05-06-2019, 08:33 AM
Gave it the alignment yesterday. The whole week I was nursing a sore throat and nose cold, and even though it never gets really bad with me (this one is the worst in about 7 years, usually goes in two days with some nasal burning) it kept me from sleeping (I tend not to get drugs for this) and so I was pretty exhausted so I could find it in myself to go to the basement only yesterday.
Before I got to alignment I tried to investigate why my tuning cap is scratchy in the last 1/3 before being fully meshed. I washed it in the beginning of the restoration, dried it; then I tried to see if there are micro-shorts by holding the meter between the plates - no result, no shorts in all three sections whatsoever.
Tried to change tubes in case it is some reaction - no effect; tried to wiggle tubes and wires.....anywho, in the end I realized the scratchy noise only pronounced on BC band at the last 1/2-1/4 of the dial before fully meshed, and on SW scales it is barely noticeable or not there at all.
So I gave up.
The IF was pretty close, it showed up as soon as I applied it to the mixer, though the signal went up quite a bit after I aligned all the trimmers.
BC band alignment is really dependent on the mutual positioning of the WaveMagnet ribbon cable and the WaveRod holding fixture and it affects the 1400kHz positioning. I was able to get pretty close the third time when I realized it and separated the fixture and the wavemagnet ribbon cable.
The SW bands aligned pretty well; all were off, but within the scale, except 19M one which I thought was bad, but then found out it was OK, just couldn't find it.
First it is done with the Waverod; Then the same is done with the Wavemagnet.
The Wavemagnet alignment using the trimmers in it is very.....approximate. Including the fact that some caps do not affect much the alignment they are said to adjusted for, but then affecting the others. Nevertheless it receives just fine.
I think I will put it together now. There is still the desire to change the dial cover which is a bit yellowish, but maybe later. It is not too bad.
The battery has been assembled so I could use it now.
Before I got to alignment I tried to investigate why my tuning cap is scratchy in the last 1/3 before being fully meshed. I washed it in the beginning of the restoration, dried it; then I tried to see if there are micro-shorts by holding the meter between the plates - no result, no shorts in all three sections whatsoever.
Tried to change tubes in case it is some reaction - no effect; tried to wiggle tubes and wires.....anywho, in the end I realized the scratchy noise only pronounced on BC band at the last 1/2-1/4 of the dial before fully meshed, and on SW scales it is barely noticeable or not there at all.
So I gave up.
The IF was pretty close, it showed up as soon as I applied it to the mixer, though the signal went up quite a bit after I aligned all the trimmers.
BC band alignment is really dependent on the mutual positioning of the WaveMagnet ribbon cable and the WaveRod holding fixture and it affects the 1400kHz positioning. I was able to get pretty close the third time when I realized it and separated the fixture and the wavemagnet ribbon cable.
The SW bands aligned pretty well; all were off, but within the scale, except 19M one which I thought was bad, but then found out it was OK, just couldn't find it.
First it is done with the Waverod; Then the same is done with the Wavemagnet.
The Wavemagnet alignment using the trimmers in it is very.....approximate. Including the fact that some caps do not affect much the alignment they are said to adjusted for, but then affecting the others. Nevertheless it receives just fine.
I think I will put it together now. There is still the desire to change the dial cover which is a bit yellowish, but maybe later. It is not too bad.
The battery has been assembled so I could use it now.
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.
