Unofficial Mirror of www.freeinfostuff.com/E200D/E-200D.htm
Which Has Disappeared from the Internet!
B&K E-200D Info Page
This web page is a collection of info on the E-200D, so others can get the most out of their unit. Some of the info is from B&K (schematic, manual, etc.) and some of it is from experimenting with my unit. If you have any questions or comments, feel free to e-mail me.
So what’s so great about this old clunker you ask?? Yes, the E-200D is an old clunker but it's a great little inexpensive signal generator. It has several features that set it apart from other cheapie generators:
1. It has a calibrated output that goes all the way down to 1 microvolt.
2. The internal shielding keeps signal from leaking out.
3. It has a crystal marker for setting the output frequency.
The first two features allow using the E-200D to align sensitive receivers. Cheaper generators generally have poor shielding and so they leak lots of signal. If you run the output down to zero on a cheap generator, a sensitive receiver will still show a strong signal. Signal is leaking out of the generator.
If you are aligning old tube radios then there is no issue and you can use an old EICO 324 or equivalent. But I tried using an EICO 324 to align my Realistic DX160 shortwave radio, and no way! I ran the signal generator down to zero and the radio was still picking up way too much signal.
Another nice feature of the E-200D is a crystal marker, which lets you accurately set the output frequency. It’s pretty accurate as-is, but on this page you will also find instructions on how to add a frequency counter for even better accuracy.
As an added bonus, the E-200D is not very complicated so it is easy to repair.
The E-200D is perfect for us low-budget guys who would love to have a half-way decent generator but don’t want to spend hundreds of $$.
new! Service Manual
new! Service Bulletin
Attenuator Output Charts
Replacing the Output Connector with a BNC Connector
Changing the Modulation Frequency to 1KHz
Adding an Output for a Frequency Counter (new & improved!)
Alignment Procedure (My Version)