What is it?

This PCB is a replacement power supply for a Keithley 177 digital multimeter. This is the PCB only, additional components will need to be purchased. Photos showing the PCB assembled and installed are for representation only. You will find a BOM below and at the documentation link along with assembly and installation instructions.

Why did you make it?

The transformer in my Keithley 177 failed and I was unable to find a drop in replacement transformer. I decided to instead use a modular AC to DC converter and to build an adapter PCB to make a nice and neat power supply replacement.

This is the PCB only, you will need to supply the other items. Below is a list of the components required:

• 1x RECOM Power RAC20-15DK AC/DC Converter Module
• 1x RECOM Power R-78E5.0-1.0 DC/DC Converter Module
• 10x Mill-Max Manufacturing 6035-0-00-15-00-00-03-0 PCB Pins
• Various Lengths of Wire, ~28AWG

Please look at the documentation provided in the link for instructions on how to assemble and install the PCB.

International Shipping

Thanks for your interest but I’m sorry I don’t ship internationally due to the cost and hassle for such a small item. Since Tindie will keep pestering me every time someone outside the US wants an item I placed a ridiculously high flat rate price for all international shipping to reduce the amount of messages I get. You are welcome to try to make some yourself, files are available on GitHub. Thanks for your understanding.