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Is it sufficiently standardised, that I co do this irrespective of which slots these wires are in and without access to the schematic to confirm?
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
Keen to do this on that amp but don't want to assume colour coding of wires is common across all amps!
Without a schematic, the best method is to measure the voltages on the taps after having traced which ones go to the unconnected terminals on the PCB.
The first time I come across a new Vibro-Champ I will be certain to do this and post the result, but I haven't yet...
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
I recently bought a 64 Princeton reissue and having read about cooking the the tubes at 230v I got my local amp tech to adjust it accordingly. What I wasn't expecting was for the noise floor to almost disappear.
Previously with volume set at around 3 there was noticeable hissing and background noise. Now? Nothing.... I have to turn the volume to around 8 to hear anything. I'd swear the amp also sounds sweater.... less edgy.
Based upon my experience I'd highly recommend the 230v to 240v 'modification'. Saves tubes and problems in the long term and gives immediate sound benefits.
Bandcamp
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Rift Amplification
Brackley, Northamptonshire
www.riftamps.co.uk
As always, it only really matters if you're cranking it right up. At anything less than full power - ie when the amp is still clean, or at no louder volume than the maximum it can produce clean if you're using a pedal for overdrive - then it's not critical at all.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
It has a multi-tap primary but without either a schematic or measuring them I cannot say what wire (if any) is correct
Rift Amplification
Brackley, Northamptonshire
www.riftamps.co.uk