Upgrades come in several forms:

1. A double speed upgrade crystal kit
2. An upgraded motherboard

Competitive/Additional upgrades:

1. 4MB memory diy upgrades on your own motherboard - ask Daniel Hertrich at his website.
2. 32MB upgrades - only at Thaddeus or Rundel and very much subject to availability. Contact them directly.

Double speed crystal kits : Crystal plus 8MB PCMCIA boot card with drivers

A double speed upgrade crystal kit contains of a new specially made 32.000 Mhz high-quality crystal, plus a used 8MB PCMCIA ATA memory card containing the double-speed drivers and example config.sys and autoexec.bat files. It has most of the 8MB left for storage.
The original 15.8 MHz crystal has to be unsoldered, and a new 32 Mhz crystal is then soldered in.
Your 200LX will then be slightly over twice as fast as original. 

Technically: cylindrical 3x9mm 32Mhz fundamental mode crystal

8MB card with Double Speed drivers

The kit has a special base price of USD 42.00, which includes worldwide shipping in a bubble envelope.
Additional crystals can be added a USD 20.00 each.

Below is a picture of a motherboard upgraded to double speed showing the position of
the replaced crystal:



Note:  The mentioned 'Double Speed Driver' is necessary to adapt the screen, system clock and serial port to the double speed. In some cases the screen may be visible even without the drivers, but data communication may not work.

You will need a fine-pointed soldering iron and fair soldering skills. When in doubt, consider an upgraded motherboard, as we are not responsible for no longer working boards due to your upgrade efforts.

Motherboards