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70s Akai Overvoltage


I was going to Import an Akai (Am-2600/650 or 800) from Europe to the UK to match my UK Spec AT-2400, as I can't seem to find another UK spec piece for sale.

I was worried about using Euro spec equipment on the UK mains due to the Slight voltage difference. I know that modern equipment has a 10% Overvoltage tolerance, but I'm not sure if older equipment has that as well.

Rather be safe than sorry!

Re: 70s Akai Overvoltage

According to the schematic of the AM-2600 there are three different power transformers T901. The AM-2600T-1 is a multi-voltages (110-220-240V), the AM-2600T-2 is a 120V, and the AM-2600T-3 is also a multi-voltages for 220-240V operation. For 220V operation the power line is connected between the red and white wires from the transformer, but for 240V operation the power line is connected between the red and blue wires from the transformer. Consult the last pages of the service manual on this site.

Re: 70s Akai Overvoltage

a google search produced this

In England the standard voltage is 230 V and the frequency is 50 Hz. You can use your electric appliances in England, if the standard voltage in your country is in between 220 - 240 V (as is in the UK, Europe, Australia and most of Asia and Africa). ... You can also consider a combined power plug adapter/voltage converter.

Re: 70s Akai Overvoltage

FWIW UK voltage is actually 240V 50Hz. The 230V (-6% +10%) figure is for manufacturers to ensure compatibility across the EU.

As you say, a voltage converter may be needed for older European gear (pre 2003) or some Chinese imports designed for 220V.

Re: 70s Akai Overvoltage

I believe we changed from 240V to 230V in about 2003-4 in order to be more compatible with the European standard.

Most UK spec equipment can handle the change relatively well, as many manufacturers built their equipment to handle 220-40 so they could sell to all of Europe without having to build and install 2 types of transformer for the same market (IIRC Ireland and Malta also use 240/30V)

The amplifier I'm using as a stop-gap is multivoltage (A tattered Technics SA-AX530) while my tuner (Akai AT-2400) is set for 240v but I've not had any issues with that so far.

I'd assume that the European standard for overvoltage is based off of a pre EU legislation, though I didn't want to chance it.