I don’t know what this is exactly.. Seen it get listed 3 times but no one ever bid on it. After seeing it list for the third time, for the heck of it I put in a max bid of $2..
I don’t know what this is exactly.. Seen it get listed 3 times but no one ever bid on it. After seeing it list for the third time, for the heck of it I put in a max bid of $2..
I won it for 99 cents…
The only information is:
Pulse Dynamics Manufacturing Co. model 287 remote mixer / phone interface. Complete but untested, so sold as-is. No power cord
Can’t find it on the web.
Look familiar to anyone?
Impressed but Don’t Know
I am impressed by the picture but don’t know what it is. My gut tells me you made out like a bandit and have something great.
The only thing that remains is to figure out what.
Could be…
I’m not sure, but it looks similar to the radio interface our Fire Department used to call the hospitals while in route. It connected to the VHF mobile radio in the vehicle.
The thing outputs a tone which was pulsed by the rotary dial. Dialing the appropriate numbers would alert a particular hospital. The hospital would then answer the call and the paramedic would give details regarding the patient being transported.
Remote Broadcast Mixer
In their day (don’t you just love that phrase) these mixers allowed broadcasters to dial up the studio phone link from anywhere there was a POTS line. This unit was used prior to touch-tone (DTMF) service was made the standard for telephone service. Depending on the model number, most of these units were incapable of generating DTMF tones. As the name suggests, they generate dial pulses to access remote telephone locations. Many phone carriers, in this day and age, require a pulse to tone converter for these units, or units like them, to be used. If your local phone company still has pulse service, this is a great buy. If not, then scrounging up a converter will be your next task. Here is a possibility for you:
http://www.dialgizmo.com/
One other possibility is to replace the pulse dial with a DTMF pad and encoder. Otherwise, these units are sah…weeeet.
these mixers allowed
these mixers allowed broadcasters to dial up the studio phone link from anywhere there was a POTS line
Marshall, What’s the advantage? I don’t really understand the point.. and what exactly is a “studio phone link”
I guess I’m still missing the whole concept of this units function…
The shipping was only $15 -so even if I don’t find use for it (or if it doesn’t work) I’m only out a grand total of $16!
It should be arriving soon… but I still don’t understand what it is.
It does look neat though!
Dialing back to the station…..
These units were used mostly for live sports play-by-play broadcasts. The broadcaster could set up the dial-up mixer in the press box at the game stadium and call back to the main studio over a regular telephone line. Just unplug the regular phone from the wall and plug in the remote mixer and dial up the studio (using the unit’s rotary dial). The main studio just answered the call and put the call on the air through the main mixer board for the duration of the game broadcast. The primary advantage was that there were a lot of audio inputs to the mixer; usually 2-3 mic’s and an AUX input for a tape player for delayed playback of interviews. The 3-4 hour long distance phone call was cheap compared to a dedicated equalized broadcast quality phone line. Plus, most on-air folks knew how to make a phone call (little or no training needed).
These units were also used for commercial business in-store and on-site remote broadcasts. Most businesses of the day had a phone line. That was all that was needed to get audio back to the studio from the store.
These units are NOT for in-studio use (remote use only). Today we have many other technological ways of doing the same thing over UHF STL systems, the internet and WiFi. Once again, without the pulse to DTMF converter this unit is totally useless today (as originally designed, unit is nearly 30 years old).
Ahhhh.. So cool! So what I
Ahhhh.. So cool! So what I have here is in essence a remote broadcast unit!
I’m going to get one of those DTMF converters!
Wow! If this thing is functional it could prove useful! I could then use my ‘Anomaly Phone-Jam’ hybrid to take the call at the station!
Thanks for the info Marshal!
.. I zoomed in on the picture, I cant read everything, but what I’m seeing is what looks like:
a 1/4 jack saying “Dual Input” with 3 knobs above it
a RCA jack saying “Mixer Driver” In” with knobs above: L(?)ive & Line
a “Line circuitry” toggle switch with “Hold” & “M?M”
a “Bridge Driver” “Air Test Trim” toggle switch with connectors above.
a “Program” “Line” toggle switch
a Power toggle, and 2 1/4 Phones inputs with volume knobs
I dont see any mic inputs.. I wonder if the “Duel Input” would function as such.. or perhaps a mixer is needed with it.. or maybe there’s more connects on the back of the unit…
.. OK nuff wondering! I’ll wait till it gets here!
I just wish I could find some documentation on it.
Hmm.. the order of responses
Hmm.. the order of responses are upside down and odd, my reply fell in the middle somewhere and probably wasn’t seen.. at first I thought it wasn’t there!