Kuzma Stogi Reference - Manual (Page 23)

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STOGI/STOGI REFERENCE 23 KUZMA
C. Hum and Buzz
1. Check to ensure that grounding wire has been connected.
2. If using an M. C. transformer, try connecting ground wire to this or to the
preamplifier.
3. Alternatively, connect grounding wire to preamplifier and run another grounding
wire from the M. C. transformer ground to the ground of the preamplifier.
Hum
This can be caused by the transformer in the power amplifier being situated too close
to the cartridge or by the tonearm output cable being too close to the mains cable. If