[R-390] 3TF7 resistor replacement

Bruce MacLellan brumac at juno.com
Sun Nov 14 18:55:38 EST 2004


Charlie,
        I had a ballast fail on me last night.    I  replaced it with two
51 ohm  resistors in parallel inserted into #2 and #7 socket positions,  
Use 2 watt or better.     A bit of shrink tubing on the leads will keep
them away from the socket shield mount.      If you don't have carbon you
can get MOV s in 3 and 5 watt values from Mouser.     It works well for
me.

Bruce


On Sun, 14 Nov 2004 21:52:12 +0000 Charles B <ka4prf at us-it.net> writes:
> Can some one give me the specifics on how to replace the 
> 3tf7 Ballast tube with a 42 OHM resistor?  I am wondering 
> where the resistor leads are placed in the tube pin holds 
> etc.  Any help would be appreciated.
> 
> Chuck
> 
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