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From time-to-time, and probably in several different CVRS forums, I have reported on my Toronto-built SC 694. Of late, it developed a pronounced hum due to over-stressed Mallory electrolytics. When I would pull one of the 6L6’s, the hum would disappear but the set’s volume diminished considerably. I am not a fan of Mallory caps, electrolytic or bypass, be they N.O.S., reformed or otherwise.
As the 694 is a real boat anchor, I serviced it in the living room, rather than hauling it out to my shop. Took the easy way out by bridging the weak can sections with six Nichicon 10MFD, 450V caps. This cured the hum problems, hopefully for another five or ten years. If all goes well, I am submitting photos of the set. As you will see, my 694 has been substantially modified with a homemade cradle for the tuning eye (the original piece being long gone) and a special wood mount for a heavy 8″ co-axial speaker, which would have been way to much for the cabinet to otherwise handle.
On top of the Stromberg is an EICO HFT-90 mono FM tuner, also of Canadian origin — sort of — it was kindly sent to me by a friend in Ottawa. I can now listen to National Public Radio rather than the wretched AM programming available hereabouts…
Here’s another shot of the Stromberg-Carlson 694. Still waiting for my computer to digest, or spit-up, my photo os the finished product…
One final try at posting the finished Stromberg-Carlson 694, with EICO HFT-90…
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