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

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

Mike Murray
Telechron Telechron "B"   "M-1" "M-31" & "M-38"  Clock Rotor.

Copyright © 1995-2024 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.

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Telechron "B" "M-1" "M-31" & "M-38" 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.   The "B-2" M-1 is the most difficult rotor to work on, the M-31's is the original "B-3" and "B-2" M-38 are extremely hard to find and cost the same to rebuild but $250.00 more than other "B" rotors for replacement. The M-1 is the original "B-2" rotor and very rare.   These rotors have a hole center in order for the long shaft second hand to be inserted. The M-31 is the highest torque "B" rotor ever build and why it was used in most electric Grandfather clock and many chiming mantel clocks. The M-38 was the most replaced "B-2" rotor and extremely rare. All "B-2" M-1, "B-3" M-31, & "B-2" M-38 rotors cost $150.00 to rebuild, plus $20.00 priority mail (Canada is $45.00) and have a 2-year warranty, which brings your total cost to $170.00 assuming you send the old rotor for rebuilding at time of payment. Because of the rarity, I must have the exact M-1, M-31, or M-38 rotor or add $250.00. Here I'd take a used rotor from inventory and overhaul it for a total of $400.00 plus shipping. My turnaround is 4 to 6 weeks for motor service, 8 to 12 months if the clock is sent with the motor, or if the movement is overhauled. All checks must be made out to Mike Murray because I gave up my business checking. I no longer offer expedited service. 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-3 M-31-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 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 bulb-ed 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. One thing you can do before you send in the motor (coil, field, & rotor) is to take a Multimeter or Volt/Ohm meter, these are less than $20.00 at any hardware store, and with no current on the clock, set the meter to Ohms and touch the two leads to the end of the wires or the posts on the coil where the wires connect and see if you get a reading. Just about any reading is a good one.   But if you get no reading what-so-ever then the motor's coil is dead and you'll need a replacement coil. 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.

All checks must be made out to Mike Murray because I gave up my business checking. 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.

My main Web site is located at Main FTP site is located at
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 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 Main FTP site is located at 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!

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Copyright © 1995-2024 Michael P. Murray & Mike's Clock Clinic

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Created in December of 1995 and last updated January 02, 2024.