[sdiy] Beckman chips

[John Loffink]

Typically resistor arrays were used for terminations in digital designs
where the DIP packaging was convenient and allowed easy socketing.

John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com


> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl [mailto:owner-synth-
> 
> Back in the day they could have been machine inserted along with all the
> 
> DIPs... just easy for layout.
> 
> These networks are seldom any better than 5%.  Ratio matching 'may' be
> better, thermal tracking should be much better than individual
> resistors.
> OTOH you don't normally need to worry about resistor temp matching...
> 470 ohms is probably too low for almost all analog uses.
> 
> They might be nice for seven segment LED dropping resistors...
> 
> H^) harry
> 
> Peng wrote:
> 
> > I tested them with a DMM and they are eight seperate resistors in each
> > and the resistance is 470 ohm and 220 ohm. Looks like the date is
> > 1976. Umm... I wondered hat they were used for. Obviously I could use
> > them instead of individual resistors, but they wouldn't save that much
> > space. Just curious. P.v3
> >