Sure, I'd be happy to help. I just might need a day or two to get to it because we're finishing home renovation #3 for the summer, so it's been really busy.Since these output transformers are *in hand* can we get some numbers?
What are the resistances. This will give an indication/comparison of wire size.
You have mentioned some turns ratios. What specifically is the ratio?
What are the measurements of the EI laminations HxWxD?
Can you tell if they used paper or plastic?
Any idea of the how many layers of windings.
How much do they weigh?
IOW there are plenty of variables. Can we narrow down a few?
Both.I don't think I mentioned ratios, but I can certainly measure resistances. Which are you interested in?
So you mean the OT primaries and secondaries?Both.
The ratios will be telling if they are off by a substantial amount. The resistances will indicate if the wire size is similar. There may be many more turns with smaller wire. For instance the pro jr and blues junior have primary of 7k/8 Ohm secondary yet the wire measures 100 Ohms. The Classictone 5E3 8k primary measures ~350 ohms.
No, I mean winding ratios and primary resistances. The secondary resistances are such small resistances, it would be hard to to make reasonable generalizations.So you mean the OT primaries and secondaries?
Ok, I'll hook them up to AC and measure. I might have an AC wall wart I can use for this, just because I feel that it's a bit safer.OT winding ratios are very fast to measure just feeding Mains AC between anode wires and then measuring exact Mains what it is as the moment and all outputs. When OT has wires I tape them to table top so that they do not short and tack solder a scrab Mains cable.
As percentages:You measured the primary resistance for both OTs. Did you measure the resistance of both HALVES of the primaries? I am sure the Hammond won't have the same resistance for the two halves, but perhsps the PAM has better matching between the halves?