Al Kossow wrote:
> " Didn't
> one
> of the tubes use a deflection angle other than 90 degrees?"
>
> I beleive the Ampliphone has an angle < 90 deg
> Someone else will have to do the inductance measurements
> on that yoke, since I didn't have one to measure.
>
> "And
> isn't there a good reason for NOT using 90 degree tubes"
>
> I suspect any tube you will be able to buy at resonable
> prices in 1999 will have deflection angles greater than
> 90 deg, and will have a smaller diameter neck as well.
>
> Greater deflection angles will increase problems with
> linearity and power required of the deflection amps
> also.
The linearity problems can be beat.
See http://www.wintrontech.com/pics/yokecrt.jpg for an
example. Plus stuff like pincushion can be adjusted with
magnets,
but I don't know exactly how that works.
Received on Wed Oct 20 13:46:17 1999
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