patra710
Active Member
I pick this up at an auction the other day for $35. The front was in good but the wood cast was rough.
I took the cover off and there was 47 years of dust in it. I blew out the dust and clean the pots. I check the DC offset at the speakers outputs and had about 700mV. A bit high but I hook up some junk speakers and it did play. I was a little lost at first till I seen that there was two volume controls, one was a master volume and the other a source volume. First time I seen that. And I got no FM stereo light but I found help on this in the forum here.
I like the tone color control it has, it did make a little different but I expect more after a recap. The reverb didn't seem to do anything. the output transistors, one channel has the stock 2SD218 in it, the other channel has SK9237 in it. I took some Windex, an acid brush and a shop vac and got the boards on the top side clean.
There is around 20 2SC458 transistors in this stereo that I am planning to replace with KSC1845FTA. I am also thinking about changing out the output transistors with MJ21194G. I don't like the idea of two different brands of output transistors. And I have to pull them out to anyway put fresh grease on them. I can't see the main amp board and I am wondering why someone replace those transistors.
I am starting to put together a parts list for this stereo. Does anyone knows of any other known problems with this stereo?
Thanks
I took the cover off and there was 47 years of dust in it. I blew out the dust and clean the pots. I check the DC offset at the speakers outputs and had about 700mV. A bit high but I hook up some junk speakers and it did play. I was a little lost at first till I seen that there was two volume controls, one was a master volume and the other a source volume. First time I seen that. And I got no FM stereo light but I found help on this in the forum here.
I like the tone color control it has, it did make a little different but I expect more after a recap. The reverb didn't seem to do anything. the output transistors, one channel has the stock 2SD218 in it, the other channel has SK9237 in it. I took some Windex, an acid brush and a shop vac and got the boards on the top side clean.
There is around 20 2SC458 transistors in this stereo that I am planning to replace with KSC1845FTA. I am also thinking about changing out the output transistors with MJ21194G. I don't like the idea of two different brands of output transistors. And I have to pull them out to anyway put fresh grease on them. I can't see the main amp board and I am wondering why someone replace those transistors.
I am starting to put together a parts list for this stereo. Does anyone knows of any other known problems with this stereo?
Thanks