi


Re: Is brown the new green?

 

The parts list on page 3 says the MMBF4416 is marked brown and the page you're
referring to says Q2 is an MMBF4416, so I think you're good.

- John
W1JDS

On 3/20/2018 2:43 PM, Roy Appleton wrote:
Just started my kit today and opened the bag of semiconductors and Q2 is supposed to be marked with a green color but the only single transistor I found was marked with a brown color. Is that supposed to be Q2.

Thanks,
Roy
WA0YMH



-- 
John Sutter
W1JDS CM87xi


Is brown the new green?

Roy Appleton
 

Just started my kit today and opened the bag of semiconductors and Q2 is supposed to be marked with a green color but the only single transistor I found was marked with a brown color. Is that supposed to be Q2.

Thanks,
Roy
WA0YMH


Re: sn23 built and working

ajparent1/kb1gmx
 

A few notes:

Power at 13.8V is a very respectable 7W single tone.
TX current peaks 1.1A @ 13.8V the supply or battery needs to be able to supply this.
TX power does vary with supply voltage and falls off fast under 12V. 
RX sensitivity on this one checks in and under .1uV, it has a very quiet receiver.
RX power 53mA,  and receives without performance decay down to under 9V.

For portable ops a 1p4s lipo pack using LG 2800mah 18650s should run a very long time
making it power efficient.  I'd think 10 AA NiMh 2200mah cells would be fine for many
active hours at modest cost plus being easy to charge. 

One of the water resistant cases campers and hikers use might be an option.
One I've used before is from one of the crafts stores that sell various sized wood boxes.
With a bit of extra space it could hold, the module, mic, headphone, battery, antenna
without being unduly large.

Note mod 5 is install small switch on panel for VOX enable.  Works well with a random
headset with a electret boom mic.


Allison


Re: sn23 built and working

ajparent1/kb1gmx
 

Based on schematic and board layout I've made mod 2 to mine.

Mod-1 was 680ohms and 10uf between pins 1 and 8 of the LM386 audio amp for a bit more gain.
mod-2 is three 1N4007 (they were handy) diodes in series, these are inserted in the trace from 
the power input diode (D9 and R66) to dump about 1.5V so the 5V regulator u10 runs cooler
on 16.8V (4s1P liPo at full charge).  Testing verifies it receives fine down to 8.8V.
Note: At 16V the power output is a very nontrivial 11W (Bird 43, 25W HF slug, and Bird load).
For SSB there is no undue heating of the final.

Mod-3 replace nylon screw with shoulder washer and metal 4-40 screw.  I did this as nylon/plastic
screws loosen (stretch) from even minor heating.  

Mod 4 will be to replace the backside heatsink with a aluminum block to the back of the case
(aluminum) as heat transfer and also the spacer for that corner.  The block will be threaded
4-40 so the mounting screw for the final with shoulder insulator can be easily accessed if
needed.  Part of package planning is the case will be metallic.

Bias with the correct 1n4733 zener, bias FOR MINE is set for 60ma based on spec analyser
for best IMD.  The diode supplied was a 1n4731.  Since I have a supply of many different
zeners it was not an issue.


Allison/KB1GMX