12-31-2016, 10:09 PM
Update: from what I saw I thought the IF alignment could be way off, as after replacement of the Be6 tube that is very weak things did not improve.
So I alugned it roughly, without digital readout from my oscillator, just setting it to 455kHz. I first tried to peak out what the radio was aligned to and it was waaaaay of, and all these guys were 455kHz, so I aligned it, and what do you know, the radio now is receiving fine across the dial with me touching the antenna.
It is not supersensitive, and what could one expect from an AA5 4-tuber with the IF amp tossed out.
But it does almost as well as my tabletops with me touching the antenna.
There's still the issue of the hum. While not heard during reception it is quite noticeable while between stations.
But without the sch I might let it alone.
So I alugned it roughly, without digital readout from my oscillator, just setting it to 455kHz. I first tried to peak out what the radio was aligned to and it was waaaaay of, and all these guys were 455kHz, so I aligned it, and what do you know, the radio now is receiving fine across the dial with me touching the antenna.
It is not supersensitive, and what could one expect from an AA5 4-tuber with the IF amp tossed out.
But it does almost as well as my tabletops with me touching the antenna.
There's still the issue of the hum. While not heard during reception it is quite noticeable while between stations.
But without the sch I might let it alone.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
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