Three transistor JS8 receiver for 3.5 MHz

[@MIKROWAVE1]

Very Nice Peter! Simple does it! I did a W1AW code practice receiver for QST mag. back in 98 using this idea, but it was a regenerative detector around the crystal because there was no need for that kind of JS8 stability. Excellent video work.

[@edwinklaver]

Good Job Peter, these are the kind of videos I like, you go into great detail. I've learned quite a lot from you over the years. Thanks for that.

[@Cptnbond]

Hi Peter, thanks for another awesome video. I really like the simplicity.

[@vk2ig]

5:10 and 6:30 - you have bugs in this circuit! :-) Could you add a 90 degree phase shifter at the oscillator buffer output, another mixer fed from the antenna, a polyphase network to phase-shift the resulting audio by 90 degrees, an audio summer to produce USB only? Merry Xmas Peter, and thanks for the video.

[@larrybarnette4795]

Flea powered?

[@miquel9898]

i made reciever very similar to PIXIE but i used super vxo so i could tune it in mater of tens of kilohertz both ways and with frequency of 3.6MHz it was amazing bandwidth was really wide when i inspected it with PC soundcard 48KHz

[@indrajitR]

Simple circuits which WORKS ! Is a great incentive to make something. 73 de vu3inj

[@dannonight]

Thanks, Peter. I'm in the process of building a Beach 40. I wonder if it would be possible modify the Beach 40 to work on 80m and to include the JS8 transceiver circuitry end up with a Beach 80 with JS8 capability? Just an idea.

[@vk3ye]

Dan - both should be possible but have not yet done it.

[@acestudioscouk-Ace-G0ACE]

Nice and interesting video ... but you seriously need a tripod of fixed camera support. All that jerky movement made me feel quite sick!

[@BabylonLurker]

If you want some selectivity, using a few more 3.579545 crystals in a ladder filter should do nicely. This idea is, of course lifted from the"Warbler" PSK transceiver (by K1SWL, I think). Vy 73 de Jan, OZ9QV.

[@BabylonLurker]

That would do nicely, if you want to use it as a TX, too.

[@vk3ye]

A good idea. Depends on where the centre frequency is. If it's unsuitable you might be able to do something with ceramic resonators.

[@BabylonLurker]

@@vk3ye True enough.

[@BabylonLurker]

@@vk3ye I might try the idea for FT8 propagation monitoring, so simple DCRX (DSB)

[@researchandbuild1751]

Neat project

[@IvanPassos]

Excellent

[@YamazakiKaoru]

Hi! I want to build this receiver and would like to know if using germanium diodes instead of 1N4148 can increase performance. Thanks!

[@vk3ye]

Not in this circuit. Stay with silicon.

[@YamazakiKaoru]

@@vk3ye Thanks.

[@INFO_SELABX]

I want to use small toroid tr37.. Can i

[@user-if4bt2su2f]

Очень интересная схема приёмника.

[@phitrow]

I think need HF amplifier.

[@therianet]

Interesting variety of diode ring mixer, most circuits I find for diode mixer use multiple tapped transformers but this one is simplified, do you know the name of this type ? Does it perform as well ?

[@vk3ye]

Henry - I do not know the name of the mixer or whether it performs as well. It may only be single balanced rather than double balanced.

[@user-dh1kq3eh8q]

Bravo majstore vi 73 Y u 1 qg

[@wamgoc3637]

Superhet is superior.

[@user-qg4gq9sr2q]

Quartz ntsc