Alan,
I hate to say this, but ...
If you don't know what brand your alternator is, how do you know the regulator is the same brand???
On 2,7 and earlier engines ... Bosch alternators had 14 mm shaft threads, and Marchal/Motorola alternators had 16 mm shaft threads.
Mixed brands of alternators and regulators DO NOT WORK!!!
Resolve the brand issue, and be prepared to do some additional troubleshooting with a digital multimeter ...
__________________
Warren Hall, Jr.
1973 911S Targa ... 'Annie'
1968 340S Barracuda ... 'Rolling Thunder'
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