Roger G3XBM's (Mainly) Amateur Radio Blog

Simple QRP projects, 10m, 8m, 6m, 4m, FT8, 160m, WSPR, LF/MF, sub-9kHz, nanowaves and other random stuff, some not related to amateur radio.

Showing posts with label mosfet. Show all posts

Showing posts with label mosfet. Show all posts

16 Apr 2018

A high sensitivity MOSFET crystal set

Firstly, I should say I have not built this, but it looks interesting. See http://www.arrl.org/files/file/Technology/tis/info/pdf/culter....

10 May 2010

VLF up-converters and MOSFETs

Today I built a MOSFET up-converter, converting 7-9kHz VLF to around 20MHz. However, I was disappointed with the results: low conversion gai...

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Roger G3XBM: Burwell, Cambridge, United Kingdom

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