01-21-2019, 06:40 PM
Further testing of the 245 plate voltage is more confusing (I keep checking the 245 because they're expensive and I'm afraid of killing it.) At 60VAC, the plate voltage quickly rises to about 110, then over a few minutes it decreases. After 20 minutes it's down to 70v.
BUT, when I ran it at 115VAC, the plate voltage started at 220v and over time, it increased until I stopped at 400v.
After reviewing all the wiring again, including the speaker and speaker plug connections, the only thing I'm unsure of is my wiring for the antenna coils, RF coils, and the potentiometer. First question is, what kind of RF coils do I have. I've assumed that they're the original flavor--not the later models with Litz wire.
[Image: https://farm5.staticflickr.com/4880/3288...d84f_c.jpg]
Of course, I have no idea what the descriptions mean. With the connections I've made, here are the coil resistances. Does it make sense?
[Image: https://farm8.staticflickr.com/7883/3288...ce72_c.jpg]
One inconsistency is that I disconnected one of the Bakelite caps, and it isn't 50pF as indicated on the schematic. If my cap tester is right, then it's less than 10pF.
BUT, when I ran it at 115VAC, the plate voltage started at 220v and over time, it increased until I stopped at 400v.
After reviewing all the wiring again, including the speaker and speaker plug connections, the only thing I'm unsure of is my wiring for the antenna coils, RF coils, and the potentiometer. First question is, what kind of RF coils do I have. I've assumed that they're the original flavor--not the later models with Litz wire.
[Image: https://farm5.staticflickr.com/4880/3288...d84f_c.jpg]
Of course, I have no idea what the descriptions mean. With the connections I've made, here are the coil resistances. Does it make sense?
[Image: https://farm8.staticflickr.com/7883/3288...ce72_c.jpg]
One inconsistency is that I disconnected one of the Bakelite caps, and it isn't 50pF as indicated on the schematic. If my cap tester is right, then it's less than 10pF.
