ok so i need a replacement ic for the power amp portion of my unicord stage 25 amplifier. i found two possible canidates however im unsure compatibility wise.. they are ECG1259  and  RCA SK3915 the origional ic is still a viable option but i dont want to end up paying $20 more on something that could be improved upon. could anyone point me in the right direction?

thanks for the advice

on an old pre univox (unicord stage 25) amp that i have i blew a fuse and it says to replace with a mdv 1/2 amp 250v fuse. would i have to use a fast or slow blow fuse for this? im not sure and i figured i would ask around before i went and got some

ok i got it to work... for a few days it shorted out recently tho and the fuse before the transformer keeps blowing when the amp is turned on would this indicate a bad transformer or yet another problem? the first was a bad track between the two input jacks and the rest of the amp.

i have a unicord stage 25 solid state amp that i dug out of storage recently when i plug it in and turn it on the power light does go on but no sound is produced. i have eliminated the jacks, fuse, and the speaker as a problem... what would be the most common cause for a problem like this? any help, suggestions are very appreciated