Amazing! You make it look so simple but I know it isn't. Your ability to design radio circuits as you build them is most impressive and inspirational. Thanks and 73, de JS2OLO
Thanks for the nice comments. I have found that it is not always best to follow finished drawings when building a radio. You should often test slightly different values. Preferably with potentiometers before switching the fixed resistors. Or you can try completely new solutions.
Thanks for the projects Heige. Fun to watch. I am supposed to get a SP600jx17 receiver today. From your other videos it seems to me the Germans had more awareness of radio users needs than US in their WW2 radios. I think these videos will provide less fear of using tubes in projects. Ham world has been mostly transistor focused sine the 1970s. I see few home builders of ham gear. Parts are less common at hamfests. Thanks again for the videos. Jerry
Helge, this is a very good video! Your electronics knowledge is super, and the video you put on RUclips is also very good quality! I am wondering if you could build a small voltage multiplier, or some kind of vibrator power supply. This way you could operate from a 12 volt battery. The tube filaments could be powered from the 12 VDC (and a dropping resistor, as needed) and the high voltage for B+ power from a voltage multiplier. In any case, your TX and RX projects are SUPERB! Tks es 73!
Yes, I already made it. Here is the power I used in the video. However, I will also design a small power. I always use 12 volt heating in the projects. www.la6nca.net/homebrew/pow_tube/index.htm
Man this would be cool with a T/R relay and AF amp also in tins! Now I want to build some! For me, to go with the metal/glass aesthetic I'd use some vintage RCA phono plugs (tinned coper and phenolic insulators) and with RG-316 coax
Nice! I wonder why you used the 6AK6 as a detector (small output tube)? Did it perform best? A small slow motion drive on the tuning cap would make tuning easier
I tested several tubes and found the 6AK6 good. Got a sensitivity of 1uV. Heating volts is 12 Volts, so I had to have a resistor in series with the tube. 6AK6 has only 150 mA heating current. Yes, the tuning cap was not optimal. I had too large a frequency range. By reducing this, I could get an easier adjustment of the frequency.
👍Well done Helge. Amazing that you fitted all that into the small tin. I would use a larger box😂. I wonder why the RX stopped when you closed the lid? I wonder if it was capacitance? Some of the components being very close to RF ground with the lid closed? Did the glass fibre panel change the capacitance and fix the problem?
Dette var skikkelig imponerende! Å få plass til at dette er godt gjort. Nå trengs bare en høyspenningsgenerator slik at sender og mottaker kan drives fra et 12V batteri!
I do not speeak german but was able to understand what you said with the comments. MAN YOU ARE CRAZY! having to redo everything when the tubes (valves?) in wrong position blew my mind. please accept Jesus.
Great set Helge!! amazing stability and gain! wow! 73,s PD8533
Beautiful project,good channel,more projects please.
Excellent work and creative thought! Thank you for sharing! From the USA
Thank you.
What a wonder, what a great little receiver. Congratulations on the design.
73 de EA1FLL 😊
I am baffeld .. Helge.. you have out done yourself with this one ... O___O really, really nicely done!
Amazing! You make it look so simple but I know it isn't. Your ability to design radio circuits as you build them is most impressive and inspirational. Thanks and 73, de JS2OLO
Thanks for the nice comments.
I have found that it is not always best to follow finished drawings when building a radio. You should often test slightly different values. Preferably with potentiometers before switching the fixed resistors.
Or you can try completely new solutions.
Helge, fantastic build!! Very well done, I cannot build that small!! And I'm stuck on transistors, so great respect from me Ed KC8SBV
Absolutely wonderful! Love seeing the passion and excitement!
Thanks for the nice comment.
Nice work Helge! Works great.
You are Master of tube radio, transmitters and receivers, so this place is You Tube are a new meaning! 73
Thanks, I hadn't thought of that. Funny.
Those are just lovely. Seriously...
Thanks for the projects Heige. Fun to watch. I am supposed to get a SP600jx17 receiver today. From your other videos it seems to me the Germans had more awareness of radio users needs than US in their WW2 radios. I think these videos will provide less fear of using tubes in projects. Ham world has been mostly transistor focused sine the 1970s. I see few home builders of ham gear. Parts are less common at hamfests. Thanks again for the videos. Jerry
Yes you are right. The Germans had a great focus on making user-friendly radios. Both use and service.
With the nicely colored components it is like a candy box!
Extremely interesting and exciting to operate homebrew 1.5W transmitter and receiver and all with tubes. 2 thumbs up!.... VA7VB
Helge, this is a very good video! Your electronics knowledge is super, and the video you put on RUclips is also very good quality!
I am wondering if you could build a small voltage multiplier, or some kind of vibrator power supply. This way you could operate from a 12 volt battery. The tube filaments could be powered from the 12 VDC (and a dropping resistor, as needed) and the high voltage for B+ power from a voltage multiplier. In any case, your TX and RX projects are SUPERB! Tks es 73!
Yes, I already made it.
Here is the power I used in the video.
However, I will also design a small power.
I always use 12 volt heating in the projects.
www.la6nca.net/homebrew/pow_tube/index.htm
Great work! the 6ak6 can be used as a transmitter too, just add crystal and tank circuit. Full transceiver
Thank you for your comment.
Yes, I have already made the prototype of a tranceiver.
Hoping to get it in the same type of box.
@@LA6NCA RF amp can be reflexed as AF amp. 6AK6 becomes transmitter.
Very nice! Truly inspiring project. Thank you for sharing. 73 from Germany.
Thank you.
Nice project. Enjoyed, Thanks for sharing...
GE es GM Helge nice schematic prezentantion also the constraction inside small box...tks for posts 73
Man this would be cool with a T/R relay and AF amp also in tins!
Now I want to build some! For me, to go with the metal/glass aesthetic I'd use some vintage RCA phono plugs (tinned coper and phenolic insulators) and with RG-316 coax
So nice that you are inspired by my videos.
73
cute little box!
Great inspiration to find ham radio hobby basis, thank you
Thanks.
Это великолепно 👍. Ничто не сближает тебя с эфиром так хорошо, как вакуумные трубки. 👍 Браво , маэстро. ✌️
Good video, very interesting 👍👍
Nice! I wonder why you used the 6AK6 as a detector (small output tube)? Did it perform best? A small slow motion drive on the tuning cap would make tuning easier
I tested several tubes and found the 6AK6 good.
Got a sensitivity of 1uV.
Heating volts is 12 Volts, so I had to have a resistor in series with the tube. 6AK6 has only 150 mA heating current.
Yes, the tuning cap was not optimal.
I had too large a frequency range.
By reducing this, I could get an easier adjustment of the frequency.
👍Well done Helge. Amazing that you fitted all that into the small tin. I would use a larger box😂. I wonder why the RX stopped when you closed the lid? I wonder if it was capacitance? Some of the components being very close to RF ground with the lid closed? Did the glass fibre panel change the capacitance and fix the problem?
Thank you.
When I closed the lid the coils changed their value.
To prevent this, I removed the metal above the coils.
Dette var skikkelig imponerende! Å få plass til at dette er godt gjort.
Nå trengs bare en høyspenningsgenerator slik at sender og mottaker kan drives fra et 12V batteri!
Yes, I already made it.
Here is the power I used in the video.
However, I will also design a small power.
www.la6nca.net/homebrew/pow_tube/index.htm
awesome skill
Hi, why a 10pF capacitor between grid and cathode of Audio Detector 6AK6? thanks
"Its job is to take up additional charge originating from the Miller capacitance."
-Some online resources.
where did you get all the altoid boxes?
I have received boxes of equipment from a dead radio amateur.
They were among these.
How to find such, I am not sure.
Now build a trancyver, Multyband in one bigger box!
😁
Thank you for your comment.
Yes, I have already made the prototype of a transceiver.
Hoping to get it in the same type of box.
Awsome Helge the best from LB1NH 🙂
I do not speeak german but was able to understand what you said with the comments. MAN YOU ARE CRAZY! having to redo everything when the tubes (valves?) in wrong position blew my mind. please accept Jesus.
👍👍👍👍👍
Kewl.
great project, 73 de FO4MM !