Yep this is where I found it too. Looks like an excellent shop. US$22 postage is steep too.
Jim 2009/8/11 Don Latham <[email protected]>: > Also, the following: > http://www.sphere.bc.ca/test/ > is one of the best spare parts sites for test equipment that I know of. > they're good folks. > Don > > Jim Palfreyman >> Hi all, >> >> The transistor in my unit (not a 4B model!) is 1854-0015. Lots of those. >> >> If someone can confirm this is identical to 1854-0003 I'll use it. >> Otherwise I may have to take up one of the very kind offers! >> >> On the 2N1701 - it has to be in a T08 package. This transistor sits in >> a special heat sink that is bolted to the oven wall. So unfortunately >> I can't substitute. >> >> Regards, >> >> Jim >> >> >> 2009/8/11 ron hunt <[email protected]>: >>> >>> 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: [email protected] >>>> To: [email protected] >>>> 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 <[email protected]>: >>>> >>> 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 -- [email protected] >>>> >> To unsubscribe, go to >>>> >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>> >> and follow the instructions there. >>>> >> >>>> > >>>> > _______________________________________________ >>>> > time-nuts mailing list -- [email protected] >>>> > 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 -- [email protected] >>>> 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 >>> _______________________________________________ >>> time-nuts mailing list -- [email protected] >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >>> >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> 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 -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
