> 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.

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@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@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >

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@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@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@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

Don Latham wrote: > 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. You scare me... :) Cheers, Magnus

Well one of my old 5245L devices submitted to organ donation. After opening it up I found many many transistors. None of which were the 1854-0003. Are you sure that's what you have? Regards, Jim > > 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

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@montana.com > To: time-nuts@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@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@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@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@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

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 <resolver99@hotmail.com>: > > 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@montana.com >> To: time-nuts@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@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@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@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@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 > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >

Jim: This place: http://store.americanmicrosemiconductor.com/2n1701.html claims to have some at about $8.00 apiece... 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 <resolver99@hotmail.com>: >> >> 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@montana.com >>> To: time-nuts@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@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@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@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@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 >> _______________________________________________ >> time-nuts mailing list -- time-nuts@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@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

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 <resolver99@hotmail.com>: >> >> 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@montana.com >>> To: time-nuts@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@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@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@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@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 >> _______________________________________________ >> time-nuts mailing list -- time-nuts@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@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

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 <djl@montana.com>: > 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 <resolver99@hotmail.com>: >>> >>> 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@montana.com >>>> To: time-nuts@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@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@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@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@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 >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@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@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@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >