ARP1601 Help

janvanvolt · Joined: Nov 24, 2005 Posts: 285 Location: Mainz, Germany

Hi all,

i need some help as i'd like to work on a ARP1601 clone. I am stuck at the point where i see Z20 which is a resistor IC, but have no further details.
The ARP product number is 5704101.

Can somebody enlighten me what kind of IC/Resistor net this is and likely the pinout.

The schematics show only Z20 and the ARP Part #

http://www.retrosynth.com/docs/1601/1601_16a.gif

Any help would be greatly appreciated.

Scott Stites · Posted: Fri Oct 27, 2006 10:20 am Post subject:

Your answer is here:

http://www.retrosynth.com/docs/1601/1601_07.gif

It's a 100R resistor pack - wouldn't necessarily need it - you could use discrete matched resistors. The resistors are in series - they're dropping voltage developed from the constant current source feeding them.

Cheers,
Scott