Dual FET Buffers (was: Re: [sdiy] Kraakdoos line out)

[René Schmitz]

Hi Scott, Ian and all,

>> >Scott Gravenhorst wrote:
>> >> The two FETs and two resistor method - is this the one Don Tillman
>> >> posted a while back?
>> >
>> >I don't know, but I think Ian meant the circuit in the attachment.
>>
>> Excellent, thanks.  I've not seen that before.  What sort of range would
>> the resistors' values be?  Should they both be the same value?  Megs?
>> 100s of K?
> 
> 
> 
> I usually use 1k, but I think something a bit larger is also OK  (1k - 
> 4.7k).

They should have the same values, or else you get an offset. (Or the 
other way round: by makeing one slightly adjustable you can influence 
the offset.) In the extreme you can leave them out altogether (0 Ohm).

Cheers,
  René

-- 
uzs159 at uni-bonn.de
http://www.uni-bonn.de/~uzs159