Fuse for HP-23B

Thu Aug 20 07:45:27 EDT 1998

OM:
Clearly, a 1-amp breaker is inadequate for a 100-watt rig.  I would estimate it would be more on the order of 7-amps.  For
example, the HP-1144, which powers my SB-104A, has a single 7-am slow-blow fuse in the primary circuit.

73,

Keith

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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