10-30-2019, 06:42 PM
The moment of truth.
I attached the speaker from my RCA T7-5 only because I was too lazy to detach the T8-14's speaker from its cabinet. (No, I have not yet completed the T7-5. The cabinet needs to be rubbed down, I need to decide which of a few patterns of grille cloth I have here to put into it, and it needs a new dial cover.)
I plugged the T8-14 into my Variac, plugged the Variac into the power strip. Turned on both radio and Variac. Slowly brought up the voltage on the Variac...
and once I reached 110 volts AC...
[Video: https://youtu.be/4sKl5bM2R5M]
It's Alive!
The video shows me tuning the AM band (Band A), the 49 and 60 meter portions of Band B, and part of Band C so it is a much longer video than I normally post (about 5-1/2 minutes).
The radio badly needs an alignment. One of the first stations I picked up was WJR, Detroit. The trouble is, WJR broadcasts on 760 kc and the T8-14 is receiving it at 63 on the dial. In the video, you will notice that the volume of stations increases considerably above 1000 kc.
Well...probably Friday late afternoon/evening sometime Saturday, I'll do the alignment. This will be my first real trial of my "new" B+K-Precision 4040 signal generator. In preparation for this, tomorrow night I'll wind the coupling coil suggested by John Bartley in my signal generator thread.
Edit: Well, I had better get that new dial scale cut out, drilled, and installed before I attempt an alignment! So the actual alignment may not happen until Saturday.
I attached the speaker from my RCA T7-5 only because I was too lazy to detach the T8-14's speaker from its cabinet. (No, I have not yet completed the T7-5. The cabinet needs to be rubbed down, I need to decide which of a few patterns of grille cloth I have here to put into it, and it needs a new dial cover.)
I plugged the T8-14 into my Variac, plugged the Variac into the power strip. Turned on both radio and Variac. Slowly brought up the voltage on the Variac...
and once I reached 110 volts AC...
[Video: https://youtu.be/4sKl5bM2R5M]
It's Alive!
The video shows me tuning the AM band (Band A), the 49 and 60 meter portions of Band B, and part of Band C so it is a much longer video than I normally post (about 5-1/2 minutes).
The radio badly needs an alignment. One of the first stations I picked up was WJR, Detroit. The trouble is, WJR broadcasts on 760 kc and the T8-14 is receiving it at 63 on the dial. In the video, you will notice that the volume of stations increases considerably above 1000 kc.
Well...probably Friday late afternoon/evening sometime Saturday, I'll do the alignment. This will be my first real trial of my "new" B+K-Precision 4040 signal generator. In preparation for this, tomorrow night I'll wind the coupling coil suggested by John Bartley in my signal generator thread.
Edit: Well, I had better get that new dial scale cut out, drilled, and installed before I attempt an alignment! So the actual alignment may not happen until Saturday.
--
Ron Ramirez
Ferdinand IN
