20K Ohm Resistor by Allen Bradley

20K Ohm resistor from Allen Bradley (the ones used in the original Apple-1). New old stock.

NB: This capacitor is used to replace the 27K capacitor at B2/3. Using a 27K resistor (as suggested on the PCB) will result in RAM errors. A 20 K resistor is the right choice here.

Please note: The Apple-1 uses 1 of these.