Capacitors for the ZX Spectrum

Old electrolytic capacitors can dry out and fail so it's a good idea to replace them before damage occurs. For 128 cap packs, see the Spectrum 128 section.

Products:

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Blue axial capacitors For Spectrum 16/48 and Composite Mod Kit

Blue Axial Capacitors For ZX Spectrum & Composite Video Mod Kit

  • A set of new blue coloured axial type electrolytic capacitors for the Spectrum 16 / 48 / 48+ made by Dubilier, a long established brand. (Axial caps have a wire at each end, ie: the same form as those originally fitted to the Spectrum PCB.)
  • This kit also includes components to modify the Spectrum's video output to give a composite video signal from the existing phono connector and parts for the DC-DC improvement mod for issue 2 boards.
  • Brief fitting instructions included, with full details here.
  • Unfortunately, the cheaper black axial caps are no longer available.
Price: £ 8.50   Add to cart. (11 in stock)
Capacitor for Spectrum video mod

A 100uf  Radial Electrolytic Capacitor

A capacitor suitable for making the composite video mod on ZX Spectrums

Please see this article for details.

Price: £ 0.20   Add to cart. (26 in stock)
Caps to reduce Jail bars effect Spectrum16K and 48K

"Jail bars" reduction caps.

  • A set of 4 x 220nf ceramic, axial capacitors to replace C5-C8 on the Spectrum 16/48 PCB (issue 2-6A) which can help reduce the "jail bar" effect in the display as described here.
  • These capacitors can be fitted either way around as (unlike electrolytic types) they are not polarized.
Price: £ 0.99   Add to cart. (20 in stock)
Ceramic 100nf Axial Capacitor ie: 0.1uf

Ceramic 100nf (0.1uf) Axial Capacitor

  • As used at locations C31, C32, C43, C75*, C77* on the Spectrum motherboard
  • *Issue 3+
Price: £ 0.29   Add to cart. (50 in stock)
Ceramic 100pf Axial Capacitor

Ceramic 100pf Axial Capacitor

  • As used at location C64, C67* on the Spectrum motherboard
  • (* Issue 2 mod and issue 3+)
Price: £ 0.35   Add to cart. (87 in stock)
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 
Price: £ 0.20   Add to cart. (65 in stock)
Ceramic 150pf Axial Capacitor

Ceramic 150pf Axial Capacitor

  • As used at locations C52, C53 on the Spectrum motherboard
Price: £ 0.35   Add to cart. (70 in stock)
Ceramic 15pf Axial Capacitor

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).
Price: £ 0.30   Add to cart. (70 in stock)
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
Price: £ 0.25   Add to cart. (40 in stock)
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)
Price: £ 0.30   Add to cart. (51 in stock)
Ceramic 33pf Axial Capacitor

Ceramic 33pf Axial Capacitor

  • As used at C37,C38 locations on the Spectrum motherboard and on other micros
Price: £ 0.29   Add to cart. (83 in stock)
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+
Price: £ 0.30   Add to cart. (100 in stock)
Ceramic 47pf Axial Capacitor

Ceramic 47pf Axial Capacitor

  • As used at location C63 on the Spectrum motherboard
Price: £ 0.35   Add to cart. (12 in stock)
Ceramic 560pf Axial Capacitor

Ceramic 560pf Axial Capacitor

  • As used at location C49 on the Spectrum motherboard  (issue3B+) 
Price: £ 0.35   Add to cart. (100 in stock)
Ceramic disc capacitors 10 x 100nf (0.1uf)

Ten 100nf (0.1uf) ceramic disc capacitors

  • As used in various locations the PCB (usually marked "104" on the body of the cap) of the Commodore 64, Spectrum and other micros 
  • Ceramic capacitors do not age in the same way as electrolytics so usually don't need to be replaced, but they are quite fragile and sometimes found physically damaged.
Price: £ 0.99   Add to cart. (1 in stock)
Ceramic disc capacitors 10 x 10nf (0.01uf)

Ten 10nf (0.01uf) ceramic disc capacitors

  • As used in various locations the PCB (usually marked "103" on the body of the cap) of the Commodore 64, Spectrum and other micros 
  • Ceramic capacitors do not age in the same way as electrolytics so usually don't need to be replaced, but they are quite fragile and sometimes found physically damaged.
Price: £ 0.99   Add to cart. (2 in stock)
Ceramic disc capacitors 10 x 22nf

Ten 22nf ceramic disc capacitors

  • As used in various locations the PCB (usually marked "223" on the body of the cap) of the Commodore 64, Spectrum and other micros 
  • Ceramic capacitors do not age in the same way as electrolytics so usually don't need to be replaced, but they are quite fragile and easily damaged.
Price: £ 0.99   Add to cart. (5 in stock)
Ceramic disc capacitors 10 x 4.7nf

Ten 4.7nf ceramic disc capacitors

  • As used in various locations the PCB (usually marked "472" on the body of the cap) of the Commodore 64, Spectrum and other micros 
  • Ceramic capacitors do not age in the same way as electrolytics so usually don't need to be replaced, but they are quite fragile and sometimes found physically damaged.
Price: £ 0.99   Add to cart. (4 in stock)
Ceramic disc capacitors 10 x 47nf

Ten 47nf ceramic disc capacitors

  • As used in various locations the PCB (usually marked "473" on the body of the cap) of the Commodore 64, Spectrum and other micros 
  • Ceramic capacitors do not age in the same way as electrolytics so usually don't need to be replaced, but they are quite fragile and easily damaged.
Price: £ 0.99   Add to cart. (2 in stock)
Ceramic disc capacitors 5 x 100pf

Five 100pf Ceramic disc capacitors

  • As used on the motherboard of the ZX Spectrum and other old computers
Price: £ 0.50   Add to cart. (6 in stock)
Ceramic disc capacitors 5 x 16pf

Five 16pf Ceramic disc capacitors

  • As used on the motherboard of the ZX Spectrum and other old computers
Price: £ 0.75   Add to cart. (out of stock)
Ceramic disc capacitors 5 x 33pf

Five 33pf Ceramic disc capacitors

  • As used on the motherboard of the ZX Spectrum and other old computers
Price: £ 0.50   Add to cart. (6 in stock)
Ceramic disc capacitors 5 x 47pf

Five 47pf Ceramic disc capacitors

  • As used on the motherboard of the ZX Spectrum and other old computers
Price: £ 0.50   Add to cart. (1 in stock)
Ceramic disc capacitors 5 x 560pf

Five 560pf Ceramic disc capacitors

  • As used on the motherboard of the ZX Spectrum and other old computers
Price: £ 0.50   Add to cart. (2 in stock)
DC-DC mod components for Issue 3

DC-DC mod components for Issue 3 / 3B Spectrum boards

A pack of the following components to do the DC-DC circuit modification:

  • 1 x 1uf Axial Capactitor 
  • 1 x 22uf Axial Capactitor 
  • 2 x BA157 Diodes
  • 1 x 1N4148 Diode
  • 1 x 5v Zener Diode
  • 1 x 220 Ohm Resistor
  • 1 x 2.2K Resistor

Instructions included.

Price: £ 2.99   Add to cart. (4 in stock)
ZX Interface One Iss4 Capacitors

Replacement capacitors for ZX Interface One - Issue 4 PCB

  • 3 x 47uf axial capacitors
Price: £ 1.50   Add to cart. (1 in stock)

ZX Microdrive capacitors

A pack of 4 capacitors suitable for recapping a ZX Microdrive. It contains:

  • 0.22uf radial
  • 0.47uf radial
  • 22uf radial
  • 22uf axial (early models)
Price: £ 1.50   Add to cart. (out of stock)