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