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1976 Brother Executron Mach II Serial # F633588 1976 Brother Executron Mach II typewriter, Serial # F633588 James Grooms's 1976 Brother Executron Mach II typewriter. 2026-04-04 From the Virtual Typewriter Collection of James Grooms: 1976 Brother Executron Mach II Serial # F633588 When you think every Brother has been discovered. Appears to be another version of the JP-8 4500/4512.

A promising start. The escape is no longer freewheeling. The belt is there and the motor is working. The motor bushings are shot, so the angle of the drive slipped the belt off.

Have a little faith brother. I remounted the motor with some grommet matching. The escape took some heavy cleaning. I shimmed up the return clutch engagement tab with heat shrink tubing. Yes, heat shrink. It works, but I can't speak to the long term durability. Back into the lower body with some more grommet improvising. Despite being externally dirty, it was pretty clean internally.

The Brother marathon is underway. How many Brother's will type out by midnight Sunday?

This is essentially an electrified JP-1. With an MSRP of $200, it wasn't cheap. With sophisticated JP-2s and JP-4s, what was the thinking to go back to this, somewhat crude, carriage shift electric? It makes sense if it were a budget machine. It was certainly the way things would go by the late 70s and early 80s, but not in 71.

1976 Brother Executron Mach II #F633588

Status: My Collection
Hunter: James Grooms (jgrooms)
Created: 04-03-2026 at 09:06AM
Last Edit: 04-04-2026 at 09:04AM

Description Hunter 25 Photos 0 Likes  Find on Ebay #AD  Find on Etsy #AD

Description:

When you think every Brother has been discovered. Appears to be another version of the JP-8 4500/4512.

A promising start. The escape is no longer freewheeling. The belt is there and the motor is working. The motor bushings are shot, so the angle of the drive slipped the belt off.

Have a little faith brother. I remounted the motor with some grommet matching. The escape took some heavy cleaning. I shimmed up the return clutch engagement tab with heat shrink tubing. Yes, heat shrink. It works, but I can't speak to the long term durability. Back into the lower body with some more grommet improvising. Despite being externally dirty, it was pretty clean internally.

The Brother marathon is underway. How many Brother's will type out by midnight Sunday?

This is essentially an electrified JP-1. With an MSRP of $200, it wasn't cheap. With sophisticated JP-2s and JP-4s, what was the thinking to go back to this, somewhat crude, carriage shift electric? It makes sense if it were a budget machine. It was certainly the way things would go by the late 70s and early 80s, but not in 71.

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Hunter: James Grooms (jgrooms)

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Typewriters are the perfect blend of using one's technical skills, history and functional purpose. My goal is type tested machines. My interests are not isolated to any one area. For example, I am a big fan of Smith Corona electrics, mid century electrics and all things Royal.


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