12-03-2011, 09:04 AM
Hi Terry,
I have two different 6A7 tubes, one supposedly new. The filament is at 6.4V They read as follows:
(old tube)
2 - 287V
3 - 96V
4 - 208V
5 - 31.2V
6 - 2.3V
(NOS tube)
2 - 291V
3 - 100V
4 - 188 V
5 - 42V
6 - 2.4V
I soldered the ground strap back onto the tuning cap as described above, and can now get some weak signals on the BC band. Static increases as I climb the dial. The radio is grounded, and I'm using about 10' of antenna.
-Brett
I have two different 6A7 tubes, one supposedly new. The filament is at 6.4V They read as follows:
(old tube)
2 - 287V
3 - 96V
4 - 208V
5 - 31.2V
6 - 2.3V
(NOS tube)
2 - 291V
3 - 100V
4 - 188 V
5 - 42V
6 - 2.4V
I soldered the ground strap back onto the tuning cap as described above, and can now get some weak signals on the BC band. Static increases as I climb the dial. The radio is grounded, and I'm using about 10' of antenna.
-Brett