[sdiy] First ICs (was Top Ten ICs)

[Oren Leavitt]

I think my first IC (after the 'Space-Age Integrated Circuit' on my 100 
in 1 kit) was an LM709 in a Science Fair P-Box "IC AM Radio" kit bought 
at Radio Shack for a hard earned $5.95.

At that time I also did my first and only repair of an IC.
I somehow managed to blow the '2SC' transistor in the 'IC' on my 
100-in-1 kit. So I scrapped it off and carefully soldered another NPN 
silicon transistor (pulled from an old AM car radio) in its place.
I remember the distinct sweet smell that the epoxy coating on the 'IC' 
gave off while I was soldering the new transistor to it.

It worked great after the repair!
The 'RF Amplifier Radio' (project #67) worked even better than before 
with the new transistor - I was thrilled!

Oren

Oakley Sound wrote:
> My first IC I ever bought was a 741. I tried to build an amplifier with
> it from a single supply and drive an 8 ohm loudspeaker... mmm, and so
> the learning curve begins.
> 
> And the odd thing, some would say sad, is that after 25 years I still
> have that 741. And it still works. :-)
> 
> Regards,
> 
> Tony Allgood                           www.oakleysound.com
> 
> Oakley Modular Synthesisers      Penrith, Cumbria, England
> 
>