Comments for page: Eico Cortina 3070

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Posted by Steve L. November 24, 2021 - 02:48 pm
Hi Walt, I'm very happy to hear of your success; congratulations! And thank you for letting us know. The 3070 really can be a very nice little amplifier. Will be happy to help if anything else comes up.

Posted by Walt N. November 24, 2021 - 01:28 pm
Phono input is fine as well. It appears I have not screwed anything up yet.

Posted by Waltn N. November 24, 2021 - 10:55 am
I replaced Q201 in the preamp, replaced the 2 output caps with 4700uF and replaced ALL the electrolytics. I sounds pretty good! The lo cut problem is not there, so I assume it was a bad cap in the preamp. I have not tried the phono input yet.

Posted by Steve L. November 22, 2021 - 02:08 pm
Very good, Walt. Let us know how it goes!

Posted by Walt N. November 22, 2021 - 01:54 pm
It appears I have it correct, just wanted to make sure. Thanks for the comments. Getting close to done on the re-cap. Try it soon.

Posted by Steve L. November 21, 2021 - 03:00 pm
Hi Walt, Yes, the C and B pins on the 2N5089 are swapped relative to those of the 2N3391A. The E pin remains in the same place, relative to the package shape. I take it you would like to have a way to verify the Q201 connections. Near the top of the second page of this article is a picture of the 2N5089 with the pins labeled. I believe Eico has labeled the pins on the silkscreen, so you can match them up. As a further check, the C pin goes to R202, which should be a nearby 4.7K resistor, so you will be able to measure continuity. Let me know if you need further assistance on that.

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