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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders. |
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Thread Tools |
8th Sep 2018, 10:13 am | #1 |
Octode
Join Date: Feb 2007
Location: Harrow, London, UK.
Posts: 1,493
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RBM Type 55 405/625 pattern generator
Being a little "nice but dim", I couldn't work out how to attach the above schematic as a private message so, for all members who have one of these beasties it is here.
One favour though, should someone have the service manual please let me know. Chris |
9th Sep 2018, 12:29 pm | #2 |
Heptode
Join Date: Dec 2004
Location: Newport, Gwent, UK.
Posts: 962
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Re: RBM Type 55 405/625 pattern generator
I've yet to actually tidy the case or get my one working properly even though I've had it a fair while now.
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10th Sep 2018, 9:37 am | #3 |
Heptode
Join Date: Aug 2009
Location: Carshalton, Surrey, UK.
Posts: 735
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Re: RBM Type 55 405/625 pattern generator
Hi,
this is very interesting, thank you. It looks a " similar " design to a Labgear E5180a. On the Labgear generator I found that some of the resistors had gone high in value.. but there seem to be a couple of other possible faults as well.
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Regards Peter B |
10th Sep 2018, 10:08 am | #4 | |
Dekatron
Join Date: Sep 2003
Location: Near Swindon, North Wiltshire, UK.
Posts: 3,621
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Re: RBM Type 55 405/625 pattern generator
Quote:
I have scans of the above and of the user instructions booklet. PM me with your email address and I send them to you. They are high resolution, so won't be clear if I upload them into this thread. However, I have never come across a service manual, detailing the set-up adjustments for the many preset pots inside. |
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