Recent content by Dr Spacedog

Thanks. For now I just soldered in series a 1N4001 and the thing still semms to work!

Hi, I've been building effects peddles for a while and now and then have injected the wrong polarity voltage only to watch the electrolytics expand! Consequently, I have employed a diode in series and this seems to work although it of course knocks the voltage down ~0.6V (1N4148). Just wonderd...

I'm a molecular biologist so if you have any DNA questions...But seriously I'm on the Moors above Hebden Bridge I have a room full of old synths and broken hifi and I'm on a steep learning curve. Have valve tester - not quite sure how to use it yet! - scopes and other kit. Happy to help with...

Thank you for sharing your wisdom. I feel I now start to understand what's going on. Brilliant.

Thank you. Amazing. In future is there a calculation I can do to estimate the fuse I require? Looking at the data sheet for the x91254-p2s2 it says under 'rated current per sec' 2.727 , Is this the current it can draw? Is the in-rush current higher? What does 'No Load' column represent? Sorry...

Hi I just built a Geddon power supply - based on info gleaned from here - for my Linn Sondek and it worked fine giving AC correct voltages and frequency. It’s started blowing the IEC fuse. I was using 22mm glass fuses - I guess these are meant for DC not AC. I blew a 3amp one last night and...