Motorola Odd Stuff
Here is a photo of some specialized Motorola items.
- This is a tool used to remove locks from Motorola radios such as the Mocom 70.
- This tool is used when working on the varactor triplers used in early Mocom 70 UHF radios.
- This is a card puller used on radios such as MSR2000 and Micor repeater control shelves.
- This is use to remove pins on connectors that are used, for example, on Micor mobile control head cables.
- This is a transformer/adapter used when servicing an HT220 handheld radio. It is used when replacing the antenna with a load or connecting a cable to a signal source.
- This tool is used when servicing the MX300 series handheld radios. One end I believe is used to remove or install the fuse cover and the other to remove or install the antenna connector.
- The TEK-10 probe appears to have a capacitor around 0.002 mf between the probe tip and the SO239 connector and approximately a 50 Ohm resistor between the SO239 centre pin and ground. I do not know what instrument it was typically used with.
Many years ago Motorola produced a number of small individual boxes used to test various items. All the boxes were similar in appearance. One box had a meter and was used with a diode probe. Another was a pulse generator used to check low band radio noise blankers or as Motorola likes to call them Extenders. There were several other boxes produced for other applications. Shown below is a TEK 1A Tone Generator.
I have two of these Tone Generators. As a side note, the performances of both are a little disappointing. The frequency accuracy is not all that good and the distortion measured on the one above is 6.2% at the 1000Hz position and 2.3% at the 400 Hz position. The distortion was measured across a 1000 Ohm load. The performance must have been good enough for their intended use but it is a little puzzling why they did not finish the job and make the tone generator capable of producing a decent sign wave output.
Here is another box sample. This one is a TEK 20 PL Tone Generator.