[TenTec] 1340 QRP Transceiver - 12V Polarity?

[Shawn Upton]

One of the first things I did with my 1340 was apply power backwards.  Oops.  All the IC's got replaced, and on the advice of TenTec, the final too.  I don't think anything else was damaged.

After that I put a series diode in.  The minor power loss was less of a deal than the fear of doing that again.

Shawn
kb1ckt


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On Mon, Mar 12, 2012 11:33 AM EDT W8KZW wrote:

>Can someone tell me the power supply polarity for this rig?  I purchased a
>used one yesterday.  Polarity is not indicated on the rear panel nor could I
>readily find mention of it in the manual.
>
>In my haste to fire it up I applied positive 12V to the center terminal of
>the connector and heard nothing .... dead.  I have a sneaking suspicion I
>guessed wrong.
>
>If I toasted it, has anyone ever done the same and assembled a laundry list
>of what to repair / replace?  Can someone tell me where supply polarity is
>referenced in the manual?
>
>I hate it when I rush.
>
>73,
>Jeff
>W8KZW
>
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