QRP Club

QRP Station => Builder's Corner => Topic started by: AK0B on October 23, 2015, 17:34:59 UTC

Title: What is everyone building? Anything exciting?
Post by: AK0B on October 23, 2015, 17:34:59 UTC
I am still playing with Pixie type circuits.  I tried to find a FOXX-3 circuit on the web but wasn't able to.

Been looking at automatic audio output levers and solid state select-o-Jet circuits to add to simple DIY receivers. It has started getting cool here so will not be fun to work on antennas.

So share what you desire or have on the work bench. 

Stan AK0B
Title: Re: What is everyone building? Anything exciting?
Post by: n7eku on October 31, 2015, 15:01:32 UTC
Hi Stan,

Unfortunately, all my stuff is in storage at the moment, but I hope to finish moving and start building again soon.  I do have some pictures of my last work in progress.  I can try to dig them out of my hard drive maybe :-)

For the FOXX-3, have you seen this:  http://www.gqrp.com/The_Sprat_Pixie_File.pdf (http://www.gqrp.com/The_Sprat_Pixie_File.pdf) ?

73,


Mark.
Title: Re: What is everyone building? Anything exciting?
Post by: AK0B on November 02, 2015, 14:22:23 UTC
Thanks Mark, I haven't been able to resolve the circuit on page 15 of the Sprat Pixie collection with the picture of the FOXX3 on the following page.  It appears the osc section is considerable more complex on the PCB. My Sprat CD doesn't have the FOXX3 circuit. Guess its time to get the latest version.

The Sprat collection has a lot of nice circuits in it.  I have built several versions of the Pixies. Almost have one of the Chinese CD4066 Pixie versions (Ebay)  finished.  Amazing what one can do with a CMOS switch.  :)

These simple circuits do a wonderful job on 80 and 40.  Its beginning to feel like Winter here, so will spend more time at the work bench. 

Regards, hope to meet you on the bands some day. 
Stan AK0B





Title: Re: What is everyone building? Anything exciting?
Post by: WH7TT on November 04, 2015, 05:25:07 UTC
Aloha,
   I just finished QRPKITS Scout Regen and it works. I had heard about Regen Receivers and wanted to see how they sounded and worked. It was a very cool and fun kit. I use it to listen to shortwave.
Mahalo,
Edward
Title: Re: What is everyone building? Anything exciting?
Post by: AK0B on November 05, 2015, 07:58:10 UTC
The more you use a  regen the more you will love it  Takes a while to get use to the basic controls but they are fun at any age.  Certainly not just for the younger ham.  Don't over load it only need a short antenna.

Stan AK0B
Title: Re: What is everyone building? Anything exciting?
Post by: WH7TT on November 06, 2015, 04:30:21 UTC
Stan,
    I am finding it is very sensitive nad learning to use the regen control is definitely a talent. It was a very fun build. I think I might try a homebrew version of it next.
Mahalo,
Edward
Title: Re: What is everyone building? Anything exciting?
Post by: ve3lyx on November 06, 2015, 11:46:05 UTC
I am working on a beam power regen based on a traditional ECO circuit. I got the idea after building and using the 42 tube transmitter. Started building after lunch yesterday and had it powered up and running by supper. A couple of times it was working real well. But it is not consistent yet so I have to find the culprit. Cost was zero so no loss whatever the outcome. very simple circuit.
don VE3LYX
Title: Re: What is everyone building? Anything exciting?
Post by: n7eku on November 12, 2015, 02:21:24 UTC
Hi Stan,

KB3VCQ has a very nice high magnification picture of a FOXX-3 PCB on his wordpress site.  As far as I can tell, the oscillator section looks just the same as in the collection schematic.  Looks like they just changed the 3.9 resistor for a trim pot.

Well, half my workshop stuff has arrived, so I need to see what I got and start setting up.  A QSO would be great if you don't mind slow code.

73,

Mark.
Title: Re: What is everyone building? Anything exciting?
Post by: ON5QRP on March 08, 2023, 21:44:38 UTC
Hello  all qrper,s
I have finish my 7 mhz transceiver ( a home brew is never finished...)
Receiver is fantastic and TX is QRPP 1 watt for the moment
Have put a video on youtube.
Francky ON5QRP ( Ex - ON5SE )