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Vintage Radio (domestic) Domestic vintage radio (wireless) receivers only. |
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15th Feb 2019, 2:46 pm | #1 |
Retired Dormant Member
Join Date: Feb 2019
Location: London, UK.
Posts: 1
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Mains switchover not happening on Roberts R606-MB
Hello. I am new to this site and haven’t fathomed out the search facility yet, so forgive me if this is a common thread. My radio (listed above) works just fine. That is, until I plug in a mains cable. The expected switchover to mains power doesn’t take place, the radio continues to work, using battery power. It is possible to depress the little “pedal” in the plug socket. What might be my solution. Thanking you in advance. Jonathan
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15th Feb 2019, 4:41 pm | #2 |
Dekatron
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
Posts: 9,642
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Re: Mains switchover not happening on Roberts R606-MB
Hello and welcome. The switch on these is apparently prone to failure.
This thread may also give some clues to your problem: https://www.vintage-radio.net/forum/...d.php?t=121588 PS. found by entering R606-MB in the "search this website" box above |
15th Feb 2019, 6:46 pm | #3 |
Rest in Peace
Join Date: Mar 2006
Location: N.W. Oxfordshire(Chipping Norton)
Posts: 7,306
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Re: Mains switchover not happening on Roberts R606-MB
If it's not already fitted, one solution would be to add a series diode (1N4007 or similar) with its cathode (banded end) connected to the switch in the power socket, and it's anode to the DC +ve. Since the DC supply from the mains unit is higher than that from the battery, this prevents the batteries running down when the mains lead is connected. This, of course, only works if there is adequate DC voltage when the radio is connected to the mains.
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