What have I got?

I purchased an item at an estate sale that is made by CVP Products (printed on circuit board), it has the # HRN-1 on the circuit board. It's a metal box aprox 9 in wide X 5 in deep X 1 1/2 in H. The front has 5 dpdt switches (probably 3 -4 $ switches) with center off, push button circuit breaker, a volume control (pot) and an off and on switch. The back has two RCA jacks and a circuit breaker for the ac line cord. There are no markings on the enclosure other than numbers on the 5 dpdt switches.

I think it's related to the RR hobby as there was some other RR items at the sale but am not sure. Thought maybe I should find out what it is before I start salvaging it for parts that I could use. Rob Mills ~ Tulsa

PS, Circuit board has 4 IC's and 4 transistors. Transformer is 6.3 volts either side of center tap.

Reply to
Rob Mills
Loading thread data ...

Sounds like the horn simulator CVP made waaay back when. The DPDT switches "tune" the horn sound effect to match specific diesel horns. There should be a momentary toggle or pushbutton to sound the horn on the front panel next to the switches. The RCA jacks are speaker outputs. Kinda neat gadget to put a horn sound effect in one location.

Keith Gutierrez published an article on a horn matching your description in the February 1989 issue of _Model Railroader.

H> I purchased an item at an estate sale that is made by CVP Products (printed

Reply to
Dubya

CVP Products is a vendor of DCC and RailCommand systems for model railroading. It souunds like you have a component of one of those systems. Do a google for them for further info.

-- Why isn't there an Ozone Hole at the NORTH Pole?

Reply to
Bob May

Reply to
Rob Mills

Reply to
Rob Mills

The output isn't for a speaker but rather to be driven to other electronics. It's called line output. A speaker would indeed make only a faint sound if you hooked it up directly. Put a power amplifier between the speaker and the unit and you will be rewarded with substantial sounds.

-- Why isn't there an Ozone Hole at the NORTH Pole?

Reply to
Bob May

Reply to
Rob Mills

Oh, bother - of course, it's a line out. Hence the RCA jacks instead of the usual speaker-wire terminals. That way you can hook it up to whatever you want (sound system, stereo, etc.).

No more decaf for me!

DUHbya

Reply to
Dubya

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.