[TenTec] Centurion QSK board Mod

[Joerg Vollbrecht]

Hi Art,

I use an Orion II and a Delta II with a Centurion. I'd recommend that 
mod, which can be done within less than 5 minutes.
Happy holidays!

73
Joe, DL4CF

atrampler at att.net wrote:
> I purchased a Centurion that was being used with an Orion.  The previous owner had made the mod recommended by Ten-Tec:  
>
> "Note for older 422 Centurion amp owners: Using an older Centurion with the newest Ten-Tec HF transceivers - Pegasus, Jupiter, and Orion - may require a small modification to the QSK board in older Centurion amps for proper QSK CW keying. Short diode D2 (red diode, 1N4148, next to Q1) with a jumper wire. The current 422B does not require this modification."
>
> I have an Omni VI.  Should I undo that modification, or is it benign?  Could it be the cause of the buzzing I detect at the relay?
>
> Any thoughts are appreciated.
>
> Art, KØRO
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