03-21-2015, 05:45 PM
Well I am excited! I am tuning in stations!!!
I pulled out the oscillator coil and rewound the tickler with all your great advice. I put in back in the radio and finished wiring it up this afternoon. I brought it back up on a variac, and yes, I can turn in stations on the upper part of the AM band.
I actually had a dream about it last night in which I was showing a friend the radio and turned it on for the first time and stations came in. My dream came true !
The shadow meter even seems to be working.
As I tune down the band, it starts to cut out at about 1100. I was sure that it must be the oscillator dropping out, but I put my oscilloscope on pin 4 of the 36 tube and watched the oscillator signal. It seems to tune nicely across the entire band. It doesn't seem to be dropping out at all.
I have my cathode resistor at 8200 ohms. All bakelite blocks have been replaced, and I have pretty much checked most of the resistors.
I am wondering if I can impose upon all of you to tell me what I might try next. What should my strategy be?
Thanks!!!
Mark K8KZ
I pulled out the oscillator coil and rewound the tickler with all your great advice. I put in back in the radio and finished wiring it up this afternoon. I brought it back up on a variac, and yes, I can turn in stations on the upper part of the AM band.
I actually had a dream about it last night in which I was showing a friend the radio and turned it on for the first time and stations came in. My dream came true !
The shadow meter even seems to be working.
As I tune down the band, it starts to cut out at about 1100. I was sure that it must be the oscillator dropping out, but I put my oscilloscope on pin 4 of the 36 tube and watched the oscillator signal. It seems to tune nicely across the entire band. It doesn't seem to be dropping out at all.
I have my cathode resistor at 8200 ohms. All bakelite blocks have been replaced, and I have pretty much checked most of the resistors.
I am wondering if I can impose upon all of you to tell me what I might try next. What should my strategy be?
Thanks!!!
Mark K8KZ