1. Home
  2. Model Railroad Forum
  3. Help Request

Help Request

Several years ago, a friend of mine built a small sound unit that produced
the sound of an operating mechanical reefer. It was small enough to fit
inside the car. The circuit diagram apparently came either from MR or RMC,
probably late 70s or early 80s. He is trying to find a copy of the plans.
Can anyone out there help?
Jeff
Reply to
Jeff Stanton
Loading thread data ...

Site Timeline

Related

  • 15 Years ago....

  • Mr M Perman was taking the editor of 'Old Glory' magazine to task over...

  • Twenty-two years ago

  • In 1990, I owned a welding company. A homeowner's association called me to...

  • 64 years ago today!

  • U.S.S. Yorktown and Lexington vs. H.I.J.M.S. Shokaku and Zuikaku in theCoral...

  • 29 years ago today

  • years ago, i suspect?

  • 80 years ago today

  • Today is the 80th anniversary of Robert Goddard's first liquid fuel...

  • Hornby Steam/Diesel sound unit

  • I have aquired an old Hornby steam/diesel sound unitHas anyone had any...

  • Two videos of one of my IC-engines I built

  • Hi! About 4 years ago, I have built this stationary 4 stroke with 87 ccm. It was...

  • First launch of Columbia, 24 years ago today

  • And I was there.I had left my job as editor of Model Retailer Magazine and was...

  • Making tools 300 years ago

  • I started to wonder how tey did things that far back. Like how didthey make...

  • The sound of TIG welding aluminum?

  • From 8 years of teaching welding I suspect that your amperage it toohigh and the...

  • Need help identifying old Miller Spot Weld Control Unit

  • Howdy!Some time ago, on ebay, I bought a "MillerMatic Spot Weld Control"Model...

  • Where were you 10 years ago today

  • Couple of moments are burned in my brain like it happend a minuteago...I was...

  • Also does anyone out there remember a Robot from several years ago called LAZLO ??

  • : There used to be a website at theonespot.com -- and there was a robot: LAZLO...

  • model rocketry 30 years ago and now...

  • It was about 30 years ago that I last built a model rocket.Now my kids are...

  • 100 years ago today, Dec. 14th, 1903

  • Don't know about film, but Clement Ader flew a bird winged steam...

  • Dapol Sound sheds

  • I had the opportunity to listen to the Steam Whistle sound shed from Dapolat a...

  • Tired of Special Friend

  • OK.. enough is enough. These articles may have points that hit home tomany. ...

  • Sound system recommendations

  • My wife thinks I need sound on my home layout [not DCC], so I checked out the...

  • Homemade Resistance Soldering Unit

  • I tried posting this earlier, but I got an error message when I went topost it....

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.