Search found 277 matches
- Mon Sep 11, 2023 3:15 pm
- Forum: General Discussion
- Topic: A nice and simple regen receiver
- Replies: 3
- Views: 28181
Re: A nice and simple regen receiver
And here's another interesting circuit https://antiqueradios.com/forums/viewtopic.php?t=373629 it's a superhet based on the classic NE602, but with a difference, the LO is a regen stage based on the LM386 (yes, not kidding) SW Superhet with Regen IF.png that "hack" allows to improve the pe...
- Mon Sep 11, 2023 3:05 pm
- Forum: General Discussion
- Topic: The Belka (-DSP/-DX/-v3) appreciation thread
- Replies: 34
- Views: 101115
Re: The Belka (-DSP/-DX/-v3) appreciation thread
Late on this (have been on holidays :D) but I think that those folks are comparing apples and oranges and they just "shoot" stuff w/o even understanding what they're talking about; just consider that the Belka is a "self contained" unit, while a standard SDR needs a computer, let...
- Tue Sep 05, 2023 9:15 pm
- Forum: Questions & Advice
- Topic: Balun One Nine: cutting R1
- Replies: 14
- Views: 40215
Re: Balun One Nine: cutting R1
that one is the V2, no need to scrape anything it does not have the center tap even if the PCB shows it
- Tue Sep 05, 2023 4:16 pm
- Forum: Questions & Advice
- Topic: Balun One Nine: cutting R1
- Replies: 14
- Views: 40215
Re: Balun One Nine: cutting R1
notice that the V1 has the central tap, while the V2 doesn't so with the V2 there's nothing to cut
- Tue Sep 05, 2023 12:00 pm
- Forum: Questions & Advice
- Topic: Balun One Nine: cutting R1
- Replies: 14
- Views: 40215
Re: Balun One Nine: cutting R1
Thank you, Egil. I guess I should clarify my question: How do I physically cut the resistor? Score across it with a knife? see here https://swling.com/blog/wp-content/uploads/2021/08/balun_back.jpeg you just use a cutting blade to cut the circuit trace, then use a multimeter to check if the two sid...
- Fri Aug 25, 2023 10:11 am
- Forum: General Discussion
- Topic: A nice and simple regen receiver
- Replies: 3
- Views: 28181
A nice and simple regen receiver
If someone here likes fiddling with a soldering iron, here's the schematic for a regen https://www.aa5tb.com/regen.html https://www.aa5tb.com/regen2.gif I'm posting it just since I like how well it's designed while being simple, let me start from the input stage, the common gate JFET does multiple d...
- Sat Aug 19, 2023 3:33 pm
- Forum: General Discussion
- Topic: simplest antenna
- Replies: 0
- Views: 40660
simplest antenna
do you have some length of old coax sitting in a corner ? Do you need a "cheap and dirty" antenna to use at whatever location ... even to transmit ? Well, read on :D Pick your coax, be it RG58, RG59, RG6 or whatever. as long as you know its characteristic impedance, say 50.or 75 Ohm, now ....
- Wed Aug 16, 2023 11:28 am
- Forum: General Discussion
- Topic: SW Station In Russia?
- Replies: 4
- Views: 18498
Re: SW Station In Russia?
hmm... not sure, but are you referring to this ? https://swling.com/blog/tag/radio-sahka/ That one is what im referring to. what im wondering is why the station was reactivated and for just such a short time? I wonder if it may be similar to what reported about "Radio Vostok Rossii" here ...
- Wed Aug 16, 2023 5:05 am
- Forum: General Discussion
- Topic: SW Station In Russia?
- Replies: 4
- Views: 18498
Re: SW Station In Russia?
hmm... not sure, but are you referring to this ?
https://swling.com/blog/tag/radio-sahka/
or to Radio Rossii ?
https://www.google.com/amp/s/www.bbc.co ... 683656.amp
https://swling.com/blog/tag/radio-sahka/
or to Radio Rossii ?
https://www.google.com/amp/s/www.bbc.co ... 683656.amp
- Mon Jul 31, 2023 8:27 am
- Forum: General Discussion
- Topic: The Belka (-DSP/-DX/-v3) appreciation thread
- Replies: 34
- Views: 101115
Re: The Belka (-DSP/-DX/-v3) appreciation thread
There were no thunderstorms announced,I couldn't see or hear any lightning (in the radio) but apparently the air was full of surplus electrons or something, causing static buildup on the whip, which then got shunted to my finger, then to the roof metal (or everything vice versa, not a physicist). 1...