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 Cornell Dubilier (ie: Illinois Capacitor) 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.

A 100uf  Radial Electrolytic Capacitor

A capacitor suitable for making the composite video mod on ZX Spectrums (one of these is included in the Spectrum cap pack above).

Please see this article for details.

Capacitors For ZX Printer

Four new electrolytic caps as used on the ZX Printer's mainboard:

• C2 = 100uf (16v)
• C3, C11 = 10uf (16v)
• C4 = 100uf (63v)

"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.

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 (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 (0.22uf) Axial Capacitor

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

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 (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+) 

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.

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.

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.

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.

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.

Five 100pf Ceramic disc capacitors

• As used on the motherboard of the ZX Spectrum and other old computers

Five 16pf Ceramic disc capacitors

• As used on the motherboard of the ZX Spectrum and other old computers

Five 33pf Ceramic disc capacitors

• As used on the motherboard of the ZX Spectrum and other old computers

Five 47pf Ceramic disc capacitors

• As used on the motherboard of the ZX Spectrum and other old computers

Five 560pf Ceramic disc capacitors

• As used on the motherboard of the ZX Spectrum and other old computers

Ceramic radial capacitor 150pf

• Alternative to older type ceramic disc capacitor
• Sold individually

Ceramic radial capacitor 150pf

• Alternative to older type ceramic disc capacitor
• Sold individually

Ceramic radial capacitor 16pf

• Alternative to older type ceramic disc capacitor
• Sold individually

Ceramic radial capacitor 180pf

• Alternative to older type ceramic disc capacitor
• Sold individually

Ceramic radial capacitor 33pf

• Alternative to older type ceramic disc capacitor
• Sold individually

Ceramic radial capacitor 470pf

• Alternative to older type ceramic disc capacitor
• Sold individually

Ceramic radial capacitor 47pf

• Alternative to older type ceramic disc capacitor
• Sold individually

Ceramic radial capacitor 560pf

• Alternative to older type ceramic disc capacitor
• Sold individually

Ceramic radial capacitor 680pf

• Alternative to older type ceramic disc capacitor
• Sold individually

Ceramic radial capacitor 68pf

• Alternative to older type ceramic disc capacitor
• Sold individually

Ceramic radial capacitor 820pf

• Alternative to older type ceramic disc capacitor
• Sold individually

Ceramic radial capacitor 82pf

• Alternative to older type ceramic disc capacitor
• Sold individually

DC-DC mod components for Issue 3 / 3B / 4A 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.

Replacement capacitors for ZX Interface One - Issue 4 PCB

• 3 x 47uf 16v axial capacitors (blue in colour)

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)