TCXO is a Temperature Compensated Xtal Oscillator, not quite as stable as a crystal in an oven. On the other hand a TCXO starts up quickly vs. waiting for a chunk of aluminum to heat up and stabilize. Sherpa Doug > -----Original Message----- > From: Mick Kent [mailto:mkent@BLOMAND.NET] > Sent: Tuesday, October 02, 2001 1:38 PM > To: PICLIST@MITVMA.MIT.EDU > Subject: Re: [EE]: crystal oven cct? > > > Digi-Key has a ESC inc. TCXO page 419 of cat. T013 > ----- Original Message ----- > From: "Norman Gillaspie" > To: > Sent: Tuesday, October 02, 2001 12:11 PM > Subject: Re: [EE]: crystal oven cct? > > > | There was an article in EDN Magazine. This months issue > about using a > | power fet for doing this and driving it with 5 volt logic and a > | thermistor. > | > | PCS Engineering > | 325 Sharon Park Dr. #210 > | Menlo Park, Ca 94070 > | Tel 650-854-5263 > | FAX 650-472-6436 > | Email norman@pcseng.com > | www.pcseng.com > | > | "Your Connecting Link" > | > | > | -----Original Message----- > | From: pic microcontroller discussion list > | [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Lawrence Glaister > | Sent: Friday, September 28, 2001 3:25 PM > | To: PICLIST@MITVMA.MIT.EDU > | Subject: [EE]: crystal oven cct? > | > | greetings, > | I am building a 10mhz xtal frequency standard and am looking for a > | circuit diagram for a simple temperature regulator. I have the > | oscillator running in a small cast aluminum box and my idea > was to bolt > | a power transistor to the case and use that as the variable heating > | element. I would then mount the whole unit inside a block of foam > | insulation. I would like to hold the crystal at a non critical > | temperature between 35-50C. Any ideas? > | cheers > | -- > | > | > ===================================================================== > | Lawrence Glaister VE7IT mailto:lg@jfm.bc.ca > | 1462 Madrona Drive http://jfm.bc.ca/ > | Nanoose Bay, B.C. > http://members.home.com/cncstuff > | Canada V9P 9C9 http://gspy.sourceforge.net > | > ===================================================================== > | > | -- > | http://www.piclist.com hint: To leave the PICList > | mailto:piclist-unsubscribe-request@mitvma.mit.edu > | > | -- > | http://www.piclist.com#nomail Going offline? Don't AutoReply us! > | email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > | > | > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > > > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body