I picked up a few old Atwater Kent and am trying to re tube them. I know the 01A has short pins but I would appreciate the differences between the rest of the tubes, as in can a 301 relace a ux201 long pins?

Thanks!
JIM

:I picked up a few old Atwater Kent and am trying to re tube them. I know the 01A has short pins but I would appreciate the differences between the rest of the tubes, as in can a 301 relace a ux201 long pins?
:
:
:Thanks!
:JIM
:Hi Jim
if the pin configuration is the same between the 201 and 301, then the only thing you need to worry about is the clearance between the tube socket and the chassis.
Mark

Hi

Early versions of 01A had different prefixes for manufacturers. UX201A was used by RCA. CX301A by Cunningham. There are many others. All 01A's should be the same electrically.

A tube without an "A" has a 1 amp filament instead of .25 in the later version. A tube with "V" after the first letter has short pins. It requires a special socket which uses the side bayonet pin.. UV201A etc.

Norm

::I picked up a few old Atwater Kent and am trying to re tube them. I know the 01A has short pins but I would appreciate the differences between the rest of the tubes, as in can a 301 relace a ux201 long pins?
::
::
::Thanks!
::JIM
::Hi Jim
:if the pin configuration is the same between the 201 and 301, then the only thing you need to worry about is the clearance between the tube socket and the chassis.
:Mark