5F6A build: first time using 220V tap

[Jonny toetags]

Hi guys,

I've built over 10 5F6A's over the years and have to build one for 220V mains.
I'm going to be using the Classictone 40-18029 PT and was wondering, besides putting in a fuse with half rating of 110, are there any other things I need to be aware of?

[mozz]

Do you have 220v to test it?

[Helmholtz]

Out of curiosity: Where is the amp going to be used? (Europe has 230V mains.)

[Jonny toetags]

Do you have 220v to test it?

I will be buying a step up transformer.

[Jonny toetags]

Out of curiosity: Where is the amp going to be used? (Europe has 230V mains.)

UK.

[loudthud]

Apparently the transformer has primary taps for 100V, 120V, 220V and 240V.

[pdf64]

Whilst the eu harmonised official uk nominal mains is 230V, in reality it’s still maintained at the pre harmonised 240V.
Dunno how much difference the 50Hz would make.

[Dave H]

Apparently the transformer has primary taps for 100V, 120V, 220V and 240V.

Definitely use the 240V tap for the UK.
I often measure over 250V here (mid Cheshire)

[Jonny toetags]

Thanks Dave....i was going on what my buddy told me but 240V is right.

[Jonny toetags]

So other than using the 240 tap, the rest stays the same?
Someone told me to use a lower rated fuse.

[Justin Thomas]

That "Thumbs Up" wasn't to say "use a smaller fuse." It was meant as "I have seen the same proposition & have the same question."

Justin

[Helmholtz]

So other than using the 240 tap, the rest stays the same?
Someone told me to use a lower rated fuse.

The mains/primary fuse for 240V should have half the current rating of the 120V version as primary current is reduced by around 50% for the same power.

[loudthud]

Can you find the correct Mains plug to ship with the amp ? Will the amp have an IEC inlet and the customer will supply a Mains cord set ?