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  Technical Information and Modifications for Test Equipment built by and for Motorola
Compiled by Mike Morris WA6ILQ
   


If anyone would like to contribute other test equipment manuals we'd be happy to host them. We'd also like to see articles on how-to-use, troubleshooting, repair, etc.
And if anyone can provide front and rear photos of the models listed below that would be useful.
If someone has the skin off their unit it would be appreciated if they could take a few interior photos and send them in.

The Motorola Portable Test Set Page
Information on several vintages including the P-8501, TU546, S‑1056 / 1057 / 1058 / 1059 series, R-1033, RTX4005 and several base station / repeater test sets.
Manual for the Motorola R1013A SINAD meter   401 KB PDF
Manual number 68-81069A81, donated by John Crabtree KCØG
Manual 68P80310B60 for the Model R-1034A Control Line Test Set   511 kB PDF file   Manual Photo   Donated by A. Nony Mous
Many dispatch systems had the base station or repeater at one location and the control point at another.   Setting up or maintaining the connecting phone line required the ability to make both DC and AC measurements.   Motorola and Triplett together designed the Model R-1034A Control Line Test Set, and the mixed background of the Motorola 2-way engineers and the telephone telecommunications background of the Triplett engineers shows in the design.   Triplett sold the unit as the Model 4 Subscriber Loop Test Set for doing telephone circuits.   Motorola made some changes to add Control Line (wireline) fuctionality and sold it as the Model R-1034A Control Line Test Set.   Both are essentially a specialized AC and DC VOM and an audio generator all in one ruggedized package (they used the housing from the Triplett 630 series VOM), measures telephone line current, telephone line noise, DC resistance and both AC and DC Volts, and all measurements are using ranges that are optimized to telco control lines.   This test set will also send audio tones at an adjustable level and measure received tones in dB on the meter.   A switch on the lower left of the panel selects bridged or terminated mode.   The unit was built into a sturdy protective carrying case with a pocket in the lid for the book and the probes, and a snap-hook shoulder strap for carrying.   The test set is powered by two common 9 Volt batteries and one D cell battery - and before you buy a second-hand one make sure that you open it up and check for corrosion caused by leaky batteries (this is the voice of experience speaking...).
Unfortunately, the manual does not contain a schematic diagram or parts list.   If anyone can turn up that info - even if it is the Triplett manual - we'd appreciate it.
R1150 / R1151 Code Synthesizer II Operators Manual   7.6 MB PDF courtesy of Dan Fargo KB3EMH
This is manual 68P80310B03-B dated October 1994 that covers the operation of the R1150, R1151, R1150A, R1150E and the RLN4504A memory upgrade kit (there are no schematics or technical information). The first 28 pages in the PDF file are the R1150 manual, and the last 8 pages are the R1151 addendum.
R2001A / R2002A series Service Monitor Service Manual   18.6 MB PDF   Donated by A. Nony Mous
68P81069E84-O dated 30-May-1980
R2200 / R2400 Communications Service Monitor Operators Manual   68P81069A79-B dated 15-Sept-1985   1.99 MB PDF   Donated by A. Nony Mous
Much cleaner copy of the above manual: R2200 / R2400 series Service Monitor Operators Manual   3.55 MB PDF
R2200 / R2400 series Service Monitor Maintenance Manual   68P81069A76-O dated 12-Aug-1983   61.02 MB PDF
The above manual broken into small sections:
Part 1, 3.8 MB     Part 2, 6.2 MB     Part 3, 6.7 MB     Part 4, 2.6 MB     Part 5, 3.8 MB     Part 6, 5.4 MB
Part 7, 7.5 MB     Part 8, 8.8 MB     Part 9, 5.6 MB     Part 10, 5.9 MB     Part 11, 6.7 MB
Motorola Transistorized Voltmeter manual ‑ models S1051C and S1053C
68P81003A15-O book for the S1051B   857 KB PDF   donated by Eric Lemmon WB6FLY
68P81021A05-C book for the S1051C and S1053C
  2.9 MB PDF     Donated by A. Nony Mous
This is an AC voltmeter that covers 1 millivolt (-72db) to 300 volts (+52db) in 12 ranges, and is +/- 2% from 50 cps to 300 Kc, or +/-3% from 20 cps to 1 mc.
The S1051 is battery operated only and used a single 8.4 mercury battery (Mallory TR-136), which is no longer available. It works just fine with a standard 9 volt battery with a 470 ohm resistor in series with it. The S1053 series is AC or Battery operated, the AC adaptor provides 9 volts AC. It's easy to convert an S1051 into an S1053 by adding a leftover 9v DC wall wart and the missing components (the "C version manual covers both units).
The SKN6001A is the "official" test lead kit that is used on several Moto measuring devices. It is a 30 inch length of RG-58-style shielded cable with a standard 2-pin bannana plug on one end and a pair of insulated alligator clips on the other.
Motorola S1067 transistorized audio oscillator manual   4.6 MB PDF   Donated by A. Nony Mous
The manual calls for a no-longer-available 22.5 volt Burgess battery. An Eveready 763 (NEDA 710 or HS6571) battery works fine.
The manual for Motorola's S1318A, S1319A, S1320A, S1321A and S1329A Signal Generators
Manual number 68P81061A75-A, 21 MB in size, PDF'd and donated by Howard Thompson K2LAW
Motorola S1339A RF MilliVoltmeter Instruction Manual   4.6 MB PDF     Donated by A. Nony Mous
It's actually the Boonton 92E manual, but the Moto S1339 was a relabeled Boonton, so it works just fine.
Motorola T-1034 RF generator   Schematic   100 kB GIF   External photo   18 KB   Internal photo   11 KB   all donated by A. Nony Mous
All our source had was the pullout schematic - he's still looking for the rest of the manual... If anybody has it, let us know.
The T-1034 RF generator is a relabeled Measurements Corp. Model 80 generator. The original Model 80 (1944 vintage) ran from 2 MHz and went up to 400Mhz and were built by various companies under military contract under the designation TS-497A and TS-497B. The later 80-R model dropped the 2-5 Mhz lowest frequency band and replaced it with a new 400-475 Mhz highest frequency band (the mechanical design limits the number of frequency bands). The basic rf design relies on a 955 acorn triode connected as Colpitts oscillator. The 955 tube sits in a round silvered can (visible in the internal photo) surrounded by the various oscillator coils, which rotate into position with the band switching knob. The mechanical internals are beautifully laid out and a fine piece of precision work rivialling a good watch. Because the oscillator delivers the output power too, modulation is limited to 30% and is AM only - but there is enough FM in the output to be usable. Output power is induction coupled to a variable attenuator. The 80-R was built through the 1960s.
Technical Manual TM 11-5030A (4.4 MB) is for the for the TS-497B/URR military version of the Model 80. There are enough differences that we'd like to have the regular manual also. As far as military manuals go, if anyone has a copy of the later TM 11-6625-253-12P we'd like to get a copy.
SLN6221 Tone Generator   Photo     Larger file (294 KB PDF)     Smaller file (203 KB PDF)
This is a reed-based test tone generator designed to plug into a service monitor. The upper socket is for the small reeds, the lower socket for the "copper bananna" reeds.
SLN6222A and SLN6222B Reed Tester   Photo     Manual 68P811114A04-D   587 KB PDF
This unit uses a no-longer-available 6.5-7 volt 1000 mAh mercury battery that is 0.662" diameter and 3.245" long. The battery may be one of the following brands and types: Eveready E135, Mallory TR-135, or Ray-O-Vac T-135. If you have one of these you may end up using an external battery pack or a DC wall-wart style power supply. There is enough room inside the case that you could add a 6v three-terminal regulator with one silcon diode to raise it 3/4 volt (which would deliver 6.75 volts), then power it with a 12vDC source.
SLN6413A DPL Test Set Manual 68P81069A30-A     1.8 MB PDF
ST855 Microphone Tester Manual 68P81121A08-O     486 KB PDF
This is a handy device that was seen in a lot of large fleet radio maintenance shops (i.e. police departments, fire departments, etc).   It is self contained with a tone generator, a speaker (that the microphone under test was plugged into) and a VU meter.
TEK-1A Tone Generator   Photo     Manual 68P81101A91-B   522 KB PDF
This is a 2-tone test unit that was used to feed the external modulation port of an RF generator.
TEK-21 Pulse Generator   Larger file (244 KB PDF)     Smaller file (175 KB PDF)
This is a generator used in testing "Extender" equipped mobile radio receivers - an "extender" is an option usually found on low band, occasionally on high band radios that is essentially an IF-based noise blanker.
TEK-7A Alignment Meter Manual 68P81103A68-C   165 KB PDF
This is essentially a mini-test-set with an RF probe.


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This web page created 28-Feb-2010

Contact Mike Morris WA6ILQ at (his callsign) /at/ repeater-builder /dot/ com

This web site, the information presented in and on its pages and in these modifications and conversions is © Copyrighted 1995 and (date of last update) by Kevin Custer W3KKC and multiple originating authors. All Rights Reserved, including that of paper and web publication elsewhere.