In a message dated 2006/07/10 , lcochrane@.............. writes:

> There's another problem I forgot to write about. One of the parts, a 
> digital 
> band-pass filter made by Maxim, is no longer available. When I get some time 
> I will 
> place the schematic of the board on my website but since one of the ICs 
> can't be 
> purchased anymore it won't be too useful.

Hi Larry,

       Thanks. That would be great!

       Maxim produced a new bandpass filter a while back, so I suspect that 
there is a replacement. One of the groups monitoring the ionosphere with VLF 
radio use it.

       Regards,

       Chris Chapman
In a me=
ssage dated 2006/07/10 , lcochrane@.............. writes:



There's another problem I forgo=
t to write about. One of the parts, a digital 

band-pass filter made by Maxim, is no longer available. When I get some time=
 I will 

place the schematic of the board on my website but since one of the ICs can'=
t be 

purchased anymore it won't be too useful.




Hi Larry,



       Thanks. That would be great!



       Maxim produced a new bandpass filter a=20=
while back, so I suspect that there is a replacement. One of the groups moni=
toring the ionosphere with VLF radio use it.



       Regards,



       Chris Chapman