Scott K1OA FB SolderSmoke Direct Conversion Receiver

Scott K1OA has been a licensed ham for more than 50 years, but he tells us that this was his first Manhattan-style project.  He reports having built a lot of kits and even a DC receiver from EMRFD using an SA602 chip, but he says the SolderSmoke direct conversion receiver was the most fun.  That comment meant a lot to us.  We continue to believe there is value in homebrewing from scratch. 

Scott writes:  

Hi Bill,

This will be my 50th year as a licensed ham and my first

Manhattan style project. I've built a dozen kits in the past

15 years or so and bread-boarded a simple crystal 

controlled DCR from a circuit in EMRFD

using an SA602, but the Soldersmoke DCR

challenge has been the most fun!

The most challenging aspect has been trying to get the

PTO tuning range close to 7-7.3 MHz. I'm still 

experimenting with that.Audio output is loud and 

sensitivity is pretty good.

I'm thinking my next project might be a simple crystal 

controlled CW transmitter to pair up with the DCR, and 

considering the Pebble Crusher 1/2W design from the 

ARRL Handbook that uses a pair of 2N2222A

transistors. I'm interested in your thoughts on that.

Thanks for putting forth the challenge and for all the 

great support you and Dean have provided!

73,

Scott K1OA

p.s. - love the podcast and your Soldersmoke Adventures 

book!

Thanks Scott and congratulations. 

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For more information on how you too can build the receiver: 

Join the discussion - SolderSmoke Discord Server:

https://discord.gg/Fu6B7yGxx2

 

Documentation on Hackaday:

https://hackaday.io/project/190327-high-schoolers-build-a-radio-receiver

 

SolderSmoke YouTube channel:

https://www.youtube.com/@soldersmoke