05-13-2014, 08:17 PM
well, I got this Halson chassis from Kirk Saturday. Yesterday, Monday it sang.
Pull the local station pretty well.
Did not do much - Kirk recaped it, so I simply checked the coils etc, checked the electrolytics (to the possible exent, not gonna open the can again).
Kirk did good recapping, I only replaced the line filter cap with Y-cap.
Radio sang with shield off. With shield on it played quietly, which is no wonder as the antenna wire was not there.
The volume pot is a bit scratchy...the pot is not easily disassembled. And it is a repacement pot.
There s one weak tube, 57.
The lineup is 57-58-47 and 80 rectifier (AC set).
I found Halson 515 which is, though having some other tubes, is very similar and so I used it as a reference for power and output hookup which are very much same.
Now, eventually when it pulled in station, I started looking for alignment....well, guess what. It got no pods.
It is, as it sees, a TRF.
57 and 58 first implied there might be a det-osc and so it would be a superhet, but no - it is a TRF and with no pods at that.
I can see bent outer leaves on the tuning cap, I guess this is the alignment.
Well, I am not going to disturb it.
Done.
Kirk, you will need a good antenna with it, it is not an overly senitive set.
And if possible you could try a good 57 tube.
Pull the local station pretty well.
Did not do much - Kirk recaped it, so I simply checked the coils etc, checked the electrolytics (to the possible exent, not gonna open the can again).
Kirk did good recapping, I only replaced the line filter cap with Y-cap.
Radio sang with shield off. With shield on it played quietly, which is no wonder as the antenna wire was not there.
The volume pot is a bit scratchy...the pot is not easily disassembled. And it is a repacement pot.
There s one weak tube, 57.
The lineup is 57-58-47 and 80 rectifier (AC set).
I found Halson 515 which is, though having some other tubes, is very similar and so I used it as a reference for power and output hookup which are very much same.
Now, eventually when it pulled in station, I started looking for alignment....well, guess what. It got no pods.
It is, as it sees, a TRF.
57 and 58 first implied there might be a det-osc and so it would be a superhet, but no - it is a TRF and with no pods at that.
I can see bent outer leaves on the tuning cap, I guess this is the alignment.
Well, I am not going to disturb it.
Done.
Kirk, you will need a good antenna with it, it is not an overly senitive set.
And if possible you could try a good 57 tube.
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