BBC Micro & Master - High Quality Power Supply Capacitor Kit
Discounts available for multiple purchases

This is a Buy-It-Now sale for a set of three capacitors, use to refurbish the most common issues with Switch Mode Power Supplies found in BBC Micros, and Master 128s.

Turned your BBC Micro on after 30 years being in the loft, only for it to go bang in a puff of smoke? Bought your latest "untested" machine off eBay, only to find it doesn't turn on? You've got the standard power supply issues that are common to all these machines, and it just needs a little TLC.

Most issues with the power supply can be resolved by changing three capacitors in the circuit. C1, C2, and C9. Once changed, your PSU should be good to go for many more years to come. Some PSUs will require more work, and other caps or components to change, but the vast majority can be fixed with just these three basic parts.

The kit comes with three main caps that should always be changed when servicing your power supply:

  • C2 - 100nF X2 - RIFA
  • C1 - 10nF X2 - RIFA
  • C9 - 220uF 35v - Rubycon
The components supplied are high quality, not like some other kits you may see being sold on eBay and elsewhere. Don't be tempted to fit cheap and nasty low grade Chinese caps, such as Suntan. They won't last as long as the genuine high quality ones supplied here. 

The kit also comes with a fitting guide, to help you with the replacement. The components are the correct type for the power supplies found in the vast majority of machines. There are a few different brands of PSU, such as those by Hitron and Wongs, that are laid out different, and may need different components. Please email me with a photo of your PSU if you're not sure.

If you prefer not to do the work yourself, I can either refurbish your power supply, or supply you with an outright replacement, if I have stock.

IMPORTANT: You will need to be able to solder and de-solder competently in order to fit these components. You also need to be aware that mains power supplies contain dangerous voltages, even for a while after they've been disconnected from the mains. and should be worked on with care.

** Please see my feedback to see what other people who have bought my items think of them **
** You will not be disappointed! **

** FREE UK POSTAGE **

** Worldwide shipping at cost - please check my feedback! **

Kits are also available to upgrade your BBC B or Master with our popular Internal DataCentre system.
We also supply GOTEK USB drives for the BBC Micro, as well as Raspberry Pi multi-core Second processors in internal and external versions.
As well as 1770 Disk Upgrade kits, 4 way switchable OSs for the Master 128 and 2 way for the B+, we can supply other refurbished BBC Model Bs and Master 128s to your specification.
Please check my other items for sale, or if they've sold out on my listings, please contact me for details.