Posts: 227
Threads: 60
Joined: Sep 2012
City: Kokomo, Indiana
Posts: 1,113
Threads: 14
Joined: Feb 2013
City: Irvington, NY
What sort of audio source did you use to test it?
That's a high impedance speaker designed to operate directly from the plate of the output tube, so if you connected to the usual radio output transformer, the audio will be very low.
Posts: 227
Threads: 60
Joined: Sep 2012
City: Kokomo, Indiana
I plugged it into my 1925 Liberty Five TRF. Five 01A tubes. With my Brandes Table Talker speaker it has good volume. When I attached the AK-H, it was very low. The 9v battery test yielded similar results between the two speakers.
Posts: 227
Threads: 60
Joined: Sep 2012
City: Kokomo, Indiana
Haven't been able to unscrew the driver yet, stuck tight even after a WD 40 application and letting it sit for a few days. I had been testing it out again on the Liberty Five and it seems about twice as loud as it was when I first got it home. Still quite a bit lower volume than my Brandes Table Talker, but at least listenable now. I can only guess that by running voltage thru it for a while the magnet must have been re-magnetized somewhat.
Posts: 2,353
Threads: 92
Joined: May 2010
City: Clayton, NC
Careful with that! For some reason many of the AK speakers that I have come in ctc with have this problem.
Recommend you take your time, it is easy to ruin the threads on the horn.
