Nothing to do with Michael Jackson – but the well renowned Super Hard On boost! This super small board gives you the option to built it in a 15090a or off board both pots and include the optional master volume control (handy..as this thing gets loud +60db!).

If you don’t already know…the pot crackles when you turn it – you’ve not built it wrong – that’s how the circuit is designed to mimic 60’s recording consoles.  A really simple beginner build, but one that everyone should have!

Controls:

• Crackle
• Volume (optional)

Note: Remember to socket your transistors!

Compares to: Super Hard On by Zvex.