Re: TV set O-Scope

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "robert heidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-desertgate-dot-com>

Terry : Thanka for your responce, but you dont understand. I have two duo
trace 250 Mhz scopes I am in nead of a low frequency scope fold back long
trace scope not a high speed scope. Dumont once made scopes that would start
at 1/2 Hz. Even that at times is to fast, but now no one makes a very slow
speed scope. I nead to display sub-sonic wave forms and a TV with sweep
coils is ideal for that type of display These modern high speed scopes are a
waste of time in displaing events with long times beteen events, but a
lengthy display of that event. Trigger start will display the event, but not
the long time between events. That is what I nead to see.

> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Wed, 04 Sep 2002 12:28:25 -0600
> To: tesla-at-pupman-dot-com
> Subject: Re: TV set O-Scope
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Wed, 4 Sep 2002 12:36:18 -0600
> 
> Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>
> 
> Hi Robert,
> 
> I remember them and I looked at many.  The conversion was expensive and
> "rough".  The result was very poor by any standard.  If you want a nice
> scope cheap, just go to ebay.  I think the going average price is less than
> $50 there.  Even the like new super scopes are hardly over $500.  Some
> perfectly good older simple scopes are at only $10.00 (shipping will cost
> more than the scope).  Try to get one with probes since a nice probe will
> probably cost more than the scope ;-))  It is not worth considering
> anything else unless you want a "project".  Scopes these days are
> practically free if you look around.  We have $10000 scopes we bought only
> a few years ago that we use as monitor stands now...
> 
> Little scopes like this are a dime a dozen...
> 
> http://cgi.ebay-dot-com/ws/eBayISAPI.dll?ViewItem&item=1762693703
> 
> If you want a project.  Get a nice broken on like this for $1 and see if
> you can fix it:
> 
> http://cgi.ebay-dot-com/ws/eBayISAPI.dll?ViewItem&item=1763482814
> 
> http://cgi.ebay-dot-com/ws/eBayISAPI.dll?ViewItem&item=1762338399
> 
> Most of the time they just didn't know how to work it and it really does
> work fine. (intensity turned down, normal mode without a trigger signal,
> level turn up so trace is off screen...)  E-bay often has manuals and parts
> too!
> 
> It must kill people who have a scope they paid $5000 for that goes for $20
> on E-bay :o)))
> 
> Cheers,
> 
> Terry
> 
> 
> At 09:27 AM 9/4/2002 -0600, you wrote:
>> Years  past electronis pubs had tv set conversion plans to make a low
>> frequency folded sweet o-scope. I would like to convert a tv or computer
>> monitor into a low frequency scope for TC use. Dose any one on the list have
>> a set of plans I could obtain?
>> Thank you,   Robert  H
>> 
> 
>