[time-nuts] FRS

EWKehren at aol.com EWKehren at aol.com
Mon Mar 14 01:18:45 UTC 2011


Thank you, yes it is a 2N4091, my fingers are getting bad. I think I am  
going to try a TIP122, I have plenty of TIP31C's,  to much trouble and  money 
for a single 2N4091 when you take into consideration the age of the unit  
and lamp voltage shows 6 volt.
Bert Kehren
 
 
In a message dated 3/13/2011 9:02:21 P.M. Eastern Daylight Time,  
mikes at flatsurface.com writes:

At 07:30  PM 3/13/2011, EWKehren at aol.com wrote...
>On one of my older FRS I  tightened the cover to much blowing in the 
>process
>  the  TIP 31 and the 2N4021. Any idea where to get a 2N4021 or what 
> would  be
>a  substitute.

I think it's a 2n4091, from the parts  list and schematic. 2N4021 is a 
PNP bipolar, 2N4091 is a N-Channel  JFET.

2n4091 is available here:  
http://store.americanmicrosemiconductor.com/2n4091.html

I'd think a  2n4392 would work, Mouser has 'em, along with the  TIP31B.



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