10 Jul
2007
10 Jul
'07
2:01 p.m.
On 10 Jul 2007 at 15:58, William Donzelli wrote:
Yup, you're right--same electrically but for heater (884: 6.3v; 885:
2.5v) and basing. The circuit I have shows an 885 driving a 6C6
horizontal amplifier, which in turn drives the horizontal deflection
on a 2501A3 CRT. Strange when you consider that there's a separate
2.5v winding on the transformer for only the 885 heater.
Cheers,
Chuck
There were a
fair number of early scopes that used the 884/885
(aren't they the same? Seems that I recall one labeled 884/885) for
sweep generation, RCA among them.
No, they are not the same tube. The basing is different. 884s are
octal, 885s are UY.