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Spare parts for Commodore 64, ZX Spectrum and more!

Ceramic Axial Capacitors

High quality, long life, known brand electrolytic capacitors sold individually.

Notes:

The voltage rating on capacitors refers to the maximum voltage that be safely applied, so if for example, you can replace an old cap that has a 16v rating with one with a 50v rating without any issues (but do check the dimensions in case there are any physical contraints on the PCB or enclosure). It is the capacitance (measured in microfarads "uf") that is critical.

Electrolytic caps are almost always polarized - this means they need to fitted with the same orientation as the originals. In the case of radial caps (those with both leads coming from the same end) there is a stripe on the body of the cap denoting the negative lead. In the case of axial capacitors, there is an indentation in the body of the cap nearest the positive lead and a row of arrows pointing to the negative lead. Usually there will markings on the PCB to indicate which way around the caps should be mounted.

Products:

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Ceramic 100nf (0.1uf) Axial Capacitor

As used at locations C31, C32, C43, C75*, C77* on the Spectrum motherboard
*Issue 3+

Ceramic 100pf Axial Capacitor

As used at location C64, C67* on the Spectrum motherboard
(* Issue 2 mod and issue 3+)

Ceramic 10nf Axial Capacitor ie: 0.01uf or 10,000pf

Ceramic 10nf (0.01uf or 10,000pf) Axial Capacitor

As used at locations C35,C39 on the Spectrum motherboard

Ceramic 150pf Axial Capacitor

As used at locations C52, C53 on the Spectrum motherboard

Ceramic 15pf Axial Capacitor

As used at locations C72,C73 on the Spectrum motherboard (issue 3+)
Note: The service manual lists the actual value as 16pf - these are no longer available. Given that the original tolerance is given as 10% and these are 15pf with 5% tolerance, they are fine (confirmed by testing in my own board).

Ceramic 220nf Axial Capacitor ie: 0.22uf

Ceramic 220nf (0.22uf) Axial Capacitor

Can be used at C5-C8 on the original Spectrum16/48 to lessen the "Jailbar" effect

Ceramic 22nf Axial Capacitor ie: 0.022uf

Ceramic 22nf (0.022uf) Axial Capacitor

As various locations on the Spectrum motherboard (decoupling for RAM at C1-C8 and C55-C62, though these can be 47nf instead)

Ceramic 33pf Axial Capacitor

As used at C37,C38 locations on the Spectrum motherboard and on other micros

Ceramic 47nf Axial Capacitor ie: 0.047uf

Ceramic 47nf (0.047uf) Axial Capacitor

As used at locations C1-C8, C26, C33, C36*, C40, C42, C48, C49*, C55-C62, C66, C76** on the Spectrum motherboard
* Issue 2 only
** Issue 3+

Ceramic 47pf Axial Capacitor

As used at location C63 on the Spectrum motherboard

Ceramic 560pf Axial Capacitor

As used at location C49 on the Spectrum motherboard (issue3B+)