Seeburg R mra5-l6 voltage testing
Q&A about all types of jukeboxes: Wurlitzer, Seeburg, Rock-Ola, AMI, and more.
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Steve_B
Topic author - Regular Member
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- Location: Paramus, New Jersey, USA
Can the 5U4 tube be powered on without the mech attached in order to test amp voltages? Receiver and amp have been re-capped. The mech is currently disassembled as part of restoration.
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MattTech
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- Location: Philadelphia Pa USA - Home Electronics - Service Technician
Steve_B wrote:Can the 5U4 tube be powered on without the mech attached in order to test amp voltages? Receiver and amp have been re-capped. The mech is currently disassembled as part of restoration.
I would NOT power up an "unloaded" rectifier simply because sustained peak DC voltage could potentially stress & damage the electrolytics down the line.
And having "part" of the associated equipment disconnected (mech) can influence voltage readings anyway, giving false readings that are different (higher) from those listed in the service manual.
Last edited by MattTech on Mon Feb 15, 2016 5:26 pm, edited 1 time in total.
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Ron Rich
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Hi Steve,
Yes--but you also will need to connect the speaker plug--
Ron Rich
Yes--but you also will need to connect the speaker plug--
Ron Rich
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