re-SB-230 mods

[Dennis Ka9Dzr]

to let all out there found out some mods on the 230 amp mod abt changing the
tube out from the 8873 to the following.8874 or 8875. the only other thing is
have to remove the fins off back of the amp to put a blower.i think the 8874
has to have the air moved from bottom of the tube.the 8875 can have the air
moved across the tube.got htis infr from w8cq jeff from3865 give him a call u
could get more infr.  dennis

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