CARTRIDGE LOADING – RESISTIVE
For MC cartridges, the maximum resistive load is 1,000 Ohms. This
is the value when there is no resistor added to the Personality Card.
This value may be lowered by adding a resistor (as shown) at R1
whose value is calculated by the following:
R1 = 1/(1/R
DESIRED
– .001)
Some typical values are:
Desir
ed R (Ω
) R1 (Ω)
50 52.3
100 110
200 249
500 1,000
For MM cartridges, the maximum resistive load is 47,000 Ohms.
This is the value when there is no resistor added to the Personality
Card. This value may be lowered by adding a resistor (as shown) at R1
whose value is calculated by the following:
R1 = 1/(1/R
DESIRED
– .0000213)
Some typical values are:
Desir
ed R (Ω) R1 (Ω)
1,000 1,020
5,000 5,620
10,000 12,700
20,000 34,800
CARTRIDGE
SET UP
2-4
R1
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