Ohh yes Nikos. Is like part of the learning process.. with some filtering, some RF amp... maybe a better mixer, a good stable VFO, some CW audio filter and a good AF amp... we end up with something even better. But I start slow so I can understand things first hehe. 73 my friend.
Thank you Klaus. Noooo... I just built the circuit and made little changes. Rolf - DL6ZB that designed the receiver is the genius 😁😁. Really nice project. I love it. 73, YO6DXE.
It's a really simple one and to be honest now after building so many regen receiver thinking that they are the easiest to build by beginners, I realize I was so wrong. This one has less headaches and more chances of success for a beginner. 73, YO6DXE.
Thanks Nigel. I had to cut a little part ... the one when I started looking at the computer as I was talking about you saying ... I finally got away from regens Nigel. But I started laughing badly after that so I had to cut that hahaha. There is the same schematic with two transistors on the AF side for low impedance headphones. It works with 26 Ohms even as it is now but of course the audio is low. But it was a really nice project to play with. I keep looking at schematics for superhet as well. But I will try a few more on DC receivers. Some with the parts I have from you. 73 Nigel. Good luck with your work there. Here... too much work.
That's funny, Chip. Because just the other day i was looking at "offerings to the God of the airwaves" shelf looking at my 4 versions of Sputnik wondering if there will ever be a time they might get a little brother or sister before my soldering iron goes cold forever, and, here it is 😅
Wow very nice receiver for it's simplicity. It's definitely made for you 😄. soo let me add my spices on it 😜... You can add 2 diodes in the mixer it's definitely gonna be better , also extra two diode won't kill anybody. 😃. For more stability inductor and crystal should be in aluminum box. That's it anything else will make it complicated.
The oscillator would definitely be better enclosed. I was wondering if using a 4 diores ring mixer would be better. But since I don't know much yet about the DC receivers... I was really into experimenting to see how that works hahaha. Thanks buddy. I need to find a schematic and see how I add the other two. It's easier to understand when I see a schematic 😅.
I had lots of fun with this one. Really nice indeed David. And I didn't even used quality parts... just junk box stuff for testing only. 73 buddy, YO6DXE.
It does sounds nice. Honestly I was not expecting it to sound this nice. I really like it, especially because is so simple. Doing good here... just a little tired. I hope you are way better though 😁. 73 my friend.
if i wanted to build for another frequency, say 15m, would the trifilar still be 8 turns? obviously my other option would be another mixer up front converting 15m down to 7MHz, (or even 10.1MHz because i have a nice xtal if filter at 10.1 on hand), but i like the simplicity to start with
From the original article... the transformer will stay the same no matter what band you build it for. You just have to change the 100pF capacitors from the oscillator circuit. I think the more you go towards 80m the less capacity you need... the more you go towards the 10m band the more capacity you need. I am not sure is just what I remember from playing around with VXO circuits in the past. Everything else will remain the same. Of course... you are using the crystal of choice. I also loved the simplicity and that is the reason I didn't want to "complicate" the circuit trying to improve anything but the VXO. love it just as it is. 73, YO6DXE. Here is a link to the original article: www.dl6zb.de/minimal_art_receiver/Minimal%20Art%20Direct%20Conversion%20Receiver%20with%202%20BJT.html
👍Thank you for sharing. I would not worry about experimenting with modifications. As soon as I get a circuit working, the modifications begin 😂.
Hahahaha... usually that is what I do as well 😅😅.
Hi Ciprian, you really found a nice project and it's analogue, exactly what I like. 🙂
mny tnx 73 Bernd
Ohhh I was so happy to find this one. I had it on the to do list for a long time. I really like it as well. 73, YO6DXE.
Nice video about this Direct Conversation receiver, sounds pretty stable too! Covering the whole CW band is perfect for portable swl! 73
Ohh yes Nikos. Is like part of the learning process.. with some filtering, some RF amp... maybe a better mixer, a good stable VFO, some CW audio filter and a good AF amp... we end up with something even better. But I start slow so I can understand things first hehe. 73 my friend.
@@dxexplorer Of course but it would be way more complicated haha. Personally i would add only the Cw audio filter and have a nice, simple receiver.
I still want to keep it simple when with all the stuff I described... stick to the basics... just a few more parts and we have it all. 😁😁
@@dxexplorer you are correct. 73 my friend
@@sv2tcb 73 Nikos and good luck there finishing your antenna.
Brilliant job! It works very well with so few components. You are a genius!
Thank you Klaus. Noooo... I just built the circuit and made little changes. Rolf - DL6ZB that designed the receiver is the genius 😁😁. Really nice project. I love it. 73, YO6DXE.
Fabulous. I've been wanting to build a direct conversion receiver.
It's a really simple one and to be honest now after building so many regen receiver thinking that they are the easiest to build by beginners, I realize I was so wrong. This one has less headaches and more chances of success for a beginner. 73, YO6DXE.
Yay, a DC receiver! One step closer to a superhet.
Try a resistor across the crystal earpiece for a better DC path, start around 5k
Thanks Nigel. I had to cut a little part ... the one when I started looking at the computer as I was talking about you saying ... I finally got away from regens Nigel. But I started laughing badly after that so I had to cut that hahaha. There is the same schematic with two transistors on the AF side for low impedance headphones. It works with 26 Ohms even as it is now but of course the audio is low. But it was a really nice project to play with. I keep looking at schematics for superhet as well. But I will try a few more on DC receivers. Some with the parts I have from you. 73 Nigel. Good luck with your work there. Here... too much work.
That's funny, Chip. Because just the other day i was looking at "offerings to the God of the airwaves" shelf looking at my 4 versions of Sputnik wondering if there will ever be a time they might get a little brother or sister before my soldering iron goes cold forever, and, here it is 😅
@multilecful hahahahaha. This is just the first step. I already have something in my mind but I need to discover some things first 😅😅😅.
Very nice work,dc recevier is quite fun to build and play with the tuning.
Ohh yes. It becomes addictive. 😅😅😅
Wow very nice receiver for it's simplicity. It's definitely made for you 😄. soo let me add my spices on it 😜... You can add 2 diodes in the mixer it's definitely gonna be better , also extra two diode won't kill anybody. 😃. For more stability inductor and crystal should be in aluminum box. That's it anything else will make it complicated.
The oscillator would definitely be better enclosed. I was wondering if using a 4 diores ring mixer would be better. But since I don't know much yet about the DC receivers... I was really into experimenting to see how that works hahaha. Thanks buddy. I need to find a schematic and see how I add the other two. It's easier to understand when I see a schematic 😅.
Very nice project and stable vxo
72 DL1DN
I had lots of fun with this one. Really nice indeed David. And I didn't even used quality parts... just junk box stuff for testing only. 73 buddy, YO6DXE.
Sounds nice mate, hope you are doing well.
It does sounds nice. Honestly I was not expecting it to sound this nice. I really like it, especially because is so simple. Doing good here... just a little tired. I hope you are way better though 😁. 73 my friend.
if i wanted to build for another frequency, say 15m, would the trifilar still be 8 turns?
obviously my other option would be another mixer up front converting 15m down to 7MHz, (or even 10.1MHz because i have a nice xtal if filter at 10.1 on hand), but i like the simplicity to start with
From the original article... the transformer will stay the same no matter what band you build it for. You just have to change the 100pF capacitors from the oscillator circuit. I think the more you go towards 80m the less capacity you need... the more you go towards the 10m band the more capacity you need. I am not sure is just what I remember from playing around with VXO circuits in the past. Everything else will remain the same. Of course... you are using the crystal of choice. I also loved the simplicity and that is the reason I didn't want to "complicate" the circuit trying to improve anything but the VXO. love it just as it is. 73, YO6DXE.
Here is a link to the original article:
www.dl6zb.de/minimal_art_receiver/Minimal%20Art%20Direct%20Conversion%20Receiver%20with%202%20BJT.html
@dxexplorer thanks, I might try with an SI5351
@garethsmith7628 I have a VFO from QRP Guys for one of their digital transceivers and I thought about playing with that one as well )).
Very nice - I'm definitely going to try this! 73 ZS6SHN
Is really nice... and so simple and easy to build. 73, YO6DXE.