Heavy Sixer Case Variations

[Heavy Sixer Case Variations]

I have several heavy sixers.  I have one of them that has the channel hole in the case but there is no switch built onto the board.  I just assumed this to be when Atari was transitioning hardware and changed the case before the boards were complete.  However, does anyone know if this was by design or if this could be a sign of the unit being repaired.  All of the internals of this unit have early 1977 date codes on the board and RF unit.  I also see on the serial number database list in the forums that this does not appear to be that uncommon.... Why... Seems odd.  Anyone out there have the reasoning for this or first hand knowledge?

 

Thanks,

bdewees

[THE OFFICIAL ATARI 2600 HEAVY 6-SWITCH LIST]

I have 4 Heavy Sixers

Unit 4)  (Very Early Sears Tele-Games Unit)

NTSC/PAL/Atari/Special: Sears / NTSC
Serial # 58707 R
MFG Location Sunnyvale,CA
(Owner/AA Member), (Location= City, State, Country): bdewees, OH, USA
A/B Channel Slot (Yes/No): no
A/B Channel Switch (Yes/No):no
Functional (Yes/No): Yes

 

Almost new in box and all packing.

[THE OFFICIAL ATARI 2600 HEAVY 6-SWITCH LIST]

I have 4 Heavy Sixers

Unit 3)

NTSC/PAL/Atari/Special: NTSC
Serial # 91725 H
MFG Location Sunnyvale,CA
(Owner/AA Member), (Location= City, State, Country): bdewees, OH, USA
A/B Channel Slot (Yes/No): yes
A/B Channel Switch (Yes/No):no
Functional (Yes/No): Yes

 

This is one has the A/B Channel slot in the case but does not have a channel switch inside on the board.  From all the build dates this seems right.  Not sure if this is from factory or possible repair.  Bought this one off eBay so there is no past data.

[THE OFFICIAL ATARI 2600 HEAVY 6-SWITCH LIST]

I have 4 Heavy Sixers

Unit 2)

NTSC/PAL/Atari/Special: NTSC
Serial # 32888 F
MFG Location Sunnyvale,CA
(Owner/AA Member), (Location= City, State, Country): bdewees, OH, USA
A/B Channel Slot (Yes/No): no
A/B Channel Switch (Yes/No):no
Functional (Yes/No): Yes

 

Near mint with no mods.

[THE OFFICIAL ATARI 2600 HEAVY 6-SWITCH LIST]

I have 4 Heavy Sixers

Unit 1)

NTSC/PAL/Atari/Special: NTSC
Serial # 69559 E
MFG Location Sunnyvale,CA
(Owner/AA Member), (Location= City, State, Country): bdewees, OH, USA
A/B Channel Slot (Yes/No): no
A/B Channel Switch (Yes/No):no
Functional (Yes/No): Yes

 

In original Chess piece Box from 1977 all original with no mods.