Troubleshoot Phillips 483x at converter stage (ech4 tube) (Techniek Radio/TV)

door Goldline @, Oranjedorp, 19.06.2018, 18:08 (2109 dagen geleden) @ Radiosterk

What is the (negative) voltage (AGC) on pin 9 (topcap)?
Is the hephode in cut-off mode, or very low gain ?

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--
Cees PA1DBA


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