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What is B-Grade?

B-Grade includes used and unused returned products, end of line, slightly marked or refurbished products.

To ensure peace of mind each product comes with our 12 month guarantee having been fully tested by our team of in-house technicians.

What's even more attractive, all of the B-Grade products are reduced in price!

B GRADE IS ONLY AVAILABLE VIA THE WEBSITE

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Terms & Conditions

AC/DC Fixed Voltage 500mA Unregulated Power Supplies

12V 500mA Unreg PSU

12V 500mA Unreg PSU

GS75S

Order Code: GS75S

Home Delivery

Not available online

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ONLY GBP£4.99

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9V 500mA Unreg PSU

9V 500mA Unreg PSU

GS74R

Order Code: GS74R

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ONLY GBP£4.99

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15V 500mA Unreg PSU

15V 500mA Unreg PSU

GS76H

Order Code: GS76H

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ONLY GBP£5.99

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  • Linear power supply
  • Thermal fuse protection
  • Interchangeable output plugs
  • Plug top black ABS housing

Buying Guide

Unsure what the voltage and connector is for your holiday destination? Click here for our guide to connections and voltages worldwide.


Order Output
Code Voltage Dimensions
GS74R DC 9V 50(l) x 68(w) x 39.5(d) mm
GS75S DC 12V 50(l) x 68(w) x 39.5(d) mm
GS76H DC 15V 78(l) x 52(w) x 51.6(d) mm
N88AT DC 24V 83(l) x 58.5(w) x 51.6(d) mm
Input Voltage: AC 230V, 50Hz
Input Power Plug: UK 3 Pin Mains Plug
Output Current: 0.5A (500mA)
Output Voltage Type: Fixed
Output Power (Max): 4.5W
Regulated Output: No
Polarity: Centre Positive
Reversible Polarity: Yes
Number of Tips or Sockets: 8
Output Tips/Socket Type:
Output Power Cord Length: 1.8m
Switched Mode Supply: No
Weight: 289g
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Customer Reviews for AC/DC Fixed Voltage 500mA Unregulated Power Supplies

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Customer Questions about AC/DC Fixed Voltage 500mA Unregulated Power Supplies

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Q: We have a zone 40 game system for the kids which i think needs 9v DC will this be ok for that.

Charlie - 12/12/2009

Maplin says: Yes the product does support that.

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Q: I need a replacement 12v adaptor for a Netgear router - what do you recommend please?

Jerry Davies - 29/11/2009

Maplin says: No sorry this product does not support that. Try L54BL

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Q: i have a toshiba 20VL55G TV and have lost the power cable. It requires a 15V-4A supply, will this product be suitable for it? also, can you confirm that it plugs into the mains in the wall?

james Boyes - 26/11/2009

Maplin says: No sorry this product does not support that.

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Q: will this adapter support a goodmans 19" lcd tv?

neil - 21/11/2009

Maplin says: I would expect your TV so demand more current, N93AZ is more likely. You need to compare the current requirement for your set with the spec of any power supply you check.

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Q: Can unreg 24v be used with Epson Perfection 1660 scanner? Rated on rear as DC 24v-0.5a. Many thanks

simon mccreery - 30/09/2009

Maplin says: N88AT will be absolutely fine.

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Shop With Confidence

We offer a 28 day returns policy. We want our customers to be 100% satisfied every time they shop with us, should you change your mind we are here to help.

If you are not completely satisfied with your purchase, you can return the item to us in its original condition within 28 days of receipt and we will issue a full refund, or replace the item, if preferred.

We offer two ways to return a product either visit any one of our stores nationwide or by post which ever you prefer. For further information about our returns policy visit our help page if you wish to return an item please visit our returning an item help page.

Delivery Options

United Kingdom Options

Price Option Delivered
FREE Reserve for store pickup Ready for collection within 20 minutes✝
FREE all orders over £150 1 - 3 Working days
FREE all orders over £10 3 - 5 Working days
£2.99 all orders under £10 3 - 5 Working days
£Variable Shutl Now ASAP within as little as 90 minutes***
£Variable Shutl When Delivery within a 1 hour time slot on a date you choose✝✝
£15.00 Saturday Delivery before noon**

Republic of Ireland Options

Price Option Delivered
£8.50 Standard delivery 2-3 working days

Rest of World Options

With regret we are unable to ship to any other destinations at this time

✝ We will confirm to you by email/text message when the store has reserved the items for you. Reserved items will be held at the store up to 7 days after you receive notification. If the store is closed your request won't be processed until the next time they're open.

* Please ensure that your order is completed before 4pm the day prior to delivery needed (Mon-Fri)

** Saturday deliveries can only be placed before 4pm on the Friday before the scheduled Saturday delivery.

*** The Shutl express delivery service is only available if your order meets certain requirements. If it's available it will be displayed as a selectable delivery option during checkout.

✝✝ Date selection is limited to 14 days in advance including the current day. Selectable time slots are 1 hour long and vary depending on the date and delivery address.

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The prices below are per item and exclude VAT.

If you require a price for a larger quantity than shown above:

Contact B2B Team »

Why not tell us and our B2B sales team about your specific business needs and expectations?

Offering a 1-2-1 personal account management service each representative is able to help you ensure the service from Maplin meets your approval on all levels every time.

As well as being able to help you benefit from volume quotations and bespoke product sourcing our team also offers a wide range of business services including:

  • 30 Day EOM credit terms available on application
  • FREE delivery on all orders above £35
  • A range of guaranteed delivery services to ensure your goods are with you to meet those tight deadlines
  • Proforma Invoices
  • Scheduled and forward ordering system
  • Product branding and bespoke product sourcing available on application
  • Online and in-store account use
  • 5% discount for all schools and colleges
  • 7% discount for all universities
  • Sample product service – available on application
  • Supplier cross-referencing and BOM quotations

As you can see, our range of services is comprehensive and built to service every type of business need. We are committed to providing your business with 1st class sales and customer service.

Our aim is to establish mutually beneficial long-term relationships where our customers receive a high class of reliable service.

Please contact us on 0844 557 6000 to discuss your business needs with your individual account manager.

Website Information

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Maplin Electronics is a company registered in England No 1264385 1

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