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
Jessica:I have the same model door chime, with the same problem. How did u make out with yours? Do you know any of the history of this chime. From what I can surmise, it was produced after WW2 and that would fit as it was in my parents house when i was born in 1954. I have a friend that is an electr…Purchase or Repair: 
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I have a clock and doorchimes door bell model RC-633.I would like to get relacement part for the door bell part, the clock is still working.Can you help me
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I have 2 Rittenhouse intercom speakers that need to be replaced. They both measure 9 1/4\" long. 6 1/4\" wide and 3 1/2\". Do yo have suitable replacements? If so, how much are they? Price of each unit, tax if aplicable and shipping charges for a total net price.Thanks in advance for your prompt rep…Purchase or Repair: 
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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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I would like to install my RC633 which I removed from my old house. Can you send me instructions? Thank you.
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Hello! Do you have any parts for Rittenhouse (Emerson) All Transistor Radio-Intercom System, Model RM-1 (AM radio) or RM-2 (AM/FM radio)? Our system dates from the 1960\'s--still going strong. But I need knobs and especially the instruction manual because I don\'t know how to answer and use the exte…Purchase or Repair: 
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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 have a Rittenhouse intercom system and am unsure of the model #. It was installed in the 70\'s. I am painting my condo and would like to replace the ivory cover with a white cover. How would I go about purchasing just a cover? Thank you
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I have a rittenhouse westminister door chime master model 631 and 632 that I removed from my family home when it was being sold. I have everything except the Rittenhouse no. 42 transformer, which is need before the electrician can install it in my home. Do you have this transformer or know where I c…Purchase or Repair: 
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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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Model# S7808. The detector has been making loud clicks, usually two at a time. What does this mean? Replace it or cleaning. Please help very annoying.
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Moved in 3 years ago the AM/FM worked but nothing else. Wondering if I could get an estimate
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I own a late 60\'s Emerson Rittenhouse Model RC633 door bell Chime.The clock works fine but the door bell doesn\'t.I believe there is a problem with the motor.Can I have this unit repaired and approximately the cost?
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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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My rittenhouse chime is about 15 years old and I would like to get it repair. I would like to know who can repairs it.
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Buying a condo with an inoperative Rittenhouse Model 7021 intercom system. Was constructed in late 70s. Is the technology so out of date that it is not worth restoring? Should I consider restoring the unit, about how much am I looking at? Is there a dealer here in AR, or do I have to ship it to you …Purchase or Repair: 
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We\'ve got an old aprox. 30years old unit. signal fades in and out. Best to try and repair or do you sell new/updated maybe with cd or mp3 imputs? Also need a external outdoor speaker/intercom box. Has the 5 plug cupling. thanks,Paul
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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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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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Unit was installed late 1960\'s. Need speakers, knobs and covers to upgrade system.
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I can make new bells for this chime. See my sites: doorbellmuseum.org and electrachime.comBestRobert
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I have an Emerson Door Bell C 8204 and it is not working. Need a response to this E- mail please.
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need troubleshooting info on rittenhouse model m7900 amp ser# 3060-0074-2091. also, price and availability of parts as i am working on an intercom system in a 8 unit condo.
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I have a Rittenhouse Emerson Elec Model C8326 (perhaps 1960's) that has stopped working today. The chimes and housing seem okay, but the mechanism and bell button are old and worn out. Do you have replacement parts - and at what cost?
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static, fade in and out radio. intercom doesn\'t work but don\'t care about that just want the fm on radio to work more consistently
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My Rittenhouse Master unit has failed. Is there a replacement unit I can purchase?
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Our old doorbell cover on our doors is broken, how and where can we find new or different( maybe clear plastic cover) for the doorbell Thank you
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This is a two unit intercom and door opener for apartments. Presently, it has current but buzzes the door open without pushing the switch, and has no voice tones.
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I am looking for the cover that is a black plastic 8 3/8\" wide, 5 1/2\" high, and 2 1/8\" deep. Any idea where I can find a suitable replacement? Thanks.
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Do you know of anyone in Central or East Central Ohio who can repair a Rittenhouse electric door chime? It has four, short brass tubes and chimes like The Westminister chimes. Thank you.
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My model 552 is not working. Licensed Electrician checked it out and it need replacement parts. I want to keep actual doorbell, because of sentimental reasons.
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We are also electrical contractor company(Towers Electrical Serv. Inc)We are looking for a model C8931 R Chimer Receiver also a sender unit if possible.We cannot find any info on this item it was made ty Rittenhouse Fayettevilole, nc. 28302
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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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We are experiencing a critical issue with the Rittenhouse C8578-1 135-7351-01 door chime production line. The key component responsible for the chime sound is malfunctioning, leading to a complete halt in production. Immediate repair service is required to resume operations swiftly. Please address t…Purchase or Repair: 
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I recently moved into a house that has the Rittenhouse All Transistor RCM-1 system in every room. It\'s obvious this system has not worked in a few years, but I want to repair it and keep it with the time of the home. A newer system would take away from it\'s appeal. Is there anyone in the Tulsa, OK…Purchase or Repair: 
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I have a very old doorbell/ clock combination. The Model # is 450. The chimes work but not the clock. Since it is installed into the wall is there one the will replace using the same insert?
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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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I have a Master Model 631 & 632, The clock stop working. its showing the red dot on the face of the clock that indicates power failure. The chimes still work fine with no issue. Can you provide instruction on how to test and/or repair. Thank youEddie
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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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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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—> Purchase or Repair:
I have a Rittenhouse 550, 551 doorbell chime.The unit itself works fine. What I am missing (which someone was supposed to nor trash) is the transformer that sequences the chimes. Do you have a transformer for this that will work? And if so, obviously, what would one cost?Thank you for taking the tim…Purchase or Repair: 
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