[sdiy] Are these any good?

[Oren Leavitt]

I've used the 2N2920 as an expo converter for synth circuits in the past 
with excellent results. Some of the older National Semiconductor app 
notes, AN-31 for example, used the 2N2920 in a log converter circuit 
before the LM394 came along.

Oren

Heitor Alves wrote:

> uhmmm are they good for subst of matched pair in synths?
> 
> thanks :)
> 
> Heitor
> 
> 
> On Thu,  3 Feb 2005 20:11:43 -0700, The Peasant <ecircuit at telus.net> wrote:
> 
>>The 2N2920 is used as input differential pair in some PS Audio amplifiers, so I
>>would expect it to be of reasonable quality.
>>
>>Take care,
>>Doug
>>______________________
>>The Electronic Peasant
>>
>>www.electronicpeasant.com
>>
>>
>>Quoting Heitor Alves <heitor.alves at gmail.com>:
>>
>>
>>>Are theses Dual transistors any good?
>>>
>>>2N2920 and 2N2060
>>>
>>>lets ear it :)
>>>
>>>Heitor
>>>
>>
>>
>