14MHz Crystal

Main system timing crystal for the ZX Spectrum

15 Ohm 1 Watt Resistor

Used at position R34 on Spectrum boards

15 Ohm Resistor 

• Used at R62 - Can easily burn out especially if there has been smoke / problems with TR4/TR5
• Symptoms when bad: Spectrum essentially OK but very dark / no / monochrome video (and unnaffected by trimmers on issue TWOs). Pin 14 of LM1889 (IC14) is a lot lower than 12v.

7805 Voltage Regulator

Replacement 5 volt regulator IC for the Spectrum, (breadbin) Commodore 64, ZX81 etc

Heatsink for issue 2 Spectrum PCB (salvaged)

Includes nut+bolt for attachment.

Heatsink for issue 3 Spectrum PCB (salvaged)

• Includes attachment bolt, shake-proof washer and nut.
• When fitting: Bolt passes through washer, then 7805, then heatsink then PCB. Nut is on PCB's underside.

An original internal reset switch for Spectrum+ (used)

• As used in the Spectrum+ (soldered across capacitor C27 - or at the provided pads on issue 6 motherboards)
• Tested, working.

Replacement foam pads for Spectrum+ legs

A pair of self-adhesive foam pads to replace those found on the Spectrum+ support legs (which often will have crumbled with age)

A pair of 2.2K trimmers (variable resistors)

• As used on Issue TWO Spectrum PCB for adjusting colour output  (the old trimmers can become intermittent and unreliable) 
• Two supplied in this pack.

Replacement DC Jack plug for Spectrum PSU

• A good quality, high current rated replacement for the original PSU jack plug.
• Remember when soldering: The Spectrum PSU is unusual in that the inner pin is negative and the outer barrel is positive. (Getting these reversed will fry your Spectrum!)

Speaker for Issue 2 Spectrum PCB

• Salvaged part in good condition
• Tested: Working fine.
• Important: 200 Ohms - for Issue 2 boards only (from Issue 3 onwards, a 40 Ohm speaker was used)

Spectrum RF TV Modulator UM1233 (UK, PAL)

• Original salvaged part, tested: RF output good.
• Also used in the ZX81 and other computers
• NOTE: To save postage costs (ie: to fit it in a large-letter size box) before dispatch I splay the two mounting lugs outwards - these will need to be straightened again with pliers before fitting.

Case screw for ZX Spectrum (longer type - 12mm - for later rubber key cases)

• New black self-tapping countersunk screw
• This is the slightly longer version (12mm) suitable for later type rubber key Spectrum cases only (if in doubt, choose the shorter type)
• Sold individually

Case screw for Rubber Key ZX Spectrum (Shorter type - 10mm)

• New black self-tapping countersunk screw
• Short type (10mm) suitable for earlier rubber key cases (can also be used in the later cases as long they are not over-tightened).
• Sold individually