Back to Mike's Clock Clinic's Telechron Rotor Web Page

Mike Murray

Telechron "B" Clock Rotors.

Copyright © 1995-2025 Michael P. Murray & Mike's Clock Clinic

Mike Murray  Memberships: NAWCC
P. O. Box 562
1151 D Street
Fossil, OR  97830-0562
The P.O. Box is for the USPS only and should be removed for all other carriers.

Please do NOT call or E-mail unless you have read this entire Web page

E-mail address: Mike@telechron.us (Preferred contact method)


Telechron "B" Clock Rotors







    My business is rebuilding your original rotor.  The type "B" is the
larger rotor which generally turns at the rate of 1 R.P.M.

    There are 3 basic types of "B" rotors.  The first is a "B-2" rotor
and that has the lowest torque and is a 2-watt rotor designed to take a 2-watt coil.
The next is the most common and that is the "B-3" rotor and that is the highest
torque of the "B" rotors and is a 4-watt rotor designed to take a 4-watt coil.  This
is the most used rotor and it is in most chiming mantel and grandfather clocks.  The last
is the "B-13" and it is a 4-watt rotor designed to take a 4-watt coil and was first
manufactured in the 1960's and was made as a cheap replacement for both the "B-2"
and "B-3" rotors.  It was never placed into a clock movement by any manufacturer, so it
cannot be an originally installed part.

    For a list of most 60 cycle rotors please see this link.


    All "B" rotors cost $150.00 plus $20.00 priority mail (Canada is $40.00)
and have a 2-year warranty, which brings your total cost to $170.00.  The exceptions
are the Telechron's M-1, M-31 & M-38 Rotors and Telechron rotors turning
at either 30 or 60 RPM's.  The overhaul price
for these exceptions are the same but the replacement costs are higher, if needed.


    For an extra $150.00, I can replace your aluminum cased "B-13" rotor with
an older nickel cased "B-3" rotor.   The "B-3" has copper plates and will
generally last 2 to 3 times longer then their aluminum counter parts ($320.00 total).

B-3-rotor rebuilding $150.00
Taking a "B-3" from inventory $150.00
Return Priority Mail shipping (rotor only) $20.00

Total $320.00

    I must have the old rotor or add $150.00.  Aluminum rotors will NOT
qualify as an exchange for their copper and nickel counterparts.  Typically aluminum
rotors have a M # of 3300 or higher.

    The aluminum "B-13" rotor can be rebuilt.   The process takes about 6
to 8 weeks and the cost on the "B-13" is $150.00 plus $20.00 priority mail
(Canada is $40.00), which brings your total cost to $170.00.  It too would have a 2-year
warranty.  Typically aluminum rotors have a M # of 3300 or higher. The "B-13"
aluminum rotor can be ordered without having to send in your old one but it would be nice
if you have the time.


    My turnaround is 6 to 8 weeks for rotor service, 8 to 12 months if the clock is sent
with the rotor, or if the movement is overhauled.

    All rotor only service requires prepayment made out to Mike Murray, unless you don't
mind waiting a year.

    I no longer offer expedited service.


    All rebuilt's from whatever source, will have some noise.  Rebuilt's will be
significantly quieter but all will carry some noise.

    The one disadvantage of an aluminum cased rotor is that Telechron used fiber board
plates and then coated them (dipped) in phenolic resin whereas the pre-aluminum
rotors used copper plates.  Three of the seven wheels, in the "B-13" rotor, are also
phenolic resin and that material was used to reduce noise of the wheels meshing
but actually these plates increased the overall noise of the rotor.   Phenolic
dipped plates will never last as long as copper and the material was used to reduce
overall production costs but should last for years.   It is because of these plates
that the noise level of any rebuilt aluminum rotor will be greater than the copper
plates of original rotors.   So I strongly suggest you do NOT use an aluminum rotor
for clocks located in your sleeping area.

    There is usually a saw like 2 blade system in the clock to secure the chime rods
for shipping.  Please be sure that is engaged for safe shipping.  If they are gone or
not there then I use a piece of small bubbled bubble wrap and fold it over once and
then weave it in and out of the chime rods.  A one inch wide  strip is all that is needed.
This is easy to remove and prevents the chime rods of rattling during shipping and
breaking.  If one or more breaks then that adds $150.00 to install a set of tuned rods
which has to be done because replacing only one or two rods throws the whole
tune out of pitch.

    If you want to send in the clock for motor or rotor replacement, please be advised that
your costs will increase by $205.00 with everything else staying the same.   The increase
covers the increase in return shipping and insurance and includes my labor charge of
$150.00 for the replacement service.  I can ship at that price for clocks up to 22"
long ($375.00 total).

B-2 or B-3 or B-13-rotor rebuilding $150.00   (A 2-year warranty)
Labor on movement $150.00   (No warranty because it is cleaned and not overhauled)
Shipping via UPS ground $75.00

Total $375.00

    All aluminum "B-13" rotors are replacement rotors.  Meaning that they were
manufactured after your clock was made in order to save production costs on replacements.

    All rebuild rotors carry a 2-year warranty.

   I'll not ship the rotor until I received payment.  I accept personal checks,
certified checks, or company checks for payment but repeat customers may use
personal checks.   Normally shipping takes place one week or so after I receive
payment and thanks!  If you use a personal check then please allow 10 days
before shipping to allow the check to clear.



    I have a quick guide for extraction and installation of the "B" rotor.  Click on the
 Quick guide to the "B"rotor.


        For return shipping I use USPS for all shipping.  If you want
to use another carrier then you will have to arrange everything for shipping,
meaning I hand the box to the driver, get a receipt and nothing else.


    I prefer payment via check made out to Mike Murray.

    I would like payment by money order, certified check, personal check,
business check, or through Pay Pal or Square, which is the only way I take
credit cards.  I do prefer a check over Pay Pal or Square because Pay Pal and
Square take 4%.

    The 4% is added to the total bill if you use a credit card.

    With either Pay Pal or Square, I will send an invoice to your E-mail
address.  Here you are dealing directly with either service and not me.

    You do not have to be a member of Pay Pal or Square in order to issue a payment but
the 4% will be added to your total bill.

	All of the added fees are exactly what either service charges me for taking your
credit card.

I teach rotor rebuilding and you can check it out at: 
My Rotor Rebuilding Course
 


My main Web site is located at http://www.atmosman.com/
Main FTP site is located at http://www.atmosman.com/earthpdf.html

Respectfully,


Michael P. Murray

Memberships Include:

National Association of Watch & Clock Collectors
An Internet private E-mailing list called Clocksmiths
N.A.W.C.C. National 400-day Clock Chapter # 168

            A service from,   E-mail address: Mike@telechron.us
             Mike Murray         Founder of Clocksmiths

A specialist in Atmos and 400-day clock repair.
Also, I overhaul most plug in electric clocks.
In continuous service since 04/01/1982.

Mike's Clock Clinic  Memberships: Clocksmiths & NAWCC

P. O. Box 562
1151 D Street
Fossil, OR  97830-0562

Phone: 541-370-2440

My main Web site is located at http://www.atmosman.com/
Main FTP site is located at http://www.atmosman.com/earthpdf.html

Memberships: Clocksmiths & NAWCC
N.A.W.C.C. International 400-day Clock Chapter # 168
Published in Chapter 168's "Torsion Times"
Published in AWCI's "Horological Times"
Formally AWCI's 400-day (Anniversary) clock Bench Course Instructor!

Copyright © 1995-2025 Michael P. Murray & Mike's Clock Clinic

Created in December of 1995 and last updated January 02, 2025.