Re: UNUSUAL CRT Instruments?
Don Black <donald_black@...>
Thanks for the link to the nice photos Tom, It would have been nice if there was a shot of the anode face to see the score marks from the beam.toggle quoted messageShow quoted text
Are you sure it's rotated by a 60 Hz supply? I was under the impression that they spun up to 10,000 RPM which would need a much higher frequency. Of course, we could both be right and some just rotate at about 1800 RPM and some much higher.
The two filaments aren't to provide a spare when the first burns out (as in the double filament Audios, etc.) they are different size and position and allow different X-ray beam characteristics.
On 06-Sep-13 1:24 PM, Tom Miller wrote: