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Title: EF Johnson Viking Navigator info needed Post by: kb9r on December 29, 2015, 09:03:59 PM Hello friends,
Anyone have an ASSEMBLY manual for the Viking Navigator? I need a pictoral of the meter switch. I have a schematic, but need to identify the pin-out on the switch. It is a unique switch and I think mine might be wired wrong. Thanks for any help you can give me, Joe - KB9R Title: Re: EF Johnson Viking Navigator info needed Post by: WA5VGO on December 30, 2015, 05:55:39 PM I had one but got rid of it many years ago, so I no longer have the manual. But I recall it being nothing but a DPDT slide switch wired to look at the grid or plate of the 6146.
I will offer some unsolicited advice, and offer it in the strongest of terms. Get that meter out of the plate circuit and move it to the cathode. The reason most of the Navigators have replacement meters is the meter switch breaks down and passes full DC through the meter. Why Johnson did the metering the way they did baffles me. Title: Re: EF Johnson Viking Navigator info needed Post by: N8ETQ on December 30, 2015, 07:36:53 PM I agree with moving it to the Kath.. But that meter was a REAL POS... Back to back diodes will save it but you probably don't want it anyway... I think that's the reason all those meters were swapped out. They needed just a little "Damping". Same with the "Challenger". GL /Dan |