| Author | Message | ||
     Josue Roberto Lopez Lobo (jorololo) Username: jorololo Registered: 01-2008 |
Hello, i need help with this diode MR 250/5, i have 210HD130-12AX7, in the manual appears 5KV A.I.V., physically says MR250/5, i want replace them, but anyone knows a good replace for this diode??? | ||
| Bill Moore (bill_moore) Username: bill_moore Registered: 03-2013 |
did anyone source this diode? Thanks | ||
| Lars Verholt (lmv) Username: lmv Registered: 11-2009 |
I've found an equivalent part: 1N1734A. It seems to be available thorugh a couple of online distributors. Hope this helps, Lars Verholt | ||
| Bill Moore (bill_moore) Username: bill_moore Registered: 03-2013 |
Thank you so much! | ||
| Bill Moore (bill_moore) Username: bill_moore Registered: 03-2013 |
I have been trying, but other than a $10 ea. 8 min order, I haven't found a source! Was able to find the MR510 equivalent, and most of the caps through Mouser. Futurlec had the 16V zeners, and some other passive parts I need. A member on this forum is sending me the correct 400mf 25V caps. Anyone have a couple they would part with? | ||
| Mike Kaus (mm210) Username: mm210 Registered: 05-2006 |
Not meaning to poke in here but what the hell schematic did you get that out of? I don't see any diodes like that in the 130 watt schem. All I see are the 1KV 3A diodes in the power supply area. Cheap. Maybe yours had a run that they got on sale somewhere but don't really think they are required. Export amp? | ||
| Mike Kaus (mm210) Username: mm210 Registered: 05-2006 |
Actually, I forgot about THOSE diodes. 5KV 2A. HMM. Don't have any of those. | ||
| Bill Moore (bill_moore) Username: bill_moore Registered: 03-2013 |
Thanks for responding, Mike, I found a discussion that lists their purpose as protection for the OT from high voltage spikes. (believe it or not, from the speaker voice coil!) If I don't find any, I'll just use what I have if they test OK. |