Transistors for Musical Fidelity E11 amplifier

[bluber]

Can anybody advise me how to find "high current bi-polar transistors" for replacement in a Musical Fidelity E11 amplifier? Or upgrading units for this good sounding amp? Thank you.

 

[eggontoast]

Are the originals blown ?

I don't have a service manual for that model, what O/P transistors are fitted ?

 

[Anonymous]

Try ebay, you will need the transistors make and part number.

 

[eggontoast]

Try ebay, you will need the transistors make and part number.

I would proceed with extreme caution when buying transistors from eBay, there are ship loads of fakes on there.

 

[bluber]

Thanks for your replies. Yes, the transistors blew when volume was up too much and transforming from 220 to 110 volt might have have made the system less stable. Does a down-transform lower impedance so that too much current flows in the system at a given voltlevel - i am a listener and not an engineer? I live in Bangkok, Thailand so service is limited. Will check the transistor specs.

I also have an E100 amp from MF. Maybe it uses the same transistors as the E11 and I might be able to swithch - any knows about the E100 setup? Alos have an E61 CDplayer. The E11 surpasses both of them in sound quality.

 

[Anonymous]

Hi, you cannot run the amp on different voltages unless you change the voltage settings on your amp. I am assuming this is why your tranny's blew as they are more sesitive to over voltage than over current.

 

[eggontoast]

.............and transforming from 220 to 110 volt might have have made the system less stable. Does a down-transform lower impedance so that too much current flows in the system at a given voltlevel

No using a stepdown transformer would not cause your amp to be unstable or to blow up.