I liked to continue to use analog scopes just in case a glitch fell between
the cracks with the digital Tek scopes available at the time. Mostly digital
electronics. I (EE) retired in 1995.
Chuck KE9UW
> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]On
> Behalf Of k7fm
> Sent: Thursday, November 25, 2004 9:15 AM
> To: Amps@contesting.com
> Subject: Re: [Amps] Advice on instruments for ham use
>
>
> Even the old tubed Tek 530-540 series are quite useful, although big and
> bulky. They are now available for the labor of carrying them away. They
> are easy to work on, although frequency limited. Although I have
> many newer
> scopes, I still love to turn on the old classics. Heck, when my friends
> tell me it is either me or the dump, I jump on these suckers.
>
> Regarding digital scopes. I have one. I live near Tek and have
> a number of
> friends who work there. They all use analog scopes and ask why I got a
> digital scope.
>
> The scope I have above my work bench is an old Tek 454A. It may
> be the last
> of the user (somewhat easily) repairable scopes.
>
> Next to my scope is a Tek 2710 spectrum analyzer. That is a joy
> to use. If
> you have a lot of spare change around, buy yourself a nice
> spectrum analyzer
> for Christmas. Things like complicated bandpass filters take seconds to
> tune up. Just twiddle the adjustments on the filter to make the picture
> look like the book and you are set (really that easy). Check harmonics,
> imd, spectral purity, bandwidth, etc. But remember that all spectrum
> analyzers are not equal. You get what you pay for in terms of resolution.
> And do not expect the old Tek 491 to be satisfactory. Research before
> buying and learn about things like tracking generators.
>
> Now go blow that wad of dough you have been hiding under the amp.
> You have
> enough heavy iron - now make it sound good.
>
> Colin K7FM
>
>
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