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Can you identify this regulator?
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captain bobo



Joined: 02 Feb 2012
Posts: 43
Location: South West Cambs
PostPosted: Fri Nov 29, 2013 11:07 pm    Post subject: Can you identify this regulator? Reply with quote
A contact of mine also has a pre war Daimler that he is rebuilding. It has a weird non-standard Lucas regulator that we can't identify & I wondered if anyone in this forum can shed any light and help us identify it.

It has 2 bobbins (so we assume 1 for cut out and 1 for dynamo regulator). Printed on the Bakelite body is the following: Lucas 12 RH L6 ER. It is similar in shape to a Lucas CFR type box.

It has 6 terminals labelled H, L, S, Aux, B, E. We've worked out most of the terminal functions and hazarded a guess at the internal circuitry but we're puzzled by the lack of F and D terminal for the dynamo.

We wondered if it might be some military product or perhaps a unit made for a boat or something like that.

Any comments or suggestions would be most welcome.

Best wishes, Dave B
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1937 Daimler 15 Mulliner Sports Saloon & 1969 Daimler V8 250 Saloon
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Bugly



Joined: 25 Jan 2009
Posts: 65
Location: Darwin, Australia
PostPosted: Wed Jan 01, 2014 5:12 am    Post subject: Reply with quote
Captain Bobo - Happy New Year!! Don't quote me, but the terminal descriptions of H, L, S, Aux, B, E make the unit sound more like a headlight relay (High Beam, Low Beam, Side/Tail, Auxiliary, Battery, Earth). BIDSTBC!! Very Happy
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captain bobo



Joined: 02 Feb 2012
Posts: 43
Location: South West Cambs
PostPosted: Wed Jan 01, 2014 1:23 pm    Post subject: Reply with quote
Happy new year to you too! I like your thinking vis-a-vis the terminals. Regrettably the previous owner had removed the box before my friend acquired the car, so we don't know how it was wired in.

I'll recommend that he tries linking it up per your suggestion and see what happens.

Best wishes, Dave B
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1937 Daimler 15 Mulliner Sports Saloon & 1969 Daimler V8 250 Saloon
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Bugly



Joined: 25 Jan 2009
Posts: 65
Location: Darwin, Australia
PostPosted: Thu Jan 02, 2014 1:30 am    Post subject: Reply with quote
captain bobo wrote:
Happy new year to you too! I like your thinking vis-a-vis the terminals. Regrettably the previous owner had removed the box before my friend acquired the car, so we don't know how it was wired in.

I'll recommend that he tries linking it up per your suggestion and see what happens.

Best wishes, Dave B

Dave, these same terminal designations are found on the rear of the old Lucas ignition switches. Its possible (no guarantees though Confused ) that the wiring from the ignition switch extends to the relay, and it is the relay that actually activates the lights. Need to confirm it with a wiring diagram methinks!! Smile
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