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Old 26th Nov 2019, 9:41 pm   #1
Steve G4WCS
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Join Date: Sep 2004
Location: Preston, Lancashire, UK.
Posts: 632
Default Cybernet PTBM121D4X modification ?

Refitting a pair of dc switching transistors and noted that the track from IC3 pin9 to T4 appears to have been deliberately cut. I wonder if it was in an attempt to make the power output across the bands less peaky as T4 contains a tuned circuit, and it has had a pll track cut at one time to take it onto 10M. Anyone come across this . No mention in the export service manual that its a factory mod ?
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