Fuse for HP-23B

Thu Aug 20 01:45:15 EDT 1998

Ok folks from the HP-23B manual: Part # 65-17 2.92 amp Circuit Breaker, so
no your 1 ampere Breaker is VERY undersized, should be a nearly 3 ampere
Circuit Breaker. (Didn't know they CAME as 2.92 Ampere units!). And gee its
only .65 cents...in 1975......

Dave
WA4EMR

At 09:08 AM 8/19/98 -0600, Ray Mack wrote:
>This supply comes with a circuit breaker.  The empty holes you see were
for the
>original.  It has about 3/4 inch long red "button" to reset it.  Sounds like
>someone may have broken off the button on the original and replaced it with a
>single hole mount breaker.  I can't help with the value since I have never
had
>to deal with it.  However, one amp sounds way too low for a tube system
that can
>put out almost 100W CW.  1A @ !@) VAC is only 120W.
>
>Ray Mack
>WD5IFS
>mack at mails.imed.com
>
>
>______________________________ Reply Separator
_________________________________
>Subject: Fuse for HP-23B
>Author:  Joan and Ed Richards <jsrich at ROSES.SPARKS.NV.US> at mails
>Date:    8/18/98 4:23 PM
>
>
>Hi Guys:
>I have been reading your mail and have downloaded some interesting things. I
>have answered some of you directly when I thought I may be of help. Now I
need
>help. I am using a HP-23B power supply with an SB-102 transceiver. Every 5
min
>or so the circuit breaker trips. Upon investigation I found the circuit
breaker
>to be rated at 1 amp. This seems light to me and it appears to have been
added.
>At least the hole on the front of the chassis it is mounted in is not
factory.
>The hole is shiny bare metal with burrs on both sides. Also there is a large
>(~1/2") hole and two small (~1/8") holes in the back of the chassis with
nothing
>in them. Also appear to be added.
>Can someone tell me what the original configuration was? Fuse or circuit
>breaker? what amperage rating? Where was it mounted? A manual or at least a
>schematic would be appreciated. I will pay all expenses of course. Thank you
>very much. Ed Richards,   K6UUZ  email <
jsrich at roses.sparks.nv.us><!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
><HTML>
><HEAD>
>
><META content=text/html;charset=iso-8859-1 http-equiv=Content-Type>
><META content='"MSHTML 4.72.2106.6"' name=GENERATOR>
></HEAD>
><BODY bgColor=#ffffff>
><DIV><FONT size=2>Hi Guys:</FONT></DIV>
><DIV><FONT size=2>I have been reading your mail and have downloaded some
>interesting things. I have answered some of you directly when I thought I
may be
>
>of help. Now I need help. I am using a HP-23B power supply with an SB-102
>transceiver. Every 5 min or so the circuit breaker trips. Upon
investigation I
>found the circuit breaker to be rated at 1 amp. This seems light to me and it
>appears to have been added. At least the hole on the front of the chassis
it is
>mounted in is not factory. The hole is shiny bare metal with burrs on both
>sides. Also there is a large (~1/2") hole and two small (~1/8")
holes
>in the back of the chassis with nothing in them. Also appear to be
>added.</FONT></DIV>
><DIV><FONT size=2>Can someone tell me what the original configuration was?
Fuse
>or circuit breaker? what amperage rating? Where was it mounted? A manual
or at
>least a schematic would be appreciated. I will pay all expenses of course.
Thank
>
>you very much. Ed Richards,   K6UUZ  email < <A
>href="mailto:jsrich at roses.sparks.nv.us">jsrich at roses.sparks.nv.us</A>></
FONT>
></DIV></BODY></HTML>

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