Видео

@@JAlmeida50 good work. Thanks for your feedback. Please keep us posted about your findings. My best wishes to you.

@@EddyMiller thanks for your message. Well, anywhere from $10 in a hamfest to whatever the buyer is willing to pay. Depends on the condition.

@@et_kokemus thanks for your message. My best wishes to you in your projects.

@@JAlmeida50 Thanks for your feedback. I'm glad your TV is now working well. No, I didn't venture into finding the details of those TVS diodes. My TV has been working well since that last repairs without those TVS. I guess any TVS with a max reverse operating Voltage of 100V (to be on the safe side) should do.

@@PremMenon Thanks again.I will try to find one that fits it.Regards

@@Dessa280810 Yes, it's possible - and easy. Use the I-cc button for that, and use the rotary knob to set the current. Save it in any memory for recall. Procedure is also in the manual. Good luck!

Hi Mike! Thanks for the info/feedback. That's awesome! I guess the power o/p is not consistent with these boards. I have 2 boards, and both behave differently. 73.

@@scotfinch6912 Scott, thanks for your feedback. I'm glad it worked out well for you. There are many similar low budget mics out there, and I do own many although I haven't made any videos on those.

@@kk0dj if you can rephrase your question with context, perhaps I'll be able to answer.

Hello Karl! Thanks for your feedback. Unfortunately, the answer (from what I know) is a no. It won't/can't detect your CB capacity. Also, as explained (from practical bench-test), at 120VAC, it limits the Current to about 11.1A.

Thank you for your message. Frankly, I've forgotten the proportions I used. It's been long... It's in the video. Besides, for my later projects I was able to get usable ready to use reed-wax at a decent price, so....

Ravi, there's some tradeoff between both in terms of air/effort needed to play. However, from my experience - having tried the top end valved to this new design valve-less, the difference is not much. Matter of fact, valve-less harmonicas are easier to maintain and no issues with temperature and humidity. The experts may disagree, but to each his own. In short, go for the valve-less new version. My best wishes to you.

Please see my response to your question in the other video.

Thanks for your message. For the wood I used regular carpenter's glue from home Depot. It's holding up well. The reason for the rotting was water seepage...which is now taken care of. Good luck with your renovation project.

Yes, that is correct....but that was for my rig. Since these rigs are sold by many vendors, it's better you measure the pin pitch and type of connector used on your rig. That said, connector is not an issue for me. When needed, I just replace with whatever I have at hand. Good luck!

@@PremMenon Thanks. I did end up measuring the pin pitch (2.0mm) and it looks like for my rig I will need the PH2.0mm connector if the vendor of the radio doesn't come up with the missing battery. How is the battery secured inside the case? Double-sided tape?

@@barbaracornwell3041 To be honest, I've forgotten as it's been a while now. I do have a video showing the internals. It's one of 4-5 videos I made on that SDR. Check that out, please.

Hi Mike! Thanks for your feedback. That 684 is a classic - although I've never seen one. Yes, give it a shot. God bless you too.

I had it, but it's been a while.... You can ask the vendor. They normally send it.

@@PremMenon yeah ive been waiting for awhile for a reply, i had some pads pull up from the CAT port trying to find other points to connect it to

@@ColinMurrayNZ Oh! That's too bad. If you Google you should find it. I don't want to make promises I may not be able to keep. I've moved ahead to (many) other projects therefore can't guarantee the schematic availability. Besides, each vendor has something different - although the same concept.

Thanks for your feedback. You are probably right on. After this I received a few better ones, but I guess - not 200kg, but definitely more stronger/rugged.

Yes. It has to be manually switched. Thanks for your feedback.

Thanks for the useful feedback. I'll re-do with a better wood soon. That was just an experiment....still holding.

Thanks for stopping by.

Whatever Voltage you set is in fact constant. It'll reduce only when you exceed the set current - as in a short-circuit.

@@PremMenon I have a halogen lamp rated at 12V 60W if i set 12V 5A on the PSU voltage drops to like 11V and CC light is showing.

@@Dragunov1111 Set the current limit to 8A. It should work. Then find out the actual current drawn by your bulb. Keep in mind that such bulbs may draw higher initial current....and may draw more than the 5A "calculated" current.

@@PremMenon Ok now i get it so if i dial in 10V 5A it will go in CV mode as the voltage isnt dropping... Will try it later when i finish my coffie.

Hello Heiner, thanks for your message. Essentially, the Rx port of Radioberry goes to the antenna directly although there's an antenna change over relay in-between.... because I'm using the NC contact of that relay for Rx (the usual practice). I didn't feel the need for any filtering for Rx frontend. Rx is as good (better, in fact) as most commercial rigs I own. 73.

@@PremMenon Guess, I will also do without any filtering as my antennas are small bandwidth and thus prevent overloading. Will probably only use the rx part for the time being. Congrats on that fine gorgeous looking vfo in the sturdy metal case Prem!!!

@@heinerrambold8889 Thank you, Heiner! My best wishes to you. It's just like straight into a doubly-balanced diode-ring mixer front end - as used in many homebrew rigs and some commercial rigs as well. Overloading should not be a concern. I keep the RF gain at around 5 or 6....and reduce as needed. I'm happy you checked out my ESP32 VFO I made for my army man-pack.

Thanks for your message 👍

Thanks for your feedback. Yes, it can be customized to users' preference.

Thanks for your encouraging words.

Thanks for your feedback. Yes, doable.

@@PremMenon Keep the great videos coming 👍

@@KA4UPW Will do, Jim. Thanks and 73!

Thanks Ramesh.

Thanks for your feedback.

Thank you for your feedback, sir. Yes, now all the heatsinks are in place - including a fan - in the final phase. I've pinned the link to that video. Every day I'm having QSOs using this Radioberry. I have 2 boards. Both are different. Thanks for the suggestion on the digital modes. I'll give it a shot. 73.

Thanks for your feedback. I'll try your suggested method.

I have two Radioberry cards. One gives an o/p of 20dBm, and the second gives about 17dBm.

20 dbm? Where did I get the 2.5 mw from? Thanks

Thanks for your feedback. Yes, give it a shot. My guitar had no monetary value after all these years. Just sentimental value. Had purchased it ages ago - new - when I was still struggling in life, so..... I'm happy with the repair outcome, and it's playable again....sounds good too.

Thanks for your feedback. No, nothing planned. I've moved on to other projects.

Okay. That's nice. Thanks for your message.

My best wishes to you. It's a bit frustrating initially....to get it going. You'll then have to build the other things to make it transmit. Check out my video which shows this TRX in action (if interested). GL & 73.

Thanks for your message. Sorry I missed touching on that "vocal off" feature. As you correctly said, I'm skeptical about that feature. I did test it though... Just like any other run-of-the mill product offering that feature - it is not good. It cuts off the required frequency spectrum....and the track sounds horrible - to say the least.

@@PremMenon Thank you very much for your honest opinion on that.

You may want to try removing the defective TVS diodes.

Do you know where these diods are located? The resistors I use is a 100ohm 0.25w.

@@lyamc4445 next to the resistor. It's in my video.

If you mean the diod D005 I have already removed all of them

The watt on the the resistors that I have used is only 0.25w, do you think that could be the problem ?

Hello Arash, thanks for your message. Mine is the old one. Started the project in Oct/Nov 2023....so, same image. Regarding the 12V relays, it's not an issue. 12V is a common connection to all the LPF relays and the required relay pairs are grouped (negatives are wired together). The required band relays' negative gets grounded by the controller thus selecting the band.

Thanks for your message. Yes, if you have a donor IC-725, output stage is taken care of. Even I went in circles for a while, and then succeeded. I'm sure you will figure it out too. GL and 73.

QSL. 73.