This is the Fidelipcac Section of
The Broadcast Archive
Maintained by:
Barry Mishkind - The Eclectic Engineer
Last updated 8/1/24
Fidelipac is probably best known for the broadcast audio tape cartridges it developed using tape lubricated on both sides - and sold by the millions.
Over the years, Fidelipac used other formulations to try to improve the S/N ratio, including one with a High Energy/Cobalt emotion.
In 19xx Mike Sirkis began to build a new line of machines for Fidelipac, among others. Some of his Dynamax series, for example, used photocells to identify different carts, allowing the system to react to different emulsions, recording levels, or even contact closures. Unfortunately, his association with Fidelipac did not last. The CTR-90 was designed by others.
Fidelipac was sold to LPB in 199x.
The huge quantities of cartridges sold started to fade in the early 2000s as computer automation and digital audio storage took over from mechanical systems.
The Fidelipac and Dynamax products were sold to Cart Guys in 2001.
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Click on picture for a larger image |
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300A - the basic cartridge. It could hold from 10 seconds to 10 minutes of double-lube tape. |
| 300B - a wider body to hold as much as xx minutes of tape. | |
| 300C - the widest body to hold as much as xx minutes of tape. | |
| 350 - a stereo-oriented version with an adjustable corner piece which allowed the cart to be "tuned" for best stereo reproduction. | |
| MasterCart - A red body and used a longer tape path to "settle" the tape before it reached the heads, with the goal of even better stereo performance. | |
| MasterCart II - A | |
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Dynamax CTR-10 |
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Dynamax CTR-30 - a three stack |
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Dynamax CTR-90 |
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Dynamax CTR-100 - recorder |
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Dynamax CTR-100 - reproducer |
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Dynamax DCR-1000 - 1993 - a digital recorder using 2 MB and 13MB disks. |
