I sent the order in, board house normally takes 3 weeks round tripIf you still haven't got it by the end of the year I'll just cut one
I have the art and code but the machine is tied up for about the next ....
I got a few 2510’s with bad finals and I’m using my Lincoln for reference. A few of the amp builders are repairing HG amps , sounds like something they’d make a video of the insides of oneKeep in mind the picture of the board shown here was designed to replace the MRF477 transistor in HR-2510 style radios. The MRF477 has a pinout of Base, Emitter, Collector rather than the standard Base, Collector, Emitter found with all other finals used in CB's. Using the layout on this board to replace transistors other than the MRF477 will not work.
I just noticed the transistor you show is an HG MRF454. I'm real curious as to how the inside of this transistor looks compared to their 2SC2879... If anyone blows one up, be sure and post the guts please.
What works nicely is a SD1446Been running it through it’s paces. Few things I’ve noticed, compared to an MRF455 the 454 needs more drive. Gonna try a 2290 or 1446.
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At a watt or less the 1446 looks to have more gain then a 455 or a 454
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