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Kam Houff
Posted on Monday, July 30, 2001 - 10:02 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

What is the transistor in the KL-40?
I fried mine (forgot to pull my output back and Qsoed till it smoked). Allready replaced other things on the board but dont know what the transistor is. Thanx < Kamriddock
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Jerry Bryant
Posted on Saturday, August 04, 2001 - 1:42 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I've heard that the KL-40 transistor is a RM-3 FET.That's the model I recall from memory.J.C.B.
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707
Posted on Sunday, August 05, 2001 - 1:17 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

mine currently has a RM3 FET (Roasted Metallic 3 prong Fried Electronic Thing)
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snuffy
Posted on Wednesday, August 15, 2001 - 3:31 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

yes 307 or tech 181 i have a dead
kl-40 can you tell me what the ecg
replacement is for the trans or fet
and can i get them.thank you
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Jerry Bryant
Posted on Sunday, September 02, 2001 - 5:18 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Are there other transistors that will work in the place of the RM3? I have a burnt up one too and would like to give the answer to my local technician so that he can repair fried ones. He looked it up with his partner and they found a possible match with a transistor called a 125. They made a comment on the KL-40 and said it looks just like the old mosquito amp that used to use a 2SC1969.Please help because we're still in the dark?????????
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Tech181 (Tech181)
Posted on Monday, September 03, 2001 - 12:48 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Jerry,

Copper has the transistors in stock for the KL-40. They are $7.50 each. The 2SC1969 is only an 18 watt final, and the KL40 finals are hotter than that.

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Jerry Bryant
Posted on Saturday, September 08, 2001 - 9:28 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Are there any transistors out there for modifying the KL-40 for more watts?
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bruce
Posted on Sunday, September 09, 2001 - 8:52 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

how would you heat sink the power? short of putting a fan on the thing

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