[Hallicrafters] off topic -urm 25d

[pete wokoun, sr.]

Continuing from Glen's response:
Due to those oddball value resistors in the attenuator, your best bet might 
be to buy a lot more of the 1% ones than you need and with a calibrated 
digital ohmmeter pick the closest ones out of the pile.  I haven't been able 
to find a parts list with the original tolerances.  You might buy one of the 
0.1% resistors to check the accuracy of your ohmmeter and/or calibrate it.

pete




>From: Glen Zook <gzook at yahoo.com>
>To: JFran10657 at aol.com, hallicrafters at mailman.qth.net
>Subject: Re: [Hallicrafters] off topic -urm 25d
>Date: Tue, 16 Mar 2004 20:21:11 -0800 (PST)
>
>Mouser ( http://www.mouser.com ) has 0.1% resistors in
>1/4 watt that range in price from $0.96 to $1.14 each
>in single quantities.  They have 1% resistors in 1/2
>watt that range from $0.14 to $0.17 each in single
>quantities.  The actual price depends on the
>resistance of the component.
>
>You should be able to find the actual resistance in
>one of the lists.  Considering the original value was
>probably no better than 1%, those would be the least
>expensive.  However, if the resistor does turn out to
>be of a value that is only on the 0.1% list then they
>are available although at a much higher price.
>
>For a signal generator attenuator the 1/4 watt
>resistors should have adequate power handling
>capabilities.
>
>Glen, K9STH
>
>
>--- JFran10657 at aol.com wrote:
>
>My question is has anyone rebuilt one of the
>attenuaters and is there any  advice you can share
>with me,especially the precision resistors(where is a
>good source?)
>
>
>=====
>Glen, K9STH
>
>Web sites
>
>http://home.comcast.net/~k9sth
>http://home.comcast.net/~zcomco
>
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