[Yaesu] dx 400 DEAF

[wulf at ping.net.au]

Hi Bob,

There are several things that come to my mind including aged capacitor,
frontend alignment, bias and power voltage/current levels etc.

73, Berndt
VK5ABN

> 
> Have recently obtained this in pristine condition .however it is down on sensitivity as compared to drake r4a.   Have replaced valves and few high resistors but no great improvements  any ideas ?  or common faults . BOB g8acq
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