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unknown 10 meter amp with pics

seedkey

Active Member
Aug 22, 2006
178
34
38
Can someone help me identify this linear amplifier my friend bought on Ebay.
I need to try to repair it for him.
the transistors are heady duty it seems SK9642 not much out there on this pill.
I would like to know who built it.
pay no attention to front labels , someone used a label maker
Thanks
 

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looks like a old Boomer Type from the early 90s or so. I'd guess around 400 watts . Doesn't look likes it's AB. But it surely has the Boomer look to it.
 
switchkit it is ab1. it has active bias on transistors.
look at those hybrid combiners. unique design

Boomer hey? well the transistors have 1990 date codes on them.
 
Last edited:
switchkit it is ab1. it has active bias on transistors.
look at those hybrid combiners. unique design

Boomer hey? well the transistors have 1990 date codes on them.
That would be a good question Seedkey ? it may have been cleaned up for SSB use ?
 
Switchkit,
someone on another forum said it was a early 90s TNT AB1 box. he said he used to own one.
Now to find some info.
 
That Box is a Messenger they are nice SSB helpers biased ETC. I had seen it on EBAY aswell almost looks like earl shive hit it with a spray can though :w00t:
 

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