Choke for SB-200

[Mark S Graalman]

  28 uH ain't much "L" I'd bet there's nothing wrong with it.

Mark WB8JKR


On Wed, 19 Jan 2000 21:18:34 -0600 Lee Blaske <lblaske at PCLINK.COM>
writes:
>Hi,
>
>I was wondering if anyone knew of a source for the 28 micro henry
>choke that's used in the Heath SB-200 linear amplifier. I'm currently
>restoring one of these amplifiers, and this choke is questionable.
>When I first tested it, it was open, but I discovered that the lead
>on one side was broken. I re-attached what I think is the end of the
>winding, but I question if there might be an internal short. The DC
>resistance of this choke is less than half an ohm. Could this be
>right?
>
>Some time ago, I had checked with Harbach, but offhand, he didn't
>know of a substitute. I see two 27 micro henry chokes listed in the
>Newark Catalog, but I'm not sure if they're big enough from a power
>handling standpoint.
>
>Does anyone have a better idea, or a source for this part?
>
>TIA
>
>73,
>
>Lee Blaske N0IZ
>
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>
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