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7th Sep 2015, 10:45 am | #1 |
Retired Dormant Member
Join Date: Sep 2015
Location: Forres, Moray, UK.
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Changing Voltage from 110 Volts to 220 Volts on a Tandberg 2075 Receiver
Hello,
I have recently bought a gorgeous Tandberg TR 2075 Receiver from Canada. Unfortunately it operates on 110 Volts. I have read that it's possible to change the voltage internally with this Receiver, but I can't find any instructions on how to do this anywhere on the web. I would very much appreciate help and advice with this. Thank you very much. |
7th Sep 2015, 10:50 am | #2 |
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Re: Changing Voltage from 110 Volts to 220 Volts on a Tandberg 2075 Receiver
IF it's possible to change the voltage, it's a matter of connecting the mains transformer's primary windings in series rather than in parallel. There may be straps or links which you can reconfigure. Otherwise you'll need to unsolder and resolder wires.
Alternative you could use an external transformer of suitable rating.
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7th Sep 2015, 10:55 am | #3 |
Octode
Join Date: Feb 2007
Location: Ely, Cambridgeshire, UK.
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Re: Changing Voltage from 110 Volts to 220 Volts on a Tandberg 2075 Receiver
Open it up and do a picture of the mains side of the transformer so we can see if it is possible.
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7th Sep 2015, 11:13 am | #4 |
Heptode
Join Date: Feb 2013
Location: Yarm, North Yorkshire, UK.
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Re: Changing Voltage from 110 Volts to 220 Volts on a Tandberg 2075 Receiver
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7th Sep 2015, 11:20 am | #5 |
Heptode
Join Date: Feb 2013
Location: Yarm, North Yorkshire, UK.
Posts: 535
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Re: Changing Voltage from 110 Volts to 220 Volts on a Tandberg 2075 Receiver
The mains transformer has indeed series or parallel connection possibility - see attached pic.
Colin |
7th Sep 2015, 11:40 am | #6 |
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Re: Changing Voltage from 110 Volts to 220 Volts on a Tandberg 2075 Receiver
Remove the wires from 1-2 and 3-4 making sure to maintain the connection to the mains lead. Provide a new wire from 2-3.
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
7th Sep 2015, 11:44 am | #7 |
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Re: Changing Voltage from 110 Volts to 220 Volts on a Tandberg 2075 Receiver
As a side issue, the FM de-emphasis is likely to be set for North America (75uS) rather than Europe (50uS). There may be a switch or jumper on the circuit board to change this, but if you don't or can't change it, FM reception will sound dull and lacking in high treble.
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7th Sep 2015, 12:25 pm | #8 |
Dekatron
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Location: Leominster, Herefordshire, UK.
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Re: Changing Voltage from 110 Volts to 220 Volts on a Tandberg 2075 Receiver
If those aux mains outlets are marked as 120V in any way, it would be sensible to re-mark them as 240V. You never know who might end up with the set!
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7th Sep 2015, 1:08 pm | #9 |
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Re: Changing Voltage from 110 Volts to 220 Volts on a Tandberg 2075 Receiver
Or disconnect them.
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7th Sep 2015, 10:51 pm | #10 |
Nonode
Join Date: Jan 2010
Location: North Somerset, UK.
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Re: Changing Voltage from 110 Volts to 220 Volts on a Tandberg 2075 Receiver
That would be preferable in my view as they may be of marginal safety on 240 volts.
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9th Sep 2015, 10:29 am | #11 |
Nonode
Join Date: Jun 2009
Location: Herefordshire, UK.
Posts: 2,495
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Re: Changing Voltage from 110 Volts to 220 Volts on a Tandberg 2075 Receiver
Does the op really mean 220V? I notice the upper transformer primary on the diagram has a tap - so this is probably for 220V operation - provided the primaries are wired in series.
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