11-29-2018, 07:53 PM
Traw-John?
I was thinking more like "Nathan-Ohm" since this was Nathan's idea.
Anyway...problems.
[Image: http://philcoradio.com/images/phorum/6T2/6T2_059.jpg]
Yesterday evening before the full effect of the chemo hit, I finished wiring up the 6T2, connected a speaker and an antenna, and brought it up slowly with a Variac.
No releases of magic smoke...no explosions...but also, no sound!
I had a hum at the grid cap of the 6F5. And when placing a finger on the grid cap of the 6A7, I can tune in stations - which tells me something is wrong with the antenna coil assembly since this occurs on all three bands.
In addition:
* The plates of the tuning condenser start rubbing from 650 kc and below.
* The replacement 50K tone control causes the set to squeal when turned toward the bass end...so I am going to need that original 100K control after all.
I'll start trying to sort all of this out in a few, or several, days.
Again, the service manual containing the schematic is here (warning - large file - 32.1 MB) in case anyone wants to look it over and offer any suggestions regarding the antenna coil, tone control, and tuning condenser.
I was thinking more like "Nathan-Ohm" since this was Nathan's idea.
Anyway...problems.
[Image: http://philcoradio.com/images/phorum/6T2/6T2_059.jpg]
Yesterday evening before the full effect of the chemo hit, I finished wiring up the 6T2, connected a speaker and an antenna, and brought it up slowly with a Variac.
No releases of magic smoke...no explosions...but also, no sound!
I had a hum at the grid cap of the 6F5. And when placing a finger on the grid cap of the 6A7, I can tune in stations - which tells me something is wrong with the antenna coil assembly since this occurs on all three bands.
In addition:
* The plates of the tuning condenser start rubbing from 650 kc and below.
* The replacement 50K tone control causes the set to squeal when turned toward the bass end...so I am going to need that original 100K control after all.
I'll start trying to sort all of this out in a few, or several, days.
Again, the service manual containing the schematic is here (warning - large file - 32.1 MB) in case anyone wants to look it over and offer any suggestions regarding the antenna coil, tone control, and tuning condenser.
--
Ron Ramirez
Ferdinand IN