[time-nuts] HP 106B quartz frequency standard...the story

ron hunt resolver99 at hotmail.com
Mon Aug 10 20:53:16 UTC 2009


Hi!I Have The Exact 1854-0003 HP Part.If You Still Need It I Will Be Happy To Send It No Charge.I May Need Some Help Some Day.Let Me Know Your Shipping Address.
 
> Date: Sun, 9 Aug 2009 19:15:33 -0600
> From: djl at montana.com
> To: time-nuts at febo.com
> Subject: Re: [time-nuts] HP 106B quartz frequency standard...the story
> 
> carefully crack open the old to8 can to expose the leads internally, strip
> out the old transistor and cobble the to220 on top with appropriate leads.
> The to220 should fit under one of the old mounting screws? one direction
> will give the base and emitter connections properly.
> Don
> Jim Palfreyman
> > Thanks for that! - I do have a number of the 5254L units and one of
> > them is now being eyed off for organ donation. So thanks to all offers
> > for the 1854-0003.
> >
> > The 2N1701 in a T08 is my next quest...
> >
> > 2009/8/10 Dave M <masondg44 at comcast.net>:
> >>> Hi all,
> >>>
> >>> Latest update.
> >>>
> >>> With some help and phone calls from Bill the fault seems to have been
> >>> isolated. I have removed Q11 from inside the oven and it is cactus. Q9
> >>> is also very suspect so I'm going to replace that for good measure.
> >>>
> >>> Q9 is a 2N1701 in a T08 package. Thanks to various people I should be
> >>> able to track one down. Q11 is marked as 1854-0003 and that's an HP
> >>> internal number and all I know. Might have to substitute that one.
> >>>
> >>> After all this I have some quality photos and can knock up some good
> >>> descriptions of the repairs and the 106B internals if anyone is
> >>> interested. Any websites hanging around that want to take what I have?
> >>>
> >>> Regards and thanks to all!
> >>>
> >>> Jim Palfreyman
> >>>
> >>>
> >>
> >>
> >> Jim, the 1854-0003 is a pretty common HP part in older eqpt. If you
> >> have
> >> junked 5245L counter handy, it's full of them, especially in the decade
> >> counter PCBs. If you don't have one handy, I have an assembly here with
> >> 8
> >> of them on it. If you like, I can send it right away (if you're outside
> >> the
> >> USA, you pay postage).
> >>
> >> Dave M
> >> masondg44 at comcast dot net
> >>
> >> I went to a bookstore and asked the saleswoman, "Where's the
> >> self-help section?" She said if she told me, it would defeat the
> >> purpose.
> >>
> >>
> >>
> >>
> >>
> >> _______________________________________________
> >> time-nuts mailing list -- time-nuts at febo.com
> >> To unsubscribe, go to
> >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> >> and follow the instructions there.
> >>
> >
> > _______________________________________________
> > time-nuts mailing list -- time-nuts at febo.com
> > To unsubscribe, go to
> > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> > and follow the instructions there.
> >
> 
> 
> -- 
> Dr. Don Latham AJ7LL
> Six Mile Systems LLP
> 17850 Six Mile Road
> POB 134
> Huson, MT, 59846
> VOX 406-626-4304
> www.lightningforensics.com
> www.sixmilesystems.com
> 
> 
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.

_________________________________________________________________
Get free photo software from Windows Live
http://www.windowslive.com/online/photos?ocid=PID23393::T:WLMTAGL:ON:WL:en-US:SI_PH_software:082009


More information about the Time-nuts_lists.febo.com mailing list