Another quality VK3YE video. Thank you for the 7Mhz QRP. Thank you also for the LM386 notes. Very valuable. Will be referring to them again. 73, from VK2.
I absolutely love Pixies. I started studying them a few years ago and ended up making a schematic for a "megapixie" with everyone's mods in, like sidetone, additional tempering of broadcast stations, and more power out etc. I guess you could also have a clock generator in there and take out the crystal, and have a selectable series of LPFs. They're a great circuit to start learning some things, even though they have their issues. Especially because the Rx is right there also - plenty of tutorials have you make Txes but not a lot show you how to make transceivers
YESSSS!!!! Last night my 3.8Mhz direct conversion mess of a receiver was receiving AM. When I turn the preamp too high it goes medium wave. :). I'm starting to think a simple discrete component AF amp might be easier? Thanks for this video.
Another good video Peter very instructive I know from experience about instability in the LM386 especially when trying to use it in a QRP am TX. Thanks for information best 73 G0STE
I put my Pixie on 5.262 MHz. Heard by a SWL in Utrecht at 220 miles when having a QSO at 180 miles. Don't forget valves. A BT61 out of a non working oscilloscope and I'm on 5.262 MHz and 7.030 MHz. I'll make a regen rx to go with it to keep things simple. G4GHB.
👍Appreciate the tips, thanks Peter. Like the "choppo-board" proto-board idea. Good way of testing circuits without soldering or using breadboard which might give problems at RF.
Very nice circuit and useful tips, thanks for sharing. I built a similar circuit a couple of years ago, also inspired on g3xbm uu80 micro-transciever. Was able to get about half a watt out of it with only a bc338 powered by a 9V batt. Minimalistic qrp design is so interesting! Best regards
Another quality VK3YE video. Thank you for the 7Mhz QRP. Thank you also for the LM386 notes. Very valuable. Will be referring to them again. 73, from VK2.
I absolutely love Pixies. I started studying them a few years ago and ended up making a schematic for a "megapixie" with everyone's mods in, like sidetone, additional tempering of broadcast stations, and more power out etc. I guess you could also have a clock generator in there and take out the crystal, and have a selectable series of LPFs.
They're a great circuit to start learning some things, even though they have their issues. Especially because the Rx is right there also - plenty of tutorials have you make Txes but not a lot show you how to make transceivers
I put my Pixie on 5.262 MHz. Best dx so far180 miles and a SWL report at 220 miles in Utrecht. 350 mW out.
G4GHB.
YESSSS!!!! Last night my 3.8Mhz direct conversion mess of a receiver was receiving AM. When I turn the preamp too high it goes medium wave. :). I'm starting to think a simple discrete component AF amp might be easier? Thanks for this video.
Another good video Peter very instructive I know from experience about instability in the LM386 especially when trying to use it in a QRP am TX. Thanks for information best 73 G0STE
I put my Pixie on 5.262 MHz. Heard by a SWL in Utrecht at 220 miles when having a QSO at 180 miles.
Don't forget valves. A BT61 out of a non working oscilloscope and I'm on 5.262 MHz and 7.030 MHz. I'll make a regen rx to go with it to keep things simple.
G4GHB.
👍Appreciate the tips, thanks Peter. Like the "choppo-board" proto-board idea. Good way of testing circuits without soldering or using breadboard which might give problems at RF.
Very nice circuit and useful tips, thanks for sharing. I built a similar circuit a couple of years ago, also inspired on g3xbm uu80 micro-transciever. Was able to get about half a watt out of it with only a bc338 powered by a 9V batt. Minimalistic qrp design is so interesting! Best regards
Thank you very much for this full explication Sir..
Always nice to see that having fun with amateur radio isn't always a thing what cost you multiple k$ - vy 73 de DL8CY