Rittenhouse Service & Repair Forum
I have a Rittenhouse Home Intercom, Model No. M7010 that had no audio. A technician said the amplifier was bad and he replaced several transistors in it, but the volume is very weak. He does not know exactly what transistors to use to replace the old ones, and does not have a schematic. Can you provide a schematic, or tell me where I might get one? Thanks, Tom Mitchell
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If you need your Rittenhouse unit tested or repaired,
give us a call at 1-336-969-0110.
We offer free estimates and extended warranties on the work performed.
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Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
Phone: 1-336-969-0110
Recent 312 Comments
I would like to see if I can get this to work. But I don\'t know where to start.
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We are looking for the Rittenhouse C8931R Wireless Chime Receiver.We are an electrical contractor and are working with a customer who loves her chime system but wants to expand it to other areas of her home.Can you point me in a direction to locate one of these?Thank you.
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Sir: Please help me diagnose the problem of my C8204 door chime, andthis morning I heard a noisy sound from the unit. And please give menearest service center here in Chino hills, CalifornialThanks
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I have a RM-2 or a M9401 rittnhouse intercom I need a manual or schematic.any ideas where to locate.Don
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I have a Ritten House RM-2 Radio Intercom in original box with original instruction booklet AND an OR-11 Outdoor Remote Station I am looking to sell.If you or someone you know would be interested, please contact me.
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Need new springs for the hammers. This is an old door bell and it has lasted about 40 years. The new ones are sick. This is the best I have heard and would like to keep it another 40 years.
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I have a model Rittenhouse # E780DC door bell push button. The center plastic button is broken. I need a replacement . I can use the whole assemblyPlease email me as to where I can buy it. Thank you.
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Have model C 8203, 10 volt door bell. Am missing the push button remote that fastens to wall outside the front door. Any suggestions?
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I have an old Rittenhouse door chime that is missing it's tubular bells. Home built in 1932. Chime cover has two decorative brass musical notes and a few horizontal brass what look like pinstripes. After researching, I believe it's 30's vintage and original to the home. I would love i…Purchase or Repair: 
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I get typically one of three chimes to sound when the doorbell is rung, occassionally 2 followed by a buzzing sound. Some of the wires were loose and I tightened them, but still don\'t get all the tones. Any ideas on what to do to get all three chimes to ring?
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I have a Rittenhouse 631/632 doorbell that works ok but the clock motor is noisy. Can I buy a replacement motor for it?
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Due to the worn-weakened spring on the hitting bar which do not pop out from the solenoid hole. Do you sell the spring or the entire solenoid with the hitting bar?
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I purchased a home in Honeoye Falls, NY. It has an RCM 3 intercom that works and I would like to get a manual for it. Is it possible to get instructions for it?
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Ihave a 20 year old rittenhouse intercon that does not and love to get it working again or replaced can you help
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Unit was installed late 1960\'s. Need speakers, knobs and covers to upgrade system.
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Front door button will only ring one time. Side door button will only ring one time. Want front door to ring two times (ding-dong). Don\'t see how to wire it right.
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We have the same system in our home. Did you find any compatible system? Did you replace your system? If so, what system did you use? Thank you. We need to replace everything except the wiring.
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I have a Sears Solid State Am-FM Master Station Radio/Intercom Model 113.35150 built by Emerson Electric. Can you repair this station. Please advise/
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The reception is pretty poor and weak on the volume. Do your know if there is an transisterized replacement receiver that will fit into the 1970\'s model. Thanks, David......
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I’m in need of a sequence timer for the above mentioned Emerson Rittenhouse clock/chimePlease advise on getting 1 of them by email or by calling me at 617/590-3509New or reconditioned
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The clock works fine. Three of the door chimes work, but the fourth and fifth strikers do not work. Do you repair and or have parts to recondition? Thanks, Tedd
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Installed in 1987 when we built the house. Has begun sporadic multiple, single dings, all hours, day and night. I have replaced, back up battery and fuse in motor. Now makes a fairly loud buzzing sound also. Thoughts?
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There is a malfunction in the Rittenhouse C8578-1 135-7351-01 door chime, disrupting the production line. Immediate repair is required to resume operations
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I need to have a bulb replacement performed on a 1980ties vintage bronze doorbell. The spring works fine but light nolonger stays on.Regards, Don
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the Rittenhouse C8578-1 135-7351-01 door chime is down. Need someone to check it out tomorrow. Thanks!
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We installed our Rittenhouse intercom system in 1978 when we built our new home. The speakers look out of date and would like a better main unit. We have 4 outside units, and 7 speakers.Can we purchase new units and still use the same wiring? Would appreciate a response ASAP. Thanks Jim MannP.S. Ple…Purchase or Repair: 
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Eight chime unit {552} repeats sequence continually until switch is disconnected. Switch has been replaced but problem continues----any ideas and is it repairable.....
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I have a old intercom in an apartment building that has door locks, buzzer, and voice. the call and voice speaker does not work. all the other apartments are working good. Is there a replacement for the apartment units. or a upgrade?
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who repairs or work on the old Rittenhouse intercom systems.I would like to do an upgrade. Since I already have holes in the wall from the old Rittenhouse. I would like to upgrade to something along this same size.
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Hello, I have a customer that brought in a door bell unit, the one of theplungers is bent inside. I do not know alot about these things, we work on electric motors. He want to know if he can still get parts for these unit.The model # is c8231. Please inform, I may just send him your way. Thanks for …Purchase or Repair: 
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wonder if I can acquire 1of the 3 boxes that throws the donger to. ring the far right chime of 3
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I have a Rittenhouse door bell model c8355 and the transformer (that is what I think it is) has failed & does nothing but hum. Can I get a new transformer? or can I buy a replacement at the local home depot or Lowes?
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Bell is connected to two doors. The front door works fine. The rear door won't ring at all. Can't tell what might be disconnected. Any ideas would be a big help. Thanks.Ken Bentham
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Tag on door chime unit says:Model 8846RVolt 16Rittenhouse Division Spartan ElectricFayetteville NC 28386The unit has four tubes, it has a circuit board with integrated circuits. The transformer is putting out 18.5 volts, although the unit says 16 volts on transformer and circuit board. I assume the …Purchase or Repair: 
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I\'ve recently come in the possesion of an emerson-rittenhouse model 633 door chime and clock. Somebody must have placed 120volts of power to the 16 volt circiut burning out all the electronics. I need all the electrical components including the hammars and motors. if anyone knows where i can get pa…Purchase or Repair: 
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I have a Rittenhouse model c8229 door bell in my home that is not working. I would like to have it repaired.Thank you,Jolene Gross717-781-3692
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Have Model DS-2 Door Sentry w/ 16v. chime transformer -Rittenhouse #30 or = need local chicagoland technician to trouble-shoot the control box w/ its transformer.-believe transformer is problem.
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I h ave a rittenhouse intercom system that does not work star system 9000 I would love to get it to work again. Can you help me with this thankyou glen
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I have read several threads asking about updating an old Rittenhouse system. I would like to do the same, hopefully avoiding the need to replace drywall, etc., since this system is considerably larger than the Nutone products. I couldn\'t find any responses addressing whether or not there were solut…Purchase or Repair: 
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I purchased this residential unit in 1986. It is now giving a significant hum and does not produce all of its chimes.Does this give you a clue as to repairability?
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I am interested in buying your intercom, I had mine accidentally ripped out during remodelling and need a replacement , does yours work ok?Derek Rust
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