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Bell and Howell GB635 Moviemaster projector and Synchrodek synchroniser

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  • Bell and Howell GB635 Moviemaster projector and Synchrodek synchroniser


    I have a standard 8mm Bell & Howell 635 Moviemaster standard 8mm projector and a Synchrodek tape/film synchroniser for sale on eBay - https://www.ebay.co.uk/itm/256340765893. The starting bid price is £40, but offers are allowed. See

    The Bell & Howell 635 Moviemaster was manufactured in the early 1960s and this particular machine was purchased in 1964. It is in working order, with the following slight defects: the paint finish is peeling off in places, the motor can be sluggish when starting from cold (easily remedied by letting the machine run to warm up and/or flicking the inching knob by hand) and the picture can slip if the bottom loop is lost, e.g. due to a heavy splice.

    The machine was modified to work with a Synchrodek synchroniser in 1969, but this does not affect its operation in any way, as a plug and socket connection and a shorting switch were fitted at the time. It comes with a 400’ reel and a spare lamp.

    The Synchrodek is an electro-mechanical unit for synchronising ciné projectors with reel-to-reel tape recorders. Please note that it is not designed to work with cameras, only projectors, and will only work with reel-to-reel tape recorders, not cassette machines. It is not a pulse or electronic synchroniser, but operates by switching a variable resistor in and out of the power supply to the projector motor. It should therefore work with any projector with a 240V motor. The unit is supplied with tape capstans for synchronising a projector running at 16 fps to a tape recorder running at 33/4 ips or 7½ ips (not tested) and at 33/4 ips using perforated tape and a sprocketed capstan (to achieve lip sync). It is also supplied with several inching knob adapters for the mechanical connection to the projector and a shorting plug as an alternative to the switch fitted to the projector.

    A small mounting screw has become detached inside the Synchrodek, but this does not affect its operation in any way. It is supplied with the unit. I have not attempted to replace it because I do not want to dismantle the unit.

    The projector and synchroniser are offered only as a package. They have been tested as far as possible, but a full trial has not taken place as I do not have a reel-to-reel tape recorder. The items are located in Stratford-upon-Avon, UK.

    I shall do my best to answer any questions.

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