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\'m working on a unit which has been in the family for years.Emerson- Rittenhouse RC 633, 16 voltOne of the solenoid/hammers don\'t work. Seems that the hammer is jammed in the tube. I\'d like to replace the solenoid. How may I order another one.Ron 305 803-5441
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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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Please contact me about the cover of the door chime Model c8204.We lost it during repainting the wall when we moved in 2 years ago.ThanksBrandon
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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 would like to know if spare components are still available? eg transistors and LM283T 5 pin audio amp or regulator? Or is there a replacement UNIT and what is the cost for a compatible unit.
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HiI have the above chime box and wish to re assemble it. I took it down for decorating purposes.There is a black/dark blue wire, a yellow wire and a red wire. There is trans, front and rear. My question is what wire goes with what?Many thanks Michael Donnelly
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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 prov…Purchase or Repair: 
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I am looking for a remote button for this system.Would possibly trade a receiver unit as I have extra.
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we have an old set of chimes which were taken from our hallway after a fire, now they require repair, model number is not visible, however, it is a four long pole, with 4 or 8 note feature.would love to repair this
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Label states Emerson Model S7671Rittenhouse DivisionArtolier lighting & soundEmerson Electric CoHoneoye Falls, New York 14472Second Label statesFire Alarm DeviceSingle and/or Multiple stationHome built in early 70\'s and have not found any information per this model and/ or type of device. If you ha…Purchase or Repair: 
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The Rittenhouse C8578-1 135-7351-01 is a door chime unit that is currently not working. That's the information I have so far.
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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 emerson rittenhouse rcm 4 main unit with IR6 speakers throughout a house i purchased and am interested in upgrading the entire system. Is there a replacement system where it can be changed out?It will be a few months before I am ready to do it, but am trying to look at options and replaceme…Purchase or Repair: 
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Could you please direct me as to where I may be able to obtain a circuit diagram for a rittenhouse installed in the 1980?Many thanksJoe
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Similiar issue, my doorbell kept sticking. So I replaced the sticky button but now my springs inside the bell housing seem to be sprung and unable to move the plunger the full range to ring or retract.
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I am looking for a wiring diagram for a Rittenhouse, Spartan Electric, Fayettevile NC C8845 unit which is 30 to 35 years old. It seems to be either able to use two D cells or 16V transformer but I am got sure how to wire it up. Any ideas? Thanks.
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This is an old system I would like to replace. Does the wire plugs have to be replaced. I would like sm=omthing that will be compatable with the wire plugs. Do you have any suggestionsThank 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 TOOK THE CLOCK TO A ANTIQUE DEALER HE TOOK THE MOTOR OUT AND REPLACED IT WITH A BATTERY UNIT. I AM LOOKING TO REPLACE IT BACK WITH THE ORIGINAL MOTOR.
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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 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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Years ago lightening hit house the chime stoped working the unit is in the kitchen and of coarse the door bell at the front door to push with finger ..doesnt work anymore can this be fixed ??/
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I have a Rittenhouse intercom system that was installed in the 60\'s that worked fine until recently. Everything still works fine except the main intercom/control unit. Is there a replacement unit I can buy that I can use with all my existing speakers, etc throughout the house? Even a unit that only…Purchase or Repair: 
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i would like to have an updated model the one i have was installed in 1977 it makes noise, drifts off stations all controls are noisey and sound is garbled. can you tell me where to get help.
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I AM LOOKING FOR A DOOR CHIME FOR MY BUSINESS THAT WHEN SOMEONE ENTERS THE FRONT DOOR THAT I WILL BE ABLE TO HEAR THE CHIME IN OTHER AREAS OF MY BUILDING AS WELL. I NEED SOMETHING THAT WILL HAVE A LOUD CHIME BECAUSE MY BUILDING HAS MACHINERY RUNNING ALL THE TIME. CAN YOU SEND ME SOME INFORMATION. TH…Purchase or Repair: 
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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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HAD LIGHTNING STRIKE AND WOULD LIKE TO REPLACE IF YOU HAVE A RETRO UNIT TO REPLACE IT THANK YOU
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I\'M A ROOFING CONTRACTOR IN HOUSTON. WHILE WORKING ON A PROJECT WE BROKE SOME INTERCOM SPEAKER BOXES AND I RPLACE THEM. I WOULD LIKE TO IF SELL THESE INTERCOM SPEAKERS.
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I am searching for a User Manual for the Rittenhouse M9041 AM/FM Radio-Intercom system. The unit is original to the house built in 1982. I have found a tech manual with schematics but now need to locate a User Manual. Any suggestions would be appreciated. Thanks.
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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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I moved this door chime/clock when it was working from one home to another. The electrician that hooked it up did not do it correctly and I have no schematic for how it should be wired. I know it needs three wires but not sure on which of the 7 screws they get wired to. They do not indicate Com or T…Purchase or Repair: 
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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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Would like to know if there is a replacement for this unit or where I can find a replacement knob for the Talk Listen stalk.
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we bought this house with installed system. not working. power source not found.
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I bought a house built in 1950 with an old Rittenhouse door chime, Model #365. I have no idea if it can be repaired. I don\'t have the front door button. The inner workings are very dirty. Do you think it\'s worth sending to you? Thanks, Kathie
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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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