David:
If your other rig has an output that will power the tuner lamps, why not
just make a "Y" cable between the 2 radios and the tuner. Put diodes in
series with the legs of the "Y" that run from each radio to isolate
them, so one radio doesn't try to power the other, or worse. That way,
either radio will light the lamps. The voltage drop through the diodes
will not affect lamp brightness much and will actually extend lamp life.
73,
Bob WB2VUF
David Cuttler wrote:
I just acquired a 229A tuner, and I can see that I will have an issue regarding
the panel lights. If I use an RCA plugged cable to my Corsair II everything
will be fine. The panel lights will be on when the Corsair II is on. Here is
where it gets sticky. If I want to use some other hf rigs, It will require
leaving the Corsair II on all the time just to power the panel lights.
I thought about hooking the tuner up to a wall wart, and just leaving it on all the time, but that will shorten the bulb life, and also consume power 24 hours a day at a time when everyone should be conserving power.
I am about to drill two holes next to the RCA socket, and install a modern socket in parrallel to match the common plug used on most of the 12V wall warts, leave the tuner powered up from the wall wart and also install a push button switch to turn the panel lights on when required. I do not have a problem modifying my stuff, because I am not saving it for the next collector.
If someone has a better idea, I am all ears.
David Cuttler – KE6YX
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