Hello-
As I understand it the Drake 784-139 50 watt Plexi output transformer is stacked with a non grain oriented (M29 or M50) core. However, it is a more interleaved transformer than many others (to get the highs). With this being said, my question is in regards to the Marshall tone and if this particular transformer design is playing a deliberate role. Taking the 50 watt Plexi style amp, with the 250 ufd cathode bypass used at V1, there is much more low frequency gain, with tendency to get muddy. Being the 784-139 transformer is going to have somewhat less pronounced bass than a comparable transformer stacked with M6 core is that the reason it is being used, possibly "reducing" some of the low frequency muddiness?
Just curious as I have some 784-139 style wound outputs but stacked with M6 steel. These were targeted for other style builds but I have been wondering about Marshall's core choice reasoning.
Thanks for any info.
As I understand it the Drake 784-139 50 watt Plexi output transformer is stacked with a non grain oriented (M29 or M50) core. However, it is a more interleaved transformer than many others (to get the highs). With this being said, my question is in regards to the Marshall tone and if this particular transformer design is playing a deliberate role. Taking the 50 watt Plexi style amp, with the 250 ufd cathode bypass used at V1, there is much more low frequency gain, with tendency to get muddy. Being the 784-139 transformer is going to have somewhat less pronounced bass than a comparable transformer stacked with M6 core is that the reason it is being used, possibly "reducing" some of the low frequency muddiness?
Just curious as I have some 784-139 style wound outputs but stacked with M6 steel. These were targeted for other style builds but I have been wondering about Marshall's core choice reasoning.
Thanks for any info.
