[Elecraft] resister pack testing question

Thu Feb 12 17:22:01 2004

Hi John,

You have it right :)
There are 4 x 33K resistors inside. They can be used independently or they
can be connected in series or parallel combinations by etch on the PCB.

There are some SIP resistors packs where the resistors have a common
terminal. For example, if the package has 8 pins, there can be 7 resistors
inside.  In that case you would measure 33K from any pin (pin 1 thru 7) to
pin 8.  Between pins 1 and 2 you would measure 66K.  These are popular for
use as pull-up resistors in logic circuits.

73/ Bob - AG5Q

----- Original Message ----- 
From: "John Cooper" <[email protected]>
To: <[email protected]>
Sent: Thursday, February 12, 2004 3:59 PM
Subject: [Elecraft] resister pack testing question

Have a question on testing resister packs to see if their good or what their
values are.  I have a 33k 8 pin SIP here.  Starting from the left the first
2 pins give a 32.98KOHM reading and so forth with each 2pins after.  So I
assumed that you can look at it as being 4 resisters in a row, right?
Measuring any other combo of pins gives no reading or infinite resistance.
Course its kinda hard to hold that lil sucker still and get the probes on
their too at the same time.

another observation I assume depending on the pcb and circuit this could be
4 33k resisters for different things in the circuit or 1 132K resister if
their all in series in the circuit.

Do I have this right kinda right or totally wrong?

WT5Y
John

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