Re: What is the purpose of Diode D511 ?


Helmut Wabnig
 

On Sat, 21 Mar 2020 12:52:18 -0400, you wrote:

Helmut:

The two diodes D551 and D552 on the PA board are used for the "ATT"
function, which is used to attenuate the incoming VHF signal (the other
option on the preamp select button).
........
Am talking about Diode D511.

The atten is described in the circuit description service manual,
but not D511.

OE8UWW

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