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Re: Need Hitachi k149 and j49 replacements [message #8001 is a reply to message #8000]

Wed, 16 April 2008 15:05

Wayne Parham
Messages: 18789
Registered: January 2001

Illuminati (33rd Degree)

I would contact Hitachi and get data sheets for the two transistors. You should be able to find compatible parts, maybe ones that exceed the original specs. Match Hfe, match or exceed Vceo and Vcbo and match or exceed Ic and Pt.

I would replace both channels with matched pairs. If you can't find matched pairs, you may have to buy a small lot and measure them yourself for matching purposes.

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[Message index]

		Need Hitachi k149 and j49 replacements By: Mr Vinyl on Tue, 15 April 2008 17:17
		Re: Need Hitachi k149 and j49 replacements By: Wayne Parham on Wed, 16 April 2008 15:05
		Thanks Wayne. Much appreciated. NT By: Mr Vinyl on Thu, 17 April 2008 08:31

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