11-09-2014, 09:23 PM
I t ' s A l i v e . . . .
[Image: http://www.philcoradio.com/images/phorum...e00026.jpg]
Tonight after supper, I found six tubes to install in the radio, as mentioned in my previous post, and fired it up. Within seconds, I could hear my SSTRAN coming in loud and clear!
[Image: http://www.philcoradio.com/images/phorum...e00027.jpg]
I'm using the speaker from my 42-720 temporarily as a test speaker. Volume is good and tone sounds good as well; this set should sound very good once it is back in the cabinet.
I still need to install a 5 pF capacitor, part (10A) on the 41-722 schematic. I found some on eBay and bought a small quantity so as not to have to spend a lot of $$$ on a big order. But the radio is working on AM, anyway, without it.
I'll give the set a complete alignment, and try out the SW bands, tomorrow.
We're not totally out of the woods yet on this one, though. Besides the missing 5 pF mica cap, the tuning control feels very rough. It is a dual shaft control and appears to be a ball bearing unit; when turning either the inner or outer shaft, it feels like the bearings have badly worn and are more like rough pebbles. I hope that is not the case; I am hoping that a disassembly, thorough cleaning, and new grease will take care of the issue. We shall see.
[Image: http://www.philcoradio.com/images/phorum...e00026.jpg]
Tonight after supper, I found six tubes to install in the radio, as mentioned in my previous post, and fired it up. Within seconds, I could hear my SSTRAN coming in loud and clear!
[Image: http://www.philcoradio.com/images/phorum...e00027.jpg]
I'm using the speaker from my 42-720 temporarily as a test speaker. Volume is good and tone sounds good as well; this set should sound very good once it is back in the cabinet.
I still need to install a 5 pF capacitor, part (10A) on the 41-722 schematic. I found some on eBay and bought a small quantity so as not to have to spend a lot of $$$ on a big order. But the radio is working on AM, anyway, without it.
I'll give the set a complete alignment, and try out the SW bands, tomorrow.
We're not totally out of the woods yet on this one, though. Besides the missing 5 pF mica cap, the tuning control feels very rough. It is a dual shaft control and appears to be a ball bearing unit; when turning either the inner or outer shaft, it feels like the bearings have badly worn and are more like rough pebbles. I hope that is not the case; I am hoping that a disassembly, thorough cleaning, and new grease will take care of the issue. We shall see.
--
Ron Ramirez
Ferdinand IN
