HG 2879 die/ flange

[Crusher]

i figured I’d post this for informational purposes. The die or flange on these new DEI, HG and RFP 2879’s is larger than the old Toshiba flange. If you have to replace Toshiba with newer version, you will have to pull board and use a dremel to make transistor opening larger. I’ve had a lot here lately that I’ve had to replace transistors where someone else replaced previously. They had to be replaced because they weren’t seated right, too much thermal grease that couldn’t escape around edges. They were in so tight I had to rock them back and forth with needle nose pliers to pull out. Add to the fact the holes weren’t countersunk correctly and it spells disaster for the new devices. In fairly short time.

 

[nomadradio]

Had to take a carbide cutter on the Dremel and enlarge the openings in an amplifier a while back. Didn't stop to ask why the HGs had such a tight fit. The blown Toshibas that came out were a tight fit to start with.

73

 

[Captain Kilowatt]

Perhaps that was their answer to better heat transfer from an inferior device; to made the surface contact area a bit larger. Pretty shitty thing in any event.

 

[Shockwave]

That means it does not conform to the specifications for the 211-11 case. In that case, what case do they claim it's in?

 

[Crusher]

I guess the flange spec is like the center pin on the QC connectors. Close enough? Lol.

 

[DoctorAudio]

I've always thought is was a dumb idea for Davemade/X-Force/Fatboy/Etc. to cut the flange hole in the PC board so close to the flange size. Even a 1/16th of an inch larger wouldn't have hurt anything and would have made installing/replacing transistors a lot easier. We also wouldn't need to have this conversation about the slightly larger flange on HG's.