Sound Card Receiver Having run my 500kHz grabber for some time using a SoftRock Lite SDR receiver I naturally wished to add 136kHz captures. Unfortunately I was unable to source another SoftRock Lite SDR kit. This would have been useful because I already had the modification details for the 136kHz band. The only way I could do this at the time was to use my JRC NRD-345 receiver, this I did and it was a success. Recently I wanted to use my JRC for other things but it meant that I would have to remove it from the grabber service occasionally. I looked at magazines and the internet etc. for a suitable home brew receiver circuit but unable to find anything that was suitable. Later I was inspired by the soundcard receiver which Stefan DK7FC designed and placed details on the LF e-mail forum . After much thought and several mistakes and updates I finally built a receiver for use in place of my trusty JRC. The result of my efforts you will see on the 136kHz captures regularly uploaded to my MF/LF grabber at :- http://myweb.tiscali.co.uk/wgtaylor/grabber2.html I have published the circuit and photographs of the soundcard receiver below.