8mm Forum: Bell & Howell 621

This is topic Bell & Howell 621 - 110 volts in forum 9.5mm for sale/trade/wanted at 8mm Forum.

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Posted by William J. Chrisp (Member # 6868) on April 14, 2019, 10:10 AM:

Hi,

I have just acquired this machine as it was about to be thrown on the tip, ouch. I have always wanted this model and have spent the past few days lovingly restoring it. Today I powered it up and apart from losing the lower loop? it appeared to be running fine with a good well lit steady picture, albeit the machine seems to be running too fast and the sound silent switch makes no difference to the film speed. Anyway now to the amplifier, this was not working and I found out that the fuse was broken in it's socket, that sorted I found that the exciter lamp was but a very dim glow. Removing the amplifier I was surprised to see that the only connection from the projector to the amp was the power supply to the exciter lamp, so being very confused I wonder how the signal from the photo cell gets to the amplifier???

Please help someone. Bill

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