AW: reciprocal frequency counter

[Bill Layer]

>Date: Mon, 05 Oct 1998 14:53:06 -0500
>To: Haible Juergen <Juergen.Haible at nbgm.siemens.de>
>From: Bill Layer <b.layer at vikingelectronics.com>
>Subject: Re: AW: reciprocal frequency counter
>In-Reply-To:
<1BF5E20E0C4DD111BBAB00805FE2D582C12BEB at nbgm336a.nbgm.siemens.de>
>
>Hi Juergen,
>
>>Anybody found an O'Scope small enough (and unexpensive) to fit
>>into a Modular ?
>
>Yes and no. In the late 1950's the James Millen co, of Malden Mass.
produced a 1" instrumentation oscilloscope, which would fit perfectly in
one of the wider (3-5") PAiA frakRak panels. Millen also produced a 2U
rack-mount version of a slightly bigger scope.
>
>This being said, they are quite hard to find. At the time they were made,
the 1" scope was nearly $250.00 US. 
>
>One good alternative is the RCA WO series, such as the WO-33, WO-33A or
WO-33B. These are small (3.5") o-scopes, that were frequently built as part
of RCA's electronics training course. The stock chassis is the size of a
small toaster, but the 'guts' could easily be pulled and remounted on a
rack-panel. I've owned two of these scopes for years, and they are SUPER
for basic audio work. The bandwidth is about 75Khz, so forget about digital
stuff. Still, they can be had for 10-30 dollars at a hamfest.
>
>I've used mine as a lissajous tuner, feeding a reference into one channel,
and my VCO output into another.
>
>
Bill Layer
Sales Technician
<b.layer at vikingelectronics.com>

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