03-03-2019, 09:31 PM
Okay guys...I actually had a NOS #42 Output tube in my stock. I found it after I ordered another one 
. Voltages read the same when the 42 is inserted. Strangely enough, when I read the voltages with the 42 out of the equation, my voltages actually seem to be too high. Here is what I get with the 42 pulled...Is this normal?
#44 (RF) Plate=322v SG=140
#35 (Det) Plate 290v SG=110
#44 (IF) Plate=335 SG=139
#75 (2nd Det) Plate=180
So I removed power, plugged the 42 back in. I put my meter across P to K on the 44(RF) tube. Tuned the beast on. Voltage read 322 for a few seconds then quickly dropped down to 160v. I know the 42 is good. What in the world is going on.
One more tidbit that I found. The speaker that came with this doesn't seem to be original. The field coil is actually around 5k ohms instead of the 1.1k ohms it should be. The voice coil is a bit low as well. It is about 300 Ohms. Doesn't seem like that would affect the voltages though.
Tom
. Voltages read the same when the 42 is inserted. Strangely enough, when I read the voltages with the 42 out of the equation, my voltages actually seem to be too high. Here is what I get with the 42 pulled...Is this normal?#44 (RF) Plate=322v SG=140
#35 (Det) Plate 290v SG=110
#44 (IF) Plate=335 SG=139
#75 (2nd Det) Plate=180
So I removed power, plugged the 42 back in. I put my meter across P to K on the 44(RF) tube. Tuned the beast on. Voltage read 322 for a few seconds then quickly dropped down to 160v. I know the 42 is good. What in the world is going on.
One more tidbit that I found. The speaker that came with this doesn't seem to be original. The field coil is actually around 5k ohms instead of the 1.1k ohms it should be. The voice coil is a bit low as well. It is about 300 Ohms. Doesn't seem like that would affect the voltages though.
Tom
