Original 1964 Vibroverb Question

[Planobilly]

Hi Guys,

I did a rebuild on a Original 1964 Fender Vibroverb today. What a killer sounding amp! I had never actually even seen one before other than in photos.
This one was a blackface. As I understand they were only made in 1963 and 1964 and only around 300 were produced.

I took a look at the AA736 schematic and the AB736 schematic. I did not see a difference. Is there any difference?

Thanks,

Billy

[sluckey]

There are quite a few differences scattered across the schematics.