N8YX
11-23-2013, 12:45 PM
A thread in which we bring to light obscure/unknown electronics products then try to identify the manufacturer - and the reason for the device being produced.
My latest acquisitions - a pair of Tek TM500 power modules (a 501 and a 502) with one each "Universal Monitoring Module" mounted in them - fall into this class. The Modules look to be an audio amplifier/tape recorder interface which will accept an unbalanced, microphone-level input and trigger an internal relay if the applied signal rises above a panel-presettable level. High and low-cut filters are provided, each controlled from the front panel. A Headphone Out jack (w/ level adjustment) is provided on the front panel and a Line Out jack with NC/NO relay contacts is installed on the back.
These aren't someone's hacked-together DIY modules, either. They incorporate commercial quality double-sided CCAs and professionally fabricated, silk-screened front panels. Shielding is extremely well executed - better, in fact, than in a lot of Tek's OEM offerings. Yet, there is absolutely no manufacturer data or related information present on any portion of the constructs.
Shown here is the TM501/Module I won; the TM502 was set up for two Modules but only came with one. Any of you BCast Eng types know what these are and who made them?
11019
My latest acquisitions - a pair of Tek TM500 power modules (a 501 and a 502) with one each "Universal Monitoring Module" mounted in them - fall into this class. The Modules look to be an audio amplifier/tape recorder interface which will accept an unbalanced, microphone-level input and trigger an internal relay if the applied signal rises above a panel-presettable level. High and low-cut filters are provided, each controlled from the front panel. A Headphone Out jack (w/ level adjustment) is provided on the front panel and a Line Out jack with NC/NO relay contacts is installed on the back.
These aren't someone's hacked-together DIY modules, either. They incorporate commercial quality double-sided CCAs and professionally fabricated, silk-screened front panels. Shielding is extremely well executed - better, in fact, than in a lot of Tek's OEM offerings. Yet, there is absolutely no manufacturer data or related information present on any portion of the constructs.
Shown here is the TM501/Module I won; the TM502 was set up for two Modules but only came with one. Any of you BCast Eng types know what these are and who made them?
11019