Presumably yours is the version that requires the matching X-PSU.Like a Dalek out of its exoskeleton.
Had this lurking on the phone.
Remember, Rega's earliest resistor was a 15k carbon type, had UK mains down to below 100V.An interesting development.
The new 6.8k resistor arrived today so I removed the existing charred one. On measuring it I was surprised to see 14.9k ??? The damaged colour bands are obviously useless for cross checking, seems odd.
The photo looks like brown-black-orange, brown tolerance, which is 10k 1%. The black could easily have been green before cooking and the tolerance might well have started off red (2%) or gold (5%), so 15k is possibleAn interesting development.
The new 6.8k resistor arrived today so I removed the existing charred one. On measuring it I was surprised to see 14.9k ??? The damaged colour bands are obviously useless for cross checking, seems odd.
Linn (technically Ariston) may have been the first to do this with the pre-Valhalla network, both on the PCB and with the prior Molex terminal block.Also remember Philips were designing for 220V nominal
630V rating for the MM loading capacitors is fine, just a waste
I don't like using a series dropper capacitor as it injects all the supply harmonics and noise into the motor. A resistor acts as a filter.
If a series capacitor fails short, your expensive motor is toast. Resistors reliably fail open
With both Elan and Elektra (same 560mH generator) Goldring were pretty generous with a suggested capacitive loading range of 150 - 400pF.It turns out I have some 68pf 120v caps as well but no 15k 3w Rs.
Those 220s are probably good news for the Elan on the deck now, that needs all the help it can get for HFs and is rated up to 400pf total so pretty close.
I only mention the 150 - 400pF because I don't recall ever having noticed another MM cartridge having such a broad capacitive loading recommendation, at least not since Shure Bros. pioneered the trend of quoting such back with the introduction of V15 Type II in 1966. Prior to this, only recommend load impedance was listed, in Shure's case often with coil inductance and DC resistance quoted such that the committed enthusiast could do their own calculations.That isn't a very big range actually, particularly if you factor in an unknown armlead capacitance which will vary with length.
The actual values of cap you could buy are 100or less ,150, 220, 330, 470 so that's actually only three notches on the available range really.
Built in switchable caps into my DH-110 to give 5 options from 30 to 200pf + cables.