LF: Re: Balun for tuned loop antenna

["Julian Hardstone" <julian@rosestone.me.uk>]

Daniele - I see from the schematic 
http://radio-timetraveller.blogspot.com/2009/08/tecsun-pl-600-review-and-schematics.html that the 
MF-HF input to the PL-600 is a LPF followed by a balanced mixer
Also, I believe that the PL-600 is similar to the earlier -1103 sets, so maybe the same 'easter-egg 
trick' works for the -600 and you did not have to use a soldering iron to connect an MF antenna..?
If the LPF is the same as the -1103, C88 will be 82p, C96 7p, C97 68p, so maybe 
Zin is 75ohm

> > >
I managed to enable (by means of the soldering iron :-)) the external antenna jack also for MF and 
LF on PL-600 (normally it only works in HF)...<<<