> <<Another way to get the power output down from the Ranger, is to replace the > 6146 with a 2E26. Everything is the same, except for half the dissapation. > Then, don't load the final stage as heavy.>> > > Just a curious question here... Why bother replacing the 6146 with a 2E26 if > everything besides the plate dissipation is the same? Why not just load it > lighter? There shouldn't be any difference the way I see it. Comments?
With a 6146, you can only un-load the final 'so far', while maintaining the proper grid drive required (2.5mA, if I recall correctly). While 'normal' load conditions on a single 6146 are somewhere in the area of 110mA, 50mA (or thereabouts) is about typical for the 2E26. While you can unload the final down to about 75mA on the 6146, I would presume that 15 to 20mA would be easy to accomplish with a 2E26. 700VDC @20mA is around 14w DC Input. I don't believe you can unload a single 6146 to anything less than around 75mA. I don't have a Ranger here (anymore), so I can't give specifics... I can't remember back that far ;-) 73 = Best Regards, -=Geoff/W5OMR=-
