Index of Technical Information and Modifications for Test Equipment

Back to Home Technical Information, Construction Information and Modifications on, of and for Test Equipment
Compiled by Mike Morris WA6ILQ

Manufacturers Manuals and Data Sheets:

Automated Industrial Electronics Corp Model 2TSG-1 Two Tone Generator Instruction Manual 986 KB PDF made from over 20 separate page scan files front panel photo
As a result of a request made in a comment thread on the repeater-builder mailing list John Kernkamp WB4YJT scanned his manual, took a front panel photo and emailed both to me.
This is a unit that can generate two clean audio tones from 10 Hz to 9.999 Khz, and send tone A or a two-tone A-B sequence with variable delay, duration and level. It was a very popular service monitor add-on for doing CTCSS generation, tone burst, single tone, or two-tone pagers. While it's called an instruciton manual it contains all available documentaton including service info and schematics.

Boonton 92BD Instruction Manual 7.2 MB PDF
Boonton 92BD Probe Information 9.3 KB PDF

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 92E, so it works just fine.

Bird Electronics Corp. Products, including the Thruline™ and Termaline™ Wattmeters.

Coaxial Dynamics Inc (Coaxial, or CDI, at http://www.coaxial.com) makes Bird clone products, such as wattmeters, elements, and dummy loads. Their elements are interchangeable with Bird equivalents (same sizes, ranges, etc) and at one time they were a bit less-expensive than Bird's. Their 81000 meter is functionally equivalent to the classic Bird 43 meter, however it has a much bigger case and a much bigger mirrored-scale meter, great for us older folks who have problems reading the small Bird meter. You may see similar-looking meters for sale, with brands like Sola, Sola Basic, or Dielectric. This product line was bought out by CDI.

Cushman Electronics Information about communications test equipment manufactured in the 1970s and 1980s by Cushman.

DSI 5600A Frequency Counter 2.83 MB PDF Donated by A. Nony Mous
DSI was a small company in San Diego California that made excellent equipment, but has folded. They made several products, at this time this counter is the only one we have any manuals on.

The Heath / Heathkit HM-2102 VHF Wattmeter 1.4 MB PDF This is the forward-and-reverse power meter that covers 50 to 160 MHz at 0-25 or 0-250 watts - it has no dummy load. The HM-102 is the equivalent for 3.5 to 30 MHz at up to 2000w, and is in the same package.

The Heathkit HM-2103 HF Dummy Load 5.2 MB PDF Heath had two compact dry dummy loads. This is the HF version, which can handle 1kw for one minute, derating to 175w continuous duty. The front panel overtemperature indicator lamp is powered by a 9v battery which has been forgotten about and leaked in every one I've seen at hamfests. BTW, the original design didn't have a fan, but several have been seen at hamfests with a muffin fan mounted on the end of the cabinet.

The Heathkit HN-31 "Cantenna" Dummy Load 15 KB PDF

Helper Instruments Sinadder Model SL-105 Photo 508 KB PDF file This is the manual for the original small sloping-front "Sinadder" unit from the late 1970s (after they came out with the Sinadder II this became known as the "Sinadder I"), complete with parts layouts and schematics. Despite the age, it's still a very useful test bench instrument. Motorola even offered a re-labeled version as the model R1013A. Helper is now owned by Zetron.
Does anyone have the Motorola 68- number for the R1013A unit? Or better yet, a copy we can borrow and scan?

Helper Instruments Sinadder 3 Photo 1 Photo 2 457 Kb PDF file Donated by Eric Lemmon WB6FLY This is the manual for the later flat-front Sinadder model 3. Helper is now owned by Zetron.

Helper Instruments "Lineman" model LM-103 This unit is used to test the leased phone lines used to control remotely located base stations. The manual that was scanned was well-worn but it's the best we could do. 683 Kb PDF file. What is left of Helper is now owned by Zetron.

HP / Agilent Information and modifications for test equipment manufactured by Agilent, better known as the old Hewlett Packard Test Equipment group.

IFR / Aeroflex Information and modifications for test equipment manufactured by Instrument Flight Research corp, better known as IFR, now a part of Aeroflex

Marconi Marconi is an English company and their equipment is not found too often in the USA. There is a Canadian Marconi company and their mobile radios were fairly popular for a while.

Ramsey "COM3" service monitor owners manual 3.54 MB PDF courtesy of A. Nony Mous

Tektronix Information about test equipment manufactured by Tektronix, best known for their oscilloscopes.

Triplett 630 Series 5 VOM manual Donated by John Riddell VE3AMZ

Triplett 630 PL and PLK VOM manual Donated by John Riddell VE3AMZ

Wavetek Information about test equipment manufactured by Wavetek, primarily signal generators.

Construction and Modification Articles:

A Poor Ham's Deviation Meter A theory and practice article on measuring deviation of FM transmitters, by Robert W. Meister WA1MIK

Build Youself a Service Monitor ? Well, sort of. By Tom Alldread VA7TA A simple deviation monitor circuit used with a scanner receiver.

Poor Man's Spectrum Analyzer A Spectrum Analyzer / Tracking Generator Kit by Science Workshop (offsite link)
If anyone wants to write a review article after acquiring one we'll put it on this page.

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This page initially created 30-March-2009 by splitting all of the Cushman, HP and IFR information away from the Other Manufacturers page. Other brands were added later.

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.

	Automated Industrial Electronics Corp Model 2TSG-1 Two Tone Generator Instruction Manual 986 KB PDF made from over 20 separate page scan files front panel photo As a result of a request made in a comment thread on the repeater-builder mailing list John Kernkamp WB4YJT scanned his manual, took a front panel photo and emailed both to me. This is a unit that can generate two clean audio tones from 10 Hz to 9.999 Khz, and send tone A or a two-tone A-B sequence with variable delay, duration and level. It was a very popular service monitor add-on for doing CTCSS generation, tone burst, single tone, or two-tone pagers. While it's called an instruciton manual it contains all available documentaton including service info and schematics.
	Boonton 92BD Instruction Manual 7.2 MB PDF Boonton 92BD Probe Information 9.3 KB PDF
	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 92E, so it works just fine.
	Bird Electronics Corp. Products, including the Thruline™ and Termaline™ Wattmeters.
	Coaxial Dynamics Inc (Coaxial, or CDI, at http://www.coaxial.com) makes Bird clone products, such as wattmeters, elements, and dummy loads. Their elements are interchangeable with Bird equivalents (same sizes, ranges, etc) and at one time they were a bit less-expensive than Bird's. Their 81000 meter is functionally equivalent to the classic Bird 43 meter, however it has a much bigger case and a much bigger mirrored-scale meter, great for us older folks who have problems reading the small Bird meter. You may see similar-looking meters for sale, with brands like Sola, Sola Basic, or Dielectric. This product line was bought out by CDI.
	Cushman Electronics Information about communications test equipment manufactured in the 1970s and 1980s by Cushman.
	DSI 5600A Frequency Counter 2.83 MB PDF Donated by A. Nony Mous DSI was a small company in San Diego California that made excellent equipment, but has folded. They made several products, at this time this counter is the only one we have any manuals on.
	The Heath / Heathkit HM-2102 VHF Wattmeter 1.4 MB PDF This is the forward-and-reverse power meter that covers 50 to 160 MHz at 0-25 or 0-250 watts - it has no dummy load. The HM-102 is the equivalent for 3.5 to 30 MHz at up to 2000w, and is in the same package.
	The Heathkit HM-2103 HF Dummy Load 5.2 MB PDF Heath had two compact dry dummy loads. This is the HF version, which can handle 1kw for one minute, derating to 175w continuous duty. The front panel overtemperature indicator lamp is powered by a 9v battery which has been forgotten about and leaked in every one I've seen at hamfests. BTW, the original design didn't have a fan, but several have been seen at hamfests with a muffin fan mounted on the end of the cabinet.
	The Heathkit HN-31 "Cantenna" Dummy Load 15 KB PDF
	Helper Instruments Sinadder Model SL-105 Photo 508 KB PDF file This is the manual for the original small sloping-front "Sinadder" unit from the late 1970s (after they came out with the Sinadder II this became known as the "Sinadder I"), complete with parts layouts and schematics. Despite the age, it's still a very useful test bench instrument. Motorola even offered a re-labeled version as the model R1013A. Helper is now owned by Zetron. Does anyone have the Motorola 68- number for the R1013A unit? Or better yet, a copy we can borrow and scan?
	Helper Instruments Sinadder 3 Photo 1 Photo 2 457 Kb PDF file Donated by Eric Lemmon WB6FLY This is the manual for the later flat-front Sinadder model 3. Helper is now owned by Zetron.
	Helper Instruments "Lineman" model LM-103 This unit is used to test the leased phone lines used to control remotely located base stations. The manual that was scanned was well-worn but it's the best we could do. 683 Kb PDF file. What is left of Helper is now owned by Zetron.
	HP / Agilent Information and modifications for test equipment manufactured by Agilent, better known as the old Hewlett Packard Test Equipment group.
	IFR / Aeroflex Information and modifications for test equipment manufactured by Instrument Flight Research corp, better known as IFR, now a part of Aeroflex
	Marconi Marconi is an English company and their equipment is not found too often in the USA. There is a Canadian Marconi company and their mobile radios were fairly popular for a while.
	Ramsey "COM3" service monitor owners manual 3.54 MB PDF courtesy of A. Nony Mous
	Tektronix Information about test equipment manufactured by Tektronix, best known for their oscilloscopes.
	Triplett 630 Series 5 VOM manual Donated by John Riddell VE3AMZ
	Triplett 630 PL and PLK VOM manual Donated by John Riddell VE3AMZ
	Wavetek Information about test equipment manufactured by Wavetek, primarily signal generators.

	A Poor Ham's Deviation Meter A theory and practice article on measuring deviation of FM transmitters, by Robert W. Meister WA1MIK
	Build Youself a Service Monitor ? Well, sort of. By Tom Alldread VA7TA A simple deviation monitor circuit used with a scanner receiver.
	Poor Man's Spectrum Analyzer A Spectrum Analyzer / Tracking Generator Kit by Science Workshop (offsite link) If anyone wants to write a review article after acquiring one we'll put it on this page.