Specifications

11
Manual Van de Leur Audio 002
© Van de Leur Audio
Available values:
Load impedance
(Ohm)
Rin (= resistor to be placed)
Rin according to
E12 reeks
344 and higher
None
300
2345
2k2
250
915
1k2 + 3k9 parallel
200
478
470
150
267
270
50
58.5
56 + 2.7 in series
30
32.9
33
20
21.2
22
10
10.3
15 + 33 parallel
Calculate other values by using the following formula: Rin = (344 * load impedance) / (344 –
load impedance). Example: (344 * 150) /344-150) = 267 Ohm
Moving coil resistance / internal wire resistance
If the moving coil resistance of the MC cartridge is lower than 20 Ohm (check specifications),
another adjustment of the phono stage is recommended. This adaption prevents the ‘ringing
effect’. There need to be placed two resistors and two capacitors for this adaption. Solely to
be done by professionals.
The soldering islands are located next to the MC10 step up transformers and to the left of the
input selector. One between input 3 and 4 of the right channel and the other between input 4
and 5 of the right channel.
Solely use 0.25 watt metal film resistors and mica capacitors and put the two in series
according to the table underneath.
Internal resistance cartridge
(Ohm)
Rc (to be placed resistor)
Cc (to be placed capacitor)
3
15k
150 pF
5
18k
120 pF
10
18k
100 pF
15
47k
47 pF
20 and higher
none
none