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The SK25 and SK99 are discrete Op-Amps which are pin compatible with the API* 2520. They are low noise, high performance DOA's specially developed for audio applications.

The SK501 is a single slot, 500 series compatible case and power supply.

The XT500 is an extension cable which lets you connect a 500 series module to your lunchbox while keeping it outside for easy setting or maintenance.

The PAD500 is a dual balanced line attenuator. It is used after a mic preamp or any effect that you want to drive hot without clipping your converters.

This screwdriver has a recessed head at one end which prevents it from sliding off the trimmer potentiometer head you are adjusting. Very convenient when you are working inside your lunchbox.

This tool is useful to bend the leads of resistors, diodes or inductors to a specified width.
One bender will be automatically included with your first kit module order.
Only order if you want more than one.

Lead-free solder spool, SN99.3 CU0.7, 0.5mm diameter, 50 grams

We've noticed that many of the assembly challenges reported by beginners are caused by inappropriate solder. This spool should eliminate those problems.