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vibroverb custom64 240v transformer

shednz
August 26th, 2011, 02:43 AM
hi, just got a vibroverb custom 64 amp. I am in NZ where we are on 240v power. The previous owner brought this amp in from the states and had the transformer replaced with a vibrolux one. Is that the best option for this job? I think the choke is after market too by the look of it. Thanks for advice.

Wally
August 26th, 2011, 03:14 PM
shednz, the '63 1X15 Vibroverb used the 125P5D PT...export model 125P5DX. The number for 1966 and later for this PT would be 022798.
The Vibrolux REverb used PT model 125P7D/022814. My charts dont' show an 'export' number, but one would think that 'DX' on the end of the USA model would be correct.
The difference would be in voltage, I would think. The '64 Vibrolux ran lower voltages....B+ of 410V than do the '68 and later Vibrolux Reverb schematics. NOte that my charts don't show a change of PT's in '68, but one would wonder how the difference came about if they didn't change either the model of PT or the specs for the 125P7D/022798 PT. The later Vibrolux REverbs show to run the same B+ as the '63 Vibroverb....465V.

IF you are really curious, the folks at MErcury Magnetics have always been very helpful, ime.

shednz
August 26th, 2011, 03:29 PM
Thanks Wally - the vibroverb I have is one of the reissue SRV models. Does anyone know if it came out with the same size transformer as the original blackface vibroverb? cheers

Roe
September 6th, 2011, 01:01 PM
classictone has a good, affordable PT for vibroverbs, bassmans and supers