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Old September 15th 08, 12:58 AM posted to rec.radio.amateur.boatanchors
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Default 4H4-c ballast tube specs.



From "The Ballast Tube Handbook" by A. P. Jacobi

4H4C, use 110/1-20V sets, 4.5-8.5V, 440-470mA,
Element connected to pins 2 and 7.
No alternate type listed.





Thanks for the information

Paul P.
 
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