Do you have photos? On Wed, Dec 9, 2015 at 9:18 AM, Dale H. Cook <radiotest at juno.com> wrote: -- **** CONFIDENTIALITY NOTICE ***This e-mail transmission, including any attachments, contains information that may be confidential or privileged. The information is intended for the use of the individual or entity named above. If you are not the intended recipient, be aware that any disclosure, copying, distribution or uses of the contents of this information is prohibited. If you have received this e-mail in error, please notify the sender immediately by reply e-mail. Please destroy all electronic and hard copies of the communication, including attachments. Have a blessed day!*

On 12/9/15 6:24 AM, Mike Boyle wrote: http://www.jimprice.com/prosound/carts.htm or do a google image search for "broadcast cart" I had forgotten the top of the cart was often clear

At 10:05 AM 12/9/2015, wulfman wrote: I have nearly forty years of experience as a radio station chief engineer, and began doing radio engineering in college in 1969. Wikipedia, as is so often the case, is misleading. The Muntz Stereo-Pak system was not an NAB standard system, and never caught on, in part because the frequency response was less than that specified by the NAB standard and in part because the moving head system was problematic to keep operating properly. Because the carts were not NAB standard they could not be used with the NAB standard cart machines used in broadcast studios. See the 1976 edition of the National Association of Broadcasters publication "NAB Standard: Cartridge Tape Recording and Reproducing." Section 1.2 of the standard specifies "The Standard requires either one program track and one cue track for monophonic programs; or two program tracks and one cue track for stereophonic programs." The multi-cart playback systems that were NAB standard and were most often used in radio automation systems were: 1) Carousels and their variants (such as the IGM Go-Carts) which had one set of fixed-position heads with electronics, and could move a group of carts so that the heads engaged one cart at a time. 2) IGM Instacarts, where every cart was stationary and each cart had its own set of heads and electronics. Carts from either of those systems were the same as those used in studio machines. If an automation system failed the station could be manually operated with an announcer manually activating the reel-to-reel decks that held the music and manually playing the carts in the studio cart machines. For one of the last of the tape-and-cart based automation systems that I took care of (an IGM 770 system in the 1980s) the station purchased a pdp8/m from a used IGM system. I trained the station operations manager in how to swap out the minicomputer and get the system running again, so that announcers need only run the system manually for about 45 minutes after a failure. I lived more than an hour's drive away, and if already working on an emergency at another station might take some hours to respond, so reducing IGM downtime was a big advantage. When I did get there I repaired the defective pdp8/m and put it back on the shelf. Other failures, such as failures in an Instacart or in a reel-to-reel deck were not crippling, as there were multiples of both, but failure of the pdp8/m would halt the system. Dale H. Cook, Radio Contract Engineer, Roanoke/Lynchburg, VA http://plymouthcolony.net/starcityeng/index.html

On 12/8/15 8:54 PM, Alexis Kotlowy wrote: They are continuous loop, lubricated with graphite, with cue tones on the non-audio tracks. The graphite shed onto the playback head so you had to clean the heads every couple of shifts at a non-automated station. I would assume they had enough carts so that during a normal day the engineer would only have to clean them once or twice. The systems I'm familiar with were made by Gates (not Bill) in the early 70s. No computers at all in them.

At 09:54 AM 12/9/2015, Al Kossow wrote: The Gates cart machines were rebranded ATC machines. ATC was a progenitor of ITC, one of the foremost of the cart machine manufacturers. I worked with ATC machines and the rebranded Gates machines beginning in 1969. The best and most expensive cart machines (~ $4000 for players and ~ $6000 for recorders) were microprocessor controlled - the Pacific Recorders and Engineering (PRE) Tomcat machines of the 1980s. Dale H. Cook, Radio Contract Engineer, Roanoke/Lynchburg, VA http://plymouthcolony.net/starcityeng/index.html