[Elecraft] OT: obsolete IC source

Thu May 6 09:12:00 EDT 2004

Hello Andy,
    I ran into a similar problem with obsolete ICs for an active capacitive filter I
was building for a speed control circuit in a 30KW diesel generator. I found
Rochester Electronics at 10 Malcolm Hoyt Drive in Newburyport, MA. They advertise
themselves as the "Leaders on the Trailing Edge of Technology".  They buy up obsolete
stocks and then re sell them at a hefty profit. You may have some luck finding what
you need from them. They have a minimum charge. I had to buy 5 ICs to get the single
one I needed. (If anyone needs to rig up an overspeed shutdown circuit for their 30
KW diesel generator, do I have a deal for you!!!)

73
Dave K1WHS

Andy Bullington wrote:

>  I'm at my wits end. I'm trying to homebrew a box that will bring all the
> audio in my station together in one switchable unit. Its going to have an
> audio amp and front facing speaker for the K2 and something called "the
> continuously variable audio filter" from last years Handbook for the older
> receivers in my shack. I've wanted to build this filter for a long time but
> come to find out the Maxim MAX295 chip which is the heart of the filter is
> no longer available from the usual sources. Any ideas? Thanks.
>                  Andy W1AWB
>
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