Author Topic: Roberts radio help adaptor  (Read 819 times)

velosam

  • '.....you used to be an apple on a stick.'
Roberts radio help adaptor
« on: 16 November, 2021, 02:55:11 pm »
I have a 2.5 year Roberts radio r 100 where the adaptor has stopped working.  Apparently I need ADAPTOR BLACK (UK) 15V - 2.4A POSITIVE PIN, can someone point me to aftermarket equivalent please.
 
I did check amazon but could not find something.

Thanks

Feanor

  • It's mostly downhill from here.
Re: Roberts radio help adaptor
« Reply #1 on: 16 November, 2021, 04:19:34 pm »
Available directly from Roberts, it looks like:

https://www.robertsradiotechnical.co.uk/extpartsrequest.aspx


Roberts by Ron Lowe, on Flickr

velosam

  • '.....you used to be an apple on a stick.'
Re: Roberts radio help adaptor
« Reply #2 on: 16 November, 2021, 06:48:21 pm »
Thanks, I was trying to get something cheaper. To be honest I am irritated its broken after 2.5 years and has been plugged in a single plug all this time.

Re: Roberts radio help adaptor
« Reply #3 on: 16 November, 2021, 07:24:14 pm »
The other bit of information needed is the size of the plug - assuming it's one of this sort of thing, the outer diameter and possibly the pin diameter are needed.


velosam

  • '.....you used to be an apple on a stick.'
Re: Roberts radio help adaptor
« Reply #4 on: 16 November, 2021, 09:13:28 pm »
Will measure tomorrow, but its a L bend

Feanor

  • It's mostly downhill from here.
Re: Roberts radio help adaptor
« Reply #5 on: 16 November, 2021, 09:45:31 pm »
If you are looking for Much Cheapness, then any PSU that outputs 15v and can do at least 2.4A is fine.

Then, as Matt says, it's down to what the plug type is.
It might be a standard one, or it might be proprietary.

Most normal barrel-type ones are + centre, which is correct for your thing ("positive pin").
Many cheap PSUs come with a selection of plugs which can be fitted to the end of the cable.
So if you don't know the exact type, then this may be an option.

You might need to compromise on the right-angle thing.
Much Cheapness comes at a cost.



Kim

  • Timelord
Re: Roberts radio help adaptor
« Reply #6 on: 16 November, 2021, 10:01:42 pm »
If the connector's particularly exotic, you could always splice the cable with the plug from the old adaptor.

Jaded

  • The Codfather
  • Formerly known as Jaded
Re: Roberts radio help adaptor
« Reply #7 on: 16 November, 2021, 10:28:41 pm »
^ sense.
If you don't like your democracy, vote against it.

Re: Roberts radio help adaptor
« Reply #8 on: 16 November, 2021, 11:20:42 pm »
Don't go too cheap with the power supply as electrical noise will affect the radio. Quite a few older Roberts radios had linear power supplies probably for that reason.

Re: Roberts radio help adaptor
« Reply #9 on: 17 November, 2021, 07:53:09 am »
Also, be aware that the most common sizes are 2.1 or 2.5 mm - so you need to be fairly accurate with your measurements. 1.7 is another size, which irritatingly has two pin diameters.
One of the supplies that comes with a set of plugs can be useful there, though you need to make sure you plug the plug in the right way round and they don't tend to be the best quality.

Re: Roberts radio help adaptor
« Reply #10 on: 17 November, 2021, 08:19:13 am »
I have to say, £16 for a proprietary supply seemed excellent value compared to many.
We are making a New World (Paul Nash, 1918)

Re: Roberts radio help adaptor
« Reply #11 on: 17 November, 2021, 08:33:40 am »
Yes, plus  a 'cheaper' no name replacement will not last for 2.5 years of continuous use (as implied by the OP)

Upgrade would not be much more expensive. Moving away from wall wart = better cooling and more space for electrickery,

You also get a specification:

Quote
Mean Time Between Failure >200 kHrs MIL-HDBK-217F at 25 °C GB

Only disadvantage is trailing leads.

Link 15 Volt 3.5 Amps 2.5 mm DC socket. Similar 2.1 PSU available from same supplier CPC.

https://cpc.farnell.com/xp-power/vec50us15/adaptor-ac-dc-15v-3-33a/dp/PW04561?st=Power%20supply


Kim

  • Timelord
Re: Roberts radio help adaptor
« Reply #12 on: 17 November, 2021, 12:04:27 pm »

velosam

  • '.....you used to be an apple on a stick.'
Re: Roberts radio help adaptor
« Reply #13 on: 17 November, 2021, 01:43:37 pm »
The Roberts adaptors are not branded, and they don't even say Roberts. But you are right it it maybe worth just paying the £24 for one, adding vat and postage.

Re: Roberts radio help adaptor
« Reply #14 on: 17 November, 2021, 02:42:38 pm »
If you add a few batteries to bump the CPC order over £17:50 it's post free.

velosam

  • '.....you used to be an apple on a stick.'
Re: Roberts radio help adaptor
« Reply #15 on: 19 November, 2021, 01:45:35 pm »
I think the problem with that is I need an L shaped connector as the power feed is on the bottom of the radio.

Re: Roberts radio help adaptor
« Reply #16 on: 19 November, 2021, 01:49:13 pm »
Are there L shaped adapters available?

I wouldn't know where to start looking for such a thing but there are so many curious pingfuckits that I would be more surprised if such an adapter wasn't available.

velosam

  • '.....you used to be an apple on a stick.'
Re: Roberts radio help adaptor
« Reply #17 on: 19 November, 2021, 04:10:06 pm »
Maybe, but I just make get it from Roberts. I just dont want to keep spending £23 all the time if they are cheap rubbish adaptors.

Wombat

  • Is it supposed to hurt this much?
Re: Roberts radio help adaptor
« Reply #18 on: 19 November, 2021, 05:33:47 pm »
I have to say my experience with Roberts quality has been disappointing in the extreme.  This includes knobs going sticky  :sick: after a few years, just generally crap functionality, then dying completely, to crap chargers that destroy the batteries.  I do have one FM radio that still sort of functions, but as we have no FM signal here unless I use a directional antenna on the roof, its as much use as the proverbial chocolate teapot.  Both of ours required a battery change to be done in lightning fast time, before it totally loses its station memory, and they put little tabs in the way so you can't get the batteries out quickly.  Portable provision in this house is now courtesy of Sony.
Wombat

velosam

  • '.....you used to be an apple on a stick.'
Re: Roberts radio help adaptor
« Reply #19 on: 19 November, 2021, 09:31:40 pm »
I think I may just sell mine. I bought it for my son and he doesn't come here anymore

Re: Roberts radio help adaptor
« Reply #20 on: 20 November, 2021, 07:06:18 pm »
I have to say my experience with Roberts quality has been disappointing in the extreme.  This includes knobs going sticky  :sick: after a few years, just generally crap functionality, then dying completely, to crap chargers that destroy the batteries.  I do have one FM radio that still sort of functions, but as we have no FM signal here unless I use a directional antenna on the roof, its as much use as the proverbial chocolate teapot.  Both of ours required a battery change to be done in lightning fast time, before it totally loses its station memory, and they put little tabs in the way so you can't get the batteries out quickly.  Portable provision in this house is now courtesy of Sony.

We have a Sony that’s been reliable, with a minor drawback of having to use rechargeable batteries. Neither Roberts nor Pure have proven reliable nor long-lived.
We are making a New World (Paul Nash, 1918)

Wombat

  • Is it supposed to hurt this much?
Re: Roberts radio help adaptor
« Reply #21 on: 21 November, 2021, 12:23:12 pm »
Our living room Sony was bought on YACF recommendation, possibly yours!  Its doing fine, on Eneloop Pro batteries.
Wombat

velosam

  • '.....you used to be an apple on a stick.'
Re: Roberts radio help adaptor
« Reply #22 on: 22 November, 2021, 11:26:18 am »
Well a good start to the day, they have offered to send out a replacement. Once that gets here, I will sell the radio