Mockingboard

The Mockingboard is a sound card for the Apple II/II+/IIe/IIgs built by Sweet Micro Systems. In 2005 ReActiveMicro (then called GSE-Reactive) was the first company to reproduced a clone of the board called "Mockingboard v1".

History

The Mockingboard v1 was the first project ReActiveMicro started with in September 2005. After a bit of market research there seemed be enough demand to warrant this project. The board itself also seemed like a good candidate since it was a simple design, 2 layer PCB, and used standard parts which were still easily sourceable. Henry then found the board on eBay and won the auction.

Henry had been discussing possible project ideas with Bill Garber. Bill offered to help show Henry how to use ExpressPCB CAD software, which is what most beginner hobbyists used back in early and mid 2000's.

Henry disassembled the board and noted what all the parts were. Bill was involved with starting the CAD layout, however he wasn't able to finish, so Henry took over and completed the project. Bill also helped with updating the deign from an RCA Audio Cable to a 3.5mm Jack. He is also credited with the concept to add the 3.5mm Jack to the rear side of the IIe, which allows a more simple and shorter cable connection. Henry is credited with adding the II speaker input jack circuit to the board.

Different Versions of the Cloned Mockingboard

Mockingboard v1 from GSE-Reactive

In late 2005 ReActiveMicro (then called GSE-Reactive) produced a clone of the board called "Mockingboard v1". ReActiveMicro sold the Mockingboard v1 in fully assembled, or in user-assessable "kit" form. There were about 50 units produced and sold. The silkscreen shows "GSE-Reactive.com" on the lower front.

Mockingboard v1 from GSE-Reactive

In late 2010 Tom Arnold of philosophyofsound.com approached Henry about making a new run of boards. Tom used the ReActiveMicro design but relabled it as "Mockingboard v1a". About 40 units were produced. The silkscreen shows "ReactiveMicro.com" on the lower front. Ulitmate-Micro helped distribute these boards via the UltimateApple2.com Store. Tom also sold some units himself.

Mockingboard v1 from GSE-Reactive

Although still called "Mockingboard v1", in 2015 Tom had another batch of boards made, however this later run has the "UM" logo on it and shows "UltimateApple2.com" and "ReActiveMicro.com" on the lower front. About 30 units were produced.

Known Errors In The v1 And v1a Designs

In 2016 Chris Torrance discovered that the 3.5mm Audio Jack was wired backwards. This is evident on the GarberStreet schematic (upper right, linked below). Also the Apple II Speaker Input circuit Henry designed was of a lower lever than the Mockingboard generated sound effects.

Chris has a few videos that can be found on YouTube addressing these issues. Tom Arnold has devised a work-around mod as well that Chris demonstrates in his video.

The Mockingboard Review: Assembly Lines #22: Mockingboard v1a from UltimateMicro

The Mockingboard Reversed Channel Fix: Assembly Lines #23: Mockingboard v1a Mods #1

Documentation, Files, and Software

The Mockingboard Manual

The Mockingboard Manual

http://reactivemicro.com/images/appleii.gif

http://reactivemicro.com/images/appleii.gif

http://www.downloads.reactivemicro.com/Public/Apple%20II%20Items/Hardware/Mockingboard_A/ http://www.downloads.reactivemicro.com/Public/Apple%20II%20Items/Hardware/Mockingboard_D/ http://www.downloads.reactivemicro.com/Public/Apple%20II%20Items/Hardware/Mockingboard_M/ http://www.downloads.reactivemicro.com/Public/Apple%20II%20Items/Hardware/Mockingboard_Sound-Speech_I/ http://www.downloads.reactivemicro.com/Public/Apple%20II%20Items/Hardware/Mockingboard_v1/