Rectifier solid state

Information relating to the Matchless G2 or AJS Model 14 250cc Lightweight
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Rectifier solid state

Postby davehutch » Wed Aug 13, 2008 1:08 pm

Can you help me by giving me advice on wiring up a new solid state rectifier. Firstly there are four lugs on the new rectifier and only three wires go to the old one. Secondly have I the right one, two lugs are marked, one with a plus sign and one with an AC sign the other two have no sign. This is for my G2 which is 1960 and it is positive earth.
Thanks Dave
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Rectifier solid state

Postby Merlin » Wed Aug 13, 2008 2:41 pm

Look forward to the answer to this one as my Greeves one had 5?
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Merlin.
Chemists do it with test tubes

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Rectifier solid state

Postby Ludwig » Wed Aug 13, 2008 3:15 pm

Hello Dave,
the connectors of the old selenium rectifiers with 4 plates: Ground(plus): mounting stud
DC-output (minus): center lug (between 2. and 3. plate)
AC-input: the two outer lugs between 1. and 2 - 3. and 4. plate
Silion bridges: AC-Input:lug marked AC and lug
on the diagonal opposit side.
Ground: Lug marked plus
DC-output (minus): lug on the diagonal opposit side of lug marked plus.
The body of the rectifier has no connection.
so you need an extra wire from the plus-lug to the frame.
Merlin: no idea with 5 wires, maybe a 3-phase system.
Regards Ludwig

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Rectifier solid state

Postby davehutch » Wed Aug 13, 2008 3:27 pm

Thanks Ludwig I will go and have a go!
----Only a biker knows why a dog sticks his head out of a car window.

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Rectifier solid state

Postby davehutch » Wed Aug 13, 2008 3:54 pm


My rectifier has two outer plates and three inner plates with a wire connected to each of the 3 inner plates. Does the same apply? I think so middle DC- output, two outer ones AC input.
So on new rectifier plus is ground. Ac input is AC and Diagonal opposite plus is Dc output. Which leaves one lug free?
Sorry to be a pain
----Only a biker knows why a dog sticks his head out of a car window.

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Rectifier solid state

Postby davehutch » Wed Aug 13, 2008 4:26 pm

Looking down at the 4 lugs.

Blank Blank

Plus AC
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Rectifier solid state

Postby Don Madden » Wed Aug 13, 2008 5:00 pm

Read Ludviq's reply more carefully--He has given the correct info. Ignore your old rectifier as you will be using the new.

Cheers, Don.

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Rectifier solid state

Postby davehutch » Wed Aug 13, 2008 5:07 pm

Yes see what you mean. Thanks Dom

Going to do it now
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Rectifier solid state

Postby davehutch » Wed Aug 13, 2008 5:55 pm

rectifier Fitted Thanks Lads !
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