[Elecraft] QRP version of KR5L's CW zero beat detector

[Sverre Holm - LA3ZA]

I used standard electrolytic capacitors (polarized). The values you
refer to, 10 and 22 uF, are for the original KR5L circuit. In my low
power version they have been divided by about 8 and are 1 and 3.3 uF.
The values in either circuit are not that critical, especially not the
output filter value (22 or 3.3 uF).


73 Sverre

> -----Original Message-----
> From: John McClain [mailto:digi2@earthlink.net] 
> 
> I have been trying to collect the parts for the Sidetone 
> Zerobeat Detector circuit and I am having a problem finding 
> the 10ufd and 22ufd Tantalum Capacitors.  The schematic 
> indicates that they are non-polarized.  I can find polarized 
> Tantalums but not non-polarized Tantalums.  What have the 
> rest of you who have built the circuit used?
> 
> John
> K7SVV