Roy, even though no inrush protection is called for, it can't hurt
anything.
Over a 35 year period of using an 8877 on 2m EME I have lost two tubes;
both had an open heater. I have to believe a surge limiter might have saved
one if not both of these tubes.
73,
Gerald K5GW
In a message dated 1/14/2010 7:37:32 P.M. Central Standard Time,
royanjoy@ncn.net writes:
FYI all,
RFP part #F-41X for $9.95 each, is rated 26.5 volts @ 2 amps with 120 VAC
on
primary. I purchased two and connected primaries in series with
secondaries
in parallel. My 247 VAC line yields 26.96 volts for the pair with a 4 amp
resistor load. I'm planning to convert my Titan-2 to a GU-84B. Any
thoughts
on whether or not an in-rush circuit needs to be used with this indirectly
heated cathode tube? I read somewhere that the original 4CX1600B specs did
not call for any in-rush protection. Thanks.
73, Roy K6XK
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