Carl -
It seems that the L7 manual is not the same as the L-4B manual. The Idling
Plate Current is as follows for the indicated tubes in a DRAKE L-4B:
Tube CW-Tune SSB
Amperex 8802/3-500Z 100ma 160ma
Amperex 8163 100ma 160ma
Eimac 3-400Z 110ma 170ma
Eimac 3-500Z 170ma 260ma
At 05:50 PM 3/30/97 -0700, you wrote:
>At 07:26 PM 3/30/97 EST, you wrote:
>>I received a good memory tweak from AF2C about Amperex tubes in Drake
>>amps. Went down into the dundgeon and read the L-7 manual...the L-4 is
>>similar.
>>
>>In the Maintenence section it lists expected idling currents for the
>>following:
>>
>>TUBE CW SSB
>>Amperex 3-500Z 100ma 160ma
>>Amperex 3-400Z 100ma 160ma
>>Eimac 3-400Z 110ma 170ma
>>Eimac 3-500Z 170ma 220ma
>-----
>My L-4ZB manual lists the idling plate current for the Eimac 3-500Z in SSB
>at 260ma. was there a change in the tube, the manual or the keyboard?
>
>73
>
>
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