Silver tonearm wire

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In this article
Effect of Phase Shift on Hearing
Audio July 1962 pages 36+
they say that phase shifts of the frequency components are inaudible. This might explain why I hardly heard anything with stereo, but it made a big difference with quad because the quad demodulation needs to have the frequency components phased properly to demodulate the quad for best separation.

http://vintagevacuumaudio.com/magazines-1952-1962/
 
On page 8 of the reference (link below), it says that the VCO (in the PLL FM demodulator) has to be adjusted correctly to 30 kHz or beats might be heard. I wonder if you could attach a frequency counter to the VCO to check the frequency without it affecting the tuning of the VCO. Alternatively, you can use the zero beat method discussed in the reference.

http://www.fileden.com/files/2008/8/24/2063601/electronics/SManual.pdf

SManual.pdf(6.1 MB)
http://www.filesnack.com/files/ct3wds8n
 
Time constant equalizer SAEC TC-11 (1978, JPY 32,000)
This equalizer ultimately eliminates the cause of phase lifting occurring between cartridge and amplifier.

(should that be "phase shifting"?)

Electrostatic type cartridges represented by MM type are a kind of alternator, electric current is generated due to cantilever vibration. However, at the same time and because of this generated current load current - damping force affecting the cantilever occurs. The change in frequency accompanying cantilever damping force flattens out frequency and phase characteristics, the audio image becomes ambiguous and the sound clouded. Time constant equalizer TC-11 was developed to ultimately eliminate this damping force root and branch. The cartridge output voltage is made more true to RIAA curve, the current is made irrespective of RIAA curve constant and also phase characteristics are corrected.

TC-11 is mounted and used between player output and EQ amplifier input.

It can be used with most of the MM and IM type cartridges available on the market.


http://www.fonolab.com/service-1.html

Looks like it might work good with SQ or QS or similar records, but might not work with CD-4 if it doesn't pass the FM carrier without causing any problems.
 
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