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Message-ID: <004201cbcdd6$a9dc3eb0$4001a8c0@lark>
From: "Alan Melia" <alan.melia@btinternet.com>
To: <rsgb_lf_group@blacksheep.org>
References: <AANLkTine7u4sKEcNgPxr2q7Bs=4HhMg8D5HaQ-Vp4Q7D@mail.gmail.com> <4D5B4C77.1010804@hifidelity.com>
Date: Wed, 16 Feb 2011 12:40:06 -0000
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Subject: Re: LF: 40 years (completely OT, but...)
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Ah but if you could make 'em work you learned a lot about op-amp
layout.....and to put a 47ohm in the output line :-)) My first ST-5 RTTY TU!

Alan G3NYK

----- Original Message ----- 
From: "Steve Dove" <dsp@hifidelity.com>
To: <rsgb_lf_group@blacksheep.org>
Sent: Wednesday, February 16, 2011 4:03 AM
Subject: Re: LF: 40 years (completely OT, but...)


> My first uA709 (first real commercial op-amp, circa 1968) cost me five
> quid.  Which was a LOT of newspapers.
>
> Unstable, noisy.  And, with its unprotected output stage didn't last
> very long . . .
>
>          73        Steve
>
> On 2/15/2011 7:19 PM, Andy Talbot wrote:
> > 40 Years ago today decimal money was introduced to the UK  It was half
>