RE: LF: RF ammeter question

[Rik Strobbe <Rik.Strobbe@fys.kuleuven.be>]

indeed, see http://www.on7yd.strobbe.eu/500khz/ant-bridge/

 

73, Rik  ON7YD

 

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Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] namens Markus Vester [markusvester@aol.com]
Verzonden: dinsdag 11 januari 2011 14:04
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: Re: LF: RF ammeter question

John, the 1N4007 can actually be useful as a varicap replacement to pull an oscillator. 

73, Markus (DF6NM)

-----Ursprüngliche Mitteilung-----
Von: John RABSON <john.rabson@numeo.fr>
An: rsgb_lf_group@blacksheep.org
Verschickt: Di., 11. Jan. 2011, 12:16
Thema: LF: RF ammeter question

LF,

I have built the fullwave rectified version of the design shown on page 10.33 of 
the RSGB Handbook 10th edition.  It reads correctly at 25kHz but only show 1/3 
of the correct value at 136. 

Not having any 1N4148 diodes I used 1N4007s.  Might this be the cause of the 
problem?

73
John F5VLF