Need Calibration/User manual for IO-4510 scope

[Peter A Markavage]

Be advised that W7FG sold the manual business to Vintage Manuals Inc.
(Indiana)  around October 2005. He still does all the antenna products.

Pete, wa2cwa

On Wed, 19 Dec 2007 09:35:17 -0500 "Charles W. Morehouse"
<w4gbw at BELLSOUTH.NET> writes:
> Alex,
> Have restored lots of Heathkits.  A good rule with scopes is to 
> replace 
> all the resistors and caps in the HV circuit.  Then you can start to 
> fix 
> the other problems.
> As for the manual, have always had excellent results with W7FG 
> Vintage 
> Manuals.  He has that one for $29.  His copies are very good.  Luck 
> and 73.
> wayne
> W4GBW
> 
> Alex [Temple-Heath List] wrote:
> 
> > Greetings.
> >
> > Just acquired a IO-4510 which I'm now in the process of cleaning 
> up 
> > and restoring. After slowly raising the AC voltage with the variac 
> 
> > over the course of about two hours, I got to the point where I 
> > realized that although I do get a single trace I have no control 
> over 
> > it other then the horizontal position, which almost manages to get 
> the 
> > trace centered on screen even though its fully clockwise. None of 
> the 
> > vertical position controls seem to work. Also, the focus control 
> has 
> > to be set fully clockwise too in order to get the best possible 
> > sharpness of the trace, so I'm guessing there might be a couple of 
> 
> > resistors off value in the focus divider. The previous owner only 
> 
> > provided me with the assembly manual, but I'm missing the 
> > calibration/user manual which I will obviously need to calibrate 
> the 
> > unit once I get it fully operational.
> >
> > Does anyone have a download source for this manual? I've checked 
> the 
> > usual places but no luck so far. If downloading it is not 
> possible, 
> > who would be a trusted source to buy the manual from?
> >
> > BTW, if anyone has any restoration/upgrade tips on this particular 
> 
> > model scope, they would also be very welcomed.
> >
> > Thanks.
> > -Alex
> >
> 
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Products bought, sold or traded here is the responsibility of the
parties involved.  This list and the City of Tempe are not responsible
for losses or misrepresentations of any kind.  Buyer beware!

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