Tom,
Only for the 8950 and M-2057 (or Y-2057) as they were the only ones that GE
said were for RF amplifier service. The M-2057 was a custom tube that was
manufactured by GE. They took an 8908's guts and placed them in a 12 pin
compactron base which was what a GE engineer told me. The only specs I have on
the 8908 is in a GE tube applications book. I have the GE application sheets on
the 8950 and M-2057. All the other sweep tubes were based around TV horizontal
output service, however the maximum DC anode voltages still apply. The M-2057
matches several other sweep tubes at 990 Vdc. The 8950 was 800 Vdc. If I
recall, the curves on these didn't drop off from a flat line until around 100
Vdc anode voltage. Above this, the line was pretty flat (gradually increasing)
up to the maximum anode voltage that was shown on the graph. I think you can
download the 8950 PDF from Richardsons along with a few other sweep tubes. The
M-2057 sheet I've had for years. These are the same application s
heets from the 3 ring binder book from GE.
Best,
Will
*********** REPLY SEPARATOR ***********
On 7/7/06 at 5:52 PM Tom W8JI wrote:
>>I just looked at the curves for several sweep tubes
>>including the ones I mentioned, and they didn't start to
>>bend until around 250 Vdc and below. They were flat from
>>there on up in voltage until the maximum permissable anode
>>voltage rating. Running them just at or below the maximum
>>permissable anode voltage would be recommended. Some
>>designers of the past tried to run them at a much greater
>>anode voltage than what the spec sheets say is permissable.
>>I'll try to post the different maximum anode voltages later
>>this evening.
>
>Do you actually have an application sheet for these tubes in
>linear amplifier service Will?
>
>73 Tom
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