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Post by fattdirk on Jul 28, 2018 12:50:02 GMT
I get an intermittent hum on any record while playing the B-side. The A-side plays fine with no hum. Any idea where to look? It's a pickering pickup.
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Post by Ron Rich on Jul 28, 2018 13:09:20 GMT
FattDirk,
What's a "Pickering Pickup" ? Do you get the "hum" if you prop pick-up away from record ? Is your audio wire going to the amp, green jacketed ?
Which needles are installed--are they properly pressurized, for which-ever cart. you are using ? Ron Rich
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Post by fattdirk on Jul 28, 2018 18:27:52 GMT
Pickering 345-03D cartridge. I do not know the answers to your question. Let me do some research and get back to you.
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Post by Ron Rich on Jul 28, 2018 19:15:35 GMT
Fattdirk,
You sure about that cartridge ? If a 345-03D it MUST still have have green colored needle plastics (or the new "correct replacements") -- If a 345, or a 340, it must have "seals" keeping the dirt out from between the two metal parts. If "green needles" are installed, it should have 4 grams tone arm pressure. Ron Rich
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Post by fattdirk on Jul 30, 2018 0:57:24 GMT
Yeah I'm sure about the cartridge. It says it right on the side. It has the green colored plastics on it. I actually I found a loose wire near the connection block under the trip switch and when I touched the wire to the jacket of the cable and it hum went away. Is the ton arm pressure adjustment in the service manual?
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Post by Ron Rich on Jul 30, 2018 2:31:03 GMT
Fattdirk.
The writing on the side is ir-relivant, at this point in time. It only serves to ID what the cartridge was, and which needles were, originally, installed by Pickering. Guess you should connect that wire ?? Ron Rich
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