"Ray cal" Sent from Paragon RC6 Captivate
Max Robinson <m...@maxsmusicplace.com> wrote: >Forgive someone revealing his ignorance but what is the pronunciation of >Racal? > >Regards. > >Max. K 4 O D S. > >Email: m...@maxsmusicplace.com > >Transistor site http://www.funwithtransistors.net >Vacuum tube site: http://www.funwithtubes.net >Music site: http://www.maxsmusicplace.com > >To subscribe to the fun with transistors group send an email to. >funwithtransistors-subscr...@yahoogroups.com > >To subscribe to the fun with tubes group send an email to, >funwithtubes-subscr...@yahoogroups.com > >----- Original Message ----- >From: "Bob Camp" <li...@rtty.us> >To: "Discussion of precise time and frequency measurement" ><time-nuts@febo.com> >Sent: Thursday, August 25, 2011 4:37 PM >Subject: Re: [time-nuts] Racal 9420 OCXO > > >Hi > >…. and *much* better specified performance than the Racal parts. > >Bob > > >On Aug 25, 2011, at 5:13 PM, Rob Kimberley wrote: > >> I seem to remember Racal in the UK buying some Datum (FTS Division) 1000B >> units off me in the 90's. >> >> http://www.n4iqt.com/fts1000b/1000b-r2.pdf >> >> Nice oscillator. >> >> Rob Kimberley >> >> -----Original Message----- >> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On >> Behalf Of Robert Atkinson >> Sent: 25 August 2011 5:24 PM >> To: Discussion of precise time and frequency measurement >> Subject: Re: [time-nuts] Racal 9420 OCXO >> >> I'm pretty sure Racal made these. They are of consistent design over >> different models and many years and are unlike any other manufacturers >> OXCO >> I've seen. Racal were old school and did prettymuch everything themselves. >> The did do what appears to be a licence built Sulzer though. The MA-259, >> see >> http://www.radiomuseum.org/r/racal_precision_frequency_stan.html >> >> Regards, >> Robert G8RPI. >> >> >> --- On Thu, 25/8/11, Bob Camp <li...@rtty.us> wrote: >> >> From: Bob Camp <li...@rtty.us> >> Subject: Re: [time-nuts] Racal 9420 OCXO >> To: "'Discussion of precise time and frequency measurement'" >> <time-nuts@febo.com> >> Date: Thursday, 25 August, 2011, 17:01 >> >> Hi >> >> Do we know for sure that Racal actually made these OCXO's in house? >> >> My *guess* is that they were made by various companies over the years and >> sold to Racal. The "return for service" would have been a return to Racal >> and then they forward it to the people who made it... >> >> Bob >> >> -----Original Message----- >> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On >> Behalf Of paul swed >> Sent: Wednesday, August 24, 2011 5:10 PM >> To: Discussion of precise time and frequency measurement >> Subject: Re: [time-nuts] Racal 9420 OCXO >> >> Kind of amazing what time-nuts have in there secret documentation. >> Though I do not need this thanks for sharing. >> Regards >> Paul >> WB8TSL >> >> On Wed, Aug 24, 2011 at 4:05 PM, Robert Atkinson >> <robert8...@yahoo.co.uk>wrote: >> >>> Hi, >>> I've attached a copy of the catalogue specification for Racals OCXOs. >>> They do have electronic trim as standard. They are used in the 9478 >>> frequency standard. The 9478 service manual specfically states that no >>> information >> on >>> the OCXOs is provided and they must be returned to Racal or appointed >> agents >>> for repair. >>> >>> Robert G8RPI >>> >>> --- On Wed, 24/8/11, gandal...@aol.com <gandal...@aol.com> wrote: >>> >>> From: gandal...@aol.com <gandal...@aol.com> >>> Subject: Re: [time-nuts] Racal 9420 OCXO >>> To: time-nuts@febo.com >>> Date: Wednesday, 24 August, 2011, 16:03 >>> >>> In a message dated 24/08/2011 00:03:19 GMT Daylight Time, >>> dan...@verizon.net writes: >>> >>> I don't think Racal released circuit diagrams of any of their ovens. >>> I have traced out the circuit of the rapid warm up oven found in a >>> lot of receivers, the 9442-12 and have fixed those, there is a ceramic >>> cap that frequently goes wonky. The two 9420s I have fixed were just >>> broken wires; they seem to have used PVC insulated wire which >>> degrades... I haven't done the homework on those yet. >>> >>> The 9420s I have do have an EFC input as well as a stabilised Voltage >>> out to feed it, and in the receivers I have that use it [RA1795] the >>> fine setting is done from that, coarse setting from the top adjustment. >>> ------------------------- >>> Hi Dan >>> >>> I've taken a further look at the RA1794 manual and see now that it >>> does confirm a fine tune pot being available when using the 9420. >>> Having opened up this oscillator I find there are connections to >>> every >> pin >>> on the B7G connector so will assume until proven otherwise that it >>> does meet the interface spec shown in the 1794 manual. >>> I suspect the comments I've seen claiming most do not have the EFC >>> option is more a case that in many installations it isn't used, which >>> isn't >> quite >>> the same thing. >>> >>> Thanks again for your comments. >>> >>> regards >>> >>> Nigel >>> >>> >>> _______________________________________________ >>> 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. >>> >> _______________________________________________ >> 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. >> _______________________________________________ >> 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. > > >_______________________________________________ >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. _______________________________________________ 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.