UK Vintage Radio Repair and Restoration Discussion Forum

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-   -   Revox PR99 query (https://www.vintage-radio.net/forum/showthread.php?t=156527)

Linnovice 13th May 2019 8:16 pm

Revox PR99 query
 
Hi all, Iím in the process of giving my PR99 a little service and check over. Iíve found an odd anomaly. Itís a MkII model. Iíve set the input levels, VU meter, peak readings ok. These are all measured from the monitor output socket. The next stage is to set playback from the calibration tape, again all good. But, Iíve noticed that when changing from the monitor output to the line output with the input switch set at source the left hand VU meter shows a maximum deflection (and some!) but the millivolt meter/scope remain good (same as the monitor output) at 1000kH 775mV 0dB. The right channel remains the same as well.
Any suggestions as to why? Mike.


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