[TechAssist] EARTH Sound Research Mixer Amp
- From: "Gary Pahls" <bec@xxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 25 Jul 2003 07:35:03 -0500
Does anyone have any information on a mixer amp made by a company called Earth
Sound Research. On the back of the unit it says POWER SYSTEM EARTH Sound
Research, ISC Audio Inc. MODULE 340. It was made in Farmingdale NY. I am
needing information on the output transistors. The part number on them is
59-4004-B, below that number is 7641, they are TO-3 case and appear to be NPN
silicon. I can't find any information on these and my educated guesses have
not faired well either. Thanks in advance.
Gary Pahls
Beloit Entertainment Center
Beloit, KS
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