Original voltage regulator decal dates

For those who obsess about exactly how their 356 left the factory!
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Brett Johnson
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Original voltage regulator decal dates

#1 Post by Brett Johnson » Sun Apr 14, 2019 12:52 pm

Can those of you with original voltage regulators any year/model 356A - 356C let me know what the date is on the yellow decal on top? Thanks!!!
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Brad Ripley
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Re: Original voltage regulator decal dates

#2 Post by Brad Ripley » Sun Apr 14, 2019 4:56 pm

Only dates I have are these -- date on label / date code of unit
Label Date Reg. Date
RS/UA160/6/24 11.56 1N
RS/UA160/6/24 11.56 8N
RS/UA160/6/24 8.56 ?
RS/UAA200/6/28 7.59 12T
UA 7V 50A 2.69 704

Years ago I used this form but without many reports back -- there wasn't much interest then.
Volt Reg data sheet.pdf
(350.92 KiB) Downloaded 30 times

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Brett Johnson
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Location: Indianapolis

Re: Original voltage regulator decal dates

#3 Post by Brett Johnson » Sun Apr 14, 2019 5:08 pm

This is information I currently have (subject to change/correction/improvement) with input from Brad and James Davies:

Bosch RS/UA 160/6/13 (January 1954 through May 1954), under-dash model with 4 mounting points also used on firewall for at least two months, Bosch in script, undated yellow decal on top on early ones; 4.54 dated yellow decal on later ones
Bosch RS/UA 160/6/15 (May 1954 through August 1956 – also for 547/1), firewall-mounted, 3 mounting points, Bosch in script
Bosch RS/UA 160/6/24 (Sep. 1956 through Sep. 1959) through engine 601001, 85218, 800148, Bosch in block letters, 8.56 or 11.56 dated yellow decal on top
Bosch RS/UA 200/6/23 (October 1959 through Sep. 1962) from engine 601002, 85219, 800149, Bosch in block letters, 7.59 dated yellow decal on top
Bosch RS/UAA 200/6/23 (October 1962 through July 1963), Bosch in block letters
Bosch RS/VA 200/6/3 (August 1963 - on), smaller size, initially black, later ones plated (silver color), 7.59 dated yellow decal on top

Bosch RS/UA 200/12/23 (12 volt)
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jim saunders
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Re: Original voltage regulator decal dates

#4 Post by jim saunders » Mon Apr 15, 2019 7:51 am

Brett, If you're interested, here's the link to a forum page from some time ago, regarding Wherle Voltage Regulators as fitted to very late 12volt cars.
There is a photo in the link.
Hope this is of some help. jim

viewtopic.php?f=13&t=40784

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