The Elektor Forum will close. See also this link. From Friday March 15st it is no longer possible to log in to the forum. However, the content of the forum will remain visible until the end of March. As of April 1st the forum will definitely go off the air.

Preamp 2012 Relay supply

HiFi, LoFi, Tubes, Transistors, ICs, Commercial, DIY

Postby flange » Sat Jun 23, 2012 12:00 am

The connection from the 15v relay power supply to K6 on the front Panel board is incorrect. The connections have been transposed. +Vre should be on the right, 0 on the left. Luckily the only effect of this error is that the led does not illuminate (wrong polarity).
Posts: 2
Joined: Thu Jan 02, 2014 10:37 am

Postby thijsbeckers » Tue Jun 26, 2012 12:00 am

Very perceptive! You are correct. They should be switched. We will make an update for the Gerber files.

It is also possible to just swap the polarity of D1, function is not impaired.

Erm, we designed the circuit in such a way, that, erm, it would still , erm, work if connected wrongly... .
Posts: 1134
Joined: Thu Jan 02, 2014 10:37 am

Return to Audio & Video

Who is online

Users browsing this forum: No registered users and 1 guest