EH Scott Radio Enthusiasts

The Fine Things are Always Hand Made

Steve Larrabee
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  • Woodstock, VA
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EH Scott Model 510 Tuner Service Manual/Alignment

Posted on May 21, 2017 at 10:02pm 4 Comments

I came into a 510 Tuner recently and have renewed the caps and resistors as necessary.  I have the schematic for the Tuner and also the Power Supply/Audio Amp.  I built my own power supply/amp with 6L6s and a 6SN7 and diode rectification because one did not come with the tuner.  Now I need the alignment instructions for the tuner or better yet, the Service Manual.  Would anyone out there have a .pdf that would help??  Thanks very much, best, Steve 

Shield Grid 9 Renewing...........

Posted on March 13, 2017 at 8:00pm 33 Comments

Hi Kent:  I am working on a Shield Grid 9 now that is in very good shape. I have dismounted the SGA (shield grid assembly) because of low filament voltage on the three 22s - max I can get is 2 volts with 5 volts on the entry bus.  Taking that SGA off and opening it was much more of a chore than necessary because the designer apparently didn't think it would ever be required.  The paperwork discusses the short wave ability of the SG-9 and the need to change the coil in the 630 Antenna…


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