Sources for Electronic Test Equipment
and Manuals
revised May 10, 2020

A number of people ask me about where to obtain used test equipment or manuals so I decided to gather all my information and post it here. Then all I have to do is just refer people to my web site rather than having to find all the scattered information. Another plus of posting this is that I can use it too - all the links are in one handy location. Be sure to check back often as I will revise this list as I discover new good sources. There are a number of other sources I know of but have not yet done business with.

Sources for Test Equipment

The following companies are listed in alphabetical order. I have done business with each of these companies and highly recommend all of them.

Fair Radio Sales
located in Lima, Ohio This is one of the oldest electronics surplus companies around. They do not have a wide selection of test equipment but their prices are good and the quality is high. They have a lot of odd, hard to find items. Many things they sell are sold as in "reparable condition". In my experience, this generally means that it either works fine but may need some minor adjustments or needs only some simple work to restore it to new condition. They are generally slow to respond to emails so allow at least a week. A phone call is probably the best way. Just because you do not see it on their web site does not mean that they do not have it. They also sell photocopies of some test equipment manuals but the selection is not broad. Although they list some manuals on their web site, they actually have much more - so you need to call.

GLK Instruments
located in California This company sells a small variety of mainly hard to find specialty cables for old test equipment but they also have equipment from time to time. These cables are newly manufactured to meet or exceed all specs of the original. They have a complete line of cables for all HP141 series spectrum analyzers and accessories. I purchased a cable to connect to my HP8443A tracking generator and it is excellent. The prices may seem high but the bare connector pieces are expensive if you can find them and expensive crimp tools and know how are often required for assembly. Your best bet is to buy the cables made by an expert. I highly recommend them.

Precision Services
located in Santa Fe, New Mexico,  .The owner is John Bau and his specialty is quality surplus electronics.  Everything he sells has been checked out and is guaranteed to work -- my personal experience confirms this.  His prices are generally very competitive with any other source.  I have known him to sell guaranteed to work items for less than the same item sold for on ebay where the unit was untested.  He updates his web site every few weeks. You can also get on his email list and receive immediate notice of new equipment a week or so before it is posted on his web site. This feature has worked well for me. John is very easy to deal with -- every time I called he was there ready to help in any way. Everything I have bought from him was just as he said.  I highly recommend him to everyone.  By the way -- do a Google search on either the name, Precision Services (formerly Precision Audio Services), or John Bau, and you will discover that in a former life John was an expert speaker designer.  His designs are world known.

Sources for Test Equipment Manuals

These sources are listed in alphabetical order.  I have done business with each of them.

W7FG Vintage Manuals This company located in Oklahoma is an excellent source for high quality photocopies of manuals for test equipment and consumer electronics. I have purchased a number of manuals from them and the quality is indistinguishable from an original. If the manuals did not come with comb binding and with their logo cover you would think the manual was an original. You can see a list of their manuals on their web site. They keep the site up to date but call if you do not see what you want as they are always obtaining new manuals. Since they only sell copies, they are never out of stock. If you see it on the web site, they have it.  I have found many good deals for test equipment and manuals on ebay.

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