[Boatanchors] NEED TUBE INFO

[David Hollander]

Brian - once again, the 280 rectifier is a 2.5 volt filament tube. It is 
the2.5 volt version of the 80 rectifier. The National 5887 doghouse 
supply uses one to power the FB-7 receiver 2.5 volt tube version. The 
National 5880 doghouse which is for the 2.5 volt version of the SW-3 
also has a 280 in the power supply. The doghouse supplies for the early 
national receivers using 6 volt tubes uses an 80 rectifier.

The Western Electric 280A is a totally different tube.

The 201A, 301A, 01A different manufacturer logic does not apply here.

If by chance, you have a tube tester tests 30's tubes, look at the settings.

Cheers mate!

Dave N7RK
ex-VK2ERK in Sydney for a 2 week vacation

***********************************************************
Dave  N7RK          Boatanchors Home Page: http://members.cox.net/n7rk
Phoenix, Arizona         *DXCC Honor Roll*    *WAZ#22 - 75 Meter SSB*

ex-XE2/N7RK, N7RK/ZB2, VK2ERK, ZM0AJN, WB6NRK, WN6IWX

Boatanchor and Antique Radio Collector