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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β€” Posted by Tom Mitchell on 2005-11-30

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Recent 312 Comments

#Rittenhouse by Maryellen Boudria on 2009-07-19 19:15
I have a Rittenhouse chime Model #410 with it\'s companion two chime on second floor of our 1927 home. The door bell chime works however we are not getting all chimes to work. Only two tones downstairs. Can this be repaired? Please advise.Also, can you tell me how old this model of Rittenhouse is?Ma…Purchase or Repair: Ticket Image...
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#Rittenhouse by Bil Hoag on 2015-11-11 17:58
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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#Rittenhouse by DANNY on 2010-05-06 16:48
I AM A ELECTRICAL CONTRACTOR AND HAVE BEEN TOLD THAT NUTONE WILL WORK USING EXISTING WIRING THE PROBLEM IS NUTONE WILL NOT WARRANTY IF YOU DO NOT USE NUTONE WIRE, BUT THEY DO HAVE A 30 DAY RETURN POLICY TRY THE SYSTEM IF IT DOES NOT WORK TAKE IT BACK ASAP

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#Rittenhouse by George Buffington on 2006-06-01 00:00
Can the Rittenhouse C8203 doorbell be repaired or purchased as a replacement? I'm trying to check this off my to-do list. Thank you!

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#Rittenhouse by matt arendt on 2009-02-08 18:51
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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#Rittenhouse by Howard Hendricks on 2009-07-12 04:29
I have a Rittenhouse Chine door bell with four long poles. The model number is c8578-1, The unit will not work, I noticed two bad diodes, and removed them I am having problems locating the right ones. Is this something you can fix?

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#Rittenhouse by Norm Negus on 2010-12-02 00:14
Hello I have a Artolier Lighting and Sound Emerson Electric Co. Model C8535 the springs need replacing can you please Help thanks Norm

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#Rittenhouse by IRA G NICHOLS on 2025-07-08 20:58
I have a rittenhouse model c8204 that stopped working, had been working for years. New outside doorbell installed my be the cause.Can I test the bell by shorting the two screw terminals on the rittenhouse inside unit.

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#Rittenhouse by curtis gast on 2015-03-16 02:25
new home to me. system not working. any help would be great. thanks

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#Rittenhouse by Irene Shefts on 2018-04-25 21:04
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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#Rittenhouse by mccammond99@att.net on 2016-03-19 17:03
is there anyway i could get another one of these door bells?

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#Rittenhouse by Colleen Wilkowski on 2011-04-28 15:24
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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#Rittenhouse by joe Delle Dinne on 2011-12-20 00:25
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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#Rittenhouse by Ken Bentham on 2017-04-25 21:05
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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#Rittenhouse by charles dellasala on 2009-08-08 20:37
7th chime does not work can plunger be lubed if so with what

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#Rittenhouse by DAVE ROSS on 2007-05-18 16:21
EVERYTHING WORKS FIND..JUST WANT TO UPDATE OLD UNIT

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#Rittenhouse by Jessica Memmott on 2010-07-22 18:45
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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#Rittenhouse by Ron Abrams on 2009-02-18 02:03
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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#Rittenhouse by k. chang on 2009-06-17 02:34
how do we get this old door chime to work again?we\'re already replacing the batteries, what else should we do?thanks

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#Rittenhouse by GUY DALFINO on 2013-01-24 17:30
I THINK I NEED A TRANSFORMER CLOCK WLL NOT RUN TX IN ADVANCE gUY

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#Rittenhouse by David Bergeron on 2017-10-23 07:12
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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#Rittenhouse by Eric Hoffman on 2007-12-23 04:40
I have just recently purchased a house that has a Rittenhouse Model 7300 Intercom system that does not work. I am trying to find a schematic for it. I know that it is an old system, but would like to use it to monitor my young children. Any help would be appreciated.Thank you.Eric Hoffmanβ€”> …Purchase or Repair: Ticket Image...
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#Rittenhouse by sonny sadler on 2011-11-21 16:12
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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#Rittenhouse by A.L. Richard on 2010-08-09 13:32
My home was built in 1965 with the same Rittenhouse intercom/radio system that doesn\'t work anymore. I would like to upggrade with intercom/radio/ satellite radio system can you do the work? What would be the estimated cost?

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#Rittenhouse by bill morrison on 2006-05-03 03:40
we have an old rittenhouse intercom system. the units look old but still works fairly well. need information on how to update system look without replacing entire system. we\'re remodeling in some areas and would like to check out updating units. don\'t have specs on the system. not sure ofβ€”> …Purchase or Repair: Ticket Image...
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#Rittenhouse by Bob on 2007-04-07 23:14
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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#Rittenhouse by scott grim on 2009-07-22 11:43
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: Ticket Image...
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#Rittenhouse by craig cipriani on 2011-11-03 15:22
I hav a door chime and clock rittenhouse model 631 and 632 i need a wiring diagram for. any help i can get is appriciated thank you

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#Rittenhouse by Marcy Berry on 2011-03-03 21:25
I am a property manager who manages a townhome with a broken Rittenhouse intercome system. The speakers on the exterior are installed in the brick so to remove them is a huge project. The main console in the kitchen is what I am looking to repair or replace. The model number is: (looks like) M7034. …Purchase or Repair: Ticket Image...
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#Rittenhouse by sal on 2018-01-16 16:43
Trying to obtain new springs and strikers/drivers

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#Rittenhouse by paul suter on 2007-02-12 03:05
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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#Rittenhouse by Derek Rust on 2008-07-26 15:22
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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#Rittenhouse by Vev lee on 2013-05-19 16:43
I need the wiring digram for model number c8535

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#Rittenhouse by Marie Gunderman on 2007-11-26 01:41
We purchased our present home in 1998. It was custom built in 1983 with many upgrades that were available at that time. Unfortunately since we have lived here the system does not work. The main unit is 17\' wide and 9\" tall. There are 12 units scattered throughout the house. They each measure 7.5\"…Purchase or Repair: Ticket Image...
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#Rittenhouse by Jim Drouillard on 2008-05-16 02:50
I have the above mentioned door chime (Rittenhouse door chime model C8536) that does not work correctly. There where some broken wires from the transformer coils that I soldered back on and now it does not work correctly. Do you have a schematic for this unit?

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#Rittenhouse by Agnes R. Kellan on 2009-11-06 01:18
I have my radio-intercom since 1969--In hasn\'t worked for about three years. I have two stations.

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#Rittenhouse by Snidal on 2015-08-12 07:20
Please provide an update on the status of the Rittenhouse C8578-1 135-7351-01 door chime unit. It is still not functioning, and we need attention on this matter soon. Thank you.

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#Rittenhouse by DominicJ. Carini on 2009-07-23 03:03
I have a 30 year old rittenhouse door chime with the 4 sequential chimes, one of the plungers has gone lazy. I took the transformer out to try to clean it and lost the little spring that gives the plunger resistance . Do you have any ideas ?Or do you sell parts, perhaps a whole tansformer. I tried t…Purchase or Repair: Ticket Image...
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#Rittenhouse by Karen Noll on 2009-11-16 14:27
I am looking for a cover to Rittenhouse, model 912 (possibly 812, numbers are difficult to read). Can you help?

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#Rittenhouse by Dick on 2018-12-06 23:40
Part #C80Q0 door bell switch.Can I order a replacement ?

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#Rittenhouse by David Hocevar on 2011-12-05 17:56
I have a ritenhouse emerson door chime unit. It just started chimeing for no reason I had to disconnect it to silence it. Now when I hooked it back up nothing happens. Clock doesn\'t work, chimes don\'t work.Model 086331 4 tubed chime It also has a teledcrome syncronis motor. Any hope for it.Thank Y…Purchase or Repair: Ticket Image...
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#Rittenhouse by Jay Sturm on 2007-02-24 18:35
Dear Sir: I\'m looking for a electric schamitic for an Emerson Rittenhouse intercom Model rm20/rm22. Any help in this matter would be appropriated. Thank You, JAY

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#Rittenhouse by Diane Reichard on 2010-04-14 13:54
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: Ticket Image...
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#Rittenhouse by Jorge Crespo on 2015-05-11 04:05
Riitenhouse chime model C8538R to connect into the AC adapter 16 volt .

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#Rittenhouse by Bob Murley on 2014-10-31 04:57
Is the volume of the chime adjustable?

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#Rittenhouse by Michael Donnelly on 2012-06-05 13:26
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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#Rittenhouse by STEVE on 2013-10-30 16:58
where can i find a schematic for a rittenhouse rm-20/22 intercom am fm radio

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#Rittenhouse by Qaiser Baig on 2012-07-01 04:25
Hi,Some one open the wires of my door bell Model C8550 (in the bell). Would you please give the wiring/connection diagram for this door bell so that I can re-connect the wire to operate my door bell.You co-operation & early response will be highly appreciated.Regards,Qaiser Baigβ€”> …Purchase or Repair: Ticket Image...
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#Rittenhouse by Scott Steffens on 2015-09-15 22:03
I have a Artolier Lighting & Sound Div - Emerson Electric Co / Rittenhouse Operations Honeoye Falls, NY 14473 Model C8577 - 16 Volts. Do not know how to wire. It was working when it was taken from another home.This home is set up with one front door bell - ding dong doorbell on 1st floor and the Rit…Purchase or Repair: Ticket Image...
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#Rittenhouse by edward havertong on 2012-08-11 17:33
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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