Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
Should get the 5 volts with the usual 3-legged fuse :-) ?? Don Rex > FWIW. I just hapened on this power supply in an ad. You might find a > fixed voltage one somewhere cheaper, but the price seemed ok, so here it > is for consideration... > http://www.mpja.com/email/12-13-11.asp?r=284759&s=2 > > Still need the 5 V somehow, so not a complete solution for the 5680A. > > > On 12/19/2011 3:06 PM, gandal...@aol.com wrote: >> In a message dated 19/12/2011 22:27:22 GMT Standard Time, c...@omen.com >> writes: >> >> This thing requires plenty of current to get started. >> My Tek CPS250 1.2 amp output (A+B parallel) only gets 7.5 volts. >> Now to scrounge something a bit bigger. >> - >> The 15 volts to pin 1 starts off needing to supply around 1.7 Amps, >> eventually falling to somewhere between 700 and 800 mA. >> >> Pin 4 always draws around 85 to 90 mA from its 5 volt supply. >> >> regards >> >> Nigel >> GM8PZR >> > > > ___ > 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. > -- "Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind." R. Bacon "If you don't know what it is, don't poke it." Ghost in the Shell 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
I also got an FE5680A, what a deal. Thanks to earlier postings I had the correct pin out, info on the 1/16 hex key and the command set. It needs 5V on pin 4 to operate. After 24 hours mine ran 6 mHz low compared to my GPS-based 10 MHz. I opened the case by removing the 2 flat head screws near the connector and the 2 pan head screws in recesses in the center of the base plate. I noticed what looked like smoke residue from a blown part, as have others, but no sign of a bad part. The LPRO-101 has a flat surface and a thermal pad for heat transfer over the whole base. The FE-5680A injects heat into the base plate in the center and sinks it around the edges. Good magnetic shielding and thermal transfer may require using most of the 16 mounting holes. I found "Termite 2.7" from CompuPhase worked to communicate with the FE-5680A in Windows. I set the COM port, 9600 baud, local echo, append nothing and hex view. I sent 0x2D040029 to get the offset. The "0x" lets the program know the number is in hex. My offset was 0, same as others have mentioned. Possibly the FE-5680 was controlled externally to sync up the 1pps output to GPS using the "set temporary offset" command. I wonder if there's a status command, analogous to the lamp voltage test point on the LPRO-101. Bob -Original Message- From: Chuck Forsberg WA7KGX N2469R Sent: Monday, December 19, 2011 2:25 PM To: li...@lazygranch.com ; Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these My 5680A arrived today. Mailman demanded a signature. This thing requires plenty of current to get started. My Tek CPS250 1.2 amp output (A+B parallel) only gets 7.5 volts. Now to scrounge something a bit bigger. -- Chuck Forsberg WA7KGX N2469R c...@omen.com www.omen.com Developer of Industrial ZMODEM(Tm) for Embedded Applications Omen Technology Inc "The High Reliability Software" 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430 ___ 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
A milled flat surface and/or thermal paste is not required for heat transfer, it just makes it better. There must be some removal of heat; consider that to reach thermal equilibrium the heat flow out of the unit must match the power absorbed. It seems that about 12 watts is going in, so eventually 12 watts must be flowing out if the temperature is to remain steady. I would not want mine to run at 60C, I would rather it be at a more reasonable 35-40C on the baseplate, just for the electronics. I am going to mount mine to an existing aluminum panel in my target unit using the provided mounting holes and be done with it. Peter On 12/20/2011 12:18 PM, John Howell wrote: Agreed 340mA seems too high, mine takes 87mA. There has been much comment on [time_nuts] about the temperature of these units varying from 'let 'em get hot' to 'must heatsink'. In my experience items that require a heatsink have a milled flat surface to mount to a sink, not a thin case that would only touch in places. Furthermore I didn't think fiberglass circuit board was famous for its heat conducting properties. No sign of any heat transfer compound either. So do I conclude they need a bit of cooling? I agree with you Pete and would really like to know what the makers say about all this! Best wishes, John. On 20 Dec 2011, at 16:22, Peter Bell wrote: 340mA seems really high - all the ones I've seen take about 90mA - and I would strongly recommend putting in on a heatsink, or at least bolting it directly to the chassis. In my experience, they don't actually malfunction when operated without one, but the housing gets very hot (and, presumably, the insides get hotter still) - after 24h running sitting on a foam mouse mat open to the air, the case hit about 59c - I can't help thinking that isn't going to be good for the long-term health of the unit. Regards, Pete On Wed, Dec 21, 2011 at 12:03 AM, Chuck Forsberg WA7KGX N2469R wrote: Mine requires the 5 volt supply at 340 ma. Are there nay manufacturer's instructions about mounting, ventilating, or heat sinking these units? My current thinking is to mount it on standoffs on the back of the chassis that houses my Thunderbolt. Perhaps I should place it where it can warm up Princess. (Notice the magnet on top of the oscillator.) On 12/20/2011 07:13 AM, Roy Phillips wrote: -- From: "Rex" Sent: Tuesday, December 20, 2011 1:10 PM To: "Discussion of precise time and frequency measurement" Subject: Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these FWIW. I just hapened on this power supply in an ad. You might find a fixed voltage one somewhere cheaper, but the price seemed ok, so here it is for consideration... http://www.mpja.com/email/12-13-11.asp?r=284759&s=2 Still need the 5 V somehow, so not a complete solution for the 5680A. On 12/19/2011 3:06 PM, gandal...@aol.com wrote: In a message dated 19/12/2011 22:27:22 GMT Standard Time, c...@omen.com writes: This thing requires plenty of current to get started. My Tek CPS250 1.2 amp output (A+B parallel) only gets 7.5 volts. Now to scrounge something a bit bigger. - The 15 volts to pin 1 starts off needing to supply around 1.7 Amps, eventually falling to somewhere between 700 and 800 mA. Pin 4 always draws around 85 to 90 mA from its 5 volt supply. regards Nigel GM8PZR Nigel I trust that you are aware that some models of the FE-5680A only require the 15 volt/1.7Amp. supply. In fact connecting a 5 volt supply to the units that are programmable can cause damage ! Roy ___ 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. -- Chuck Forsberg WA7KGX N2469R c...@omen.com www.omen.com Developer of Industrial ZMODEM(Tm) for Embedded Applications Omen Technology Inc "The High Reliability Software" 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430 ___ 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 instruc
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
Agreed 340mA seems too high, mine takes 87mA. There has been much comment on [time_nuts] about the temperature of these units varying from 'let 'em get hot' to 'must heatsink'. In my experience items that require a heatsink have a milled flat surface to mount to a sink, not a thin case that would only touch in places. Furthermore I didn't think fiberglass circuit board was famous for its heat conducting properties. No sign of any heat transfer compound either. So do I conclude they need a bit of cooling? I agree with you Pete and would really like to know what the makers say about all this! Best wishes, John. On 20 Dec 2011, at 16:22, Peter Bell wrote: > 340mA seems really high - all the ones I've seen take about 90mA - and > I would strongly recommend putting in on a heatsink, or at least > bolting it directly to the chassis. In my experience, they don't > actually malfunction when operated without one, but the housing gets > very hot (and, presumably, the insides get hotter still) - after 24h > running sitting on a foam mouse mat open to the air, the case hit > about 59c - I can't help thinking that isn't going to be good for the > long-term health of the unit. > > Regards, > > Pete > > > On Wed, Dec 21, 2011 at 12:03 AM, Chuck Forsberg WA7KGX N2469R > wrote: >> Mine requires the 5 volt supply at 340 ma. >> >> Are there nay manufacturer's instructions about mounting, ventilating, >> or heat sinking these units? >> >> My current thinking is to mount it on standoffs on the back of the chassis >> that houses my Thunderbolt. >> >> Perhaps I should place it where it can warm up Princess. >> (Notice the magnet on top of the oscillator.) >> >> >> On 12/20/2011 07:13 AM, Roy Phillips wrote: >>> >>> >>> >>> ------------------------------ >>> From: "Rex" >>> Sent: Tuesday, December 20, 2011 1:10 PM >>> To: "Discussion of precise time and frequency measurement" >>> >>> Subject: Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for >>> these >>> >>>> FWIW. I just hapened on this power supply in an ad. You might find a >>>> fixed voltage one somewhere cheaper, but the price seemed ok, so here it is >>>> for consideration... >>>> http://www.mpja.com/email/12-13-11.asp?r=284759&s=2 >>>> >>>> Still need the 5 V somehow, so not a complete solution for the 5680A. >>>> >>>> >>>> On 12/19/2011 3:06 PM, gandal...@aol.com wrote: >>>>> >>>>> In a message dated 19/12/2011 22:27:22 GMT Standard Time, c...@omen.com >>>>> writes: >>>>> >>>>> This thing requires plenty of current to get started. >>>>> My Tek CPS250 1.2 amp output (A+B parallel) only gets 7.5 volts. >>>>> Now to scrounge something a bit bigger. >>>>> - >>>>> The 15 volts to pin 1 starts off needing to supply around 1.7 Amps, >>>>> eventually falling to somewhere between 700 and 800 mA. >>>>> >>>>> Pin 4 always draws around 85 to 90 mA from its 5 volt supply. >>>>> >>>>> regards >>>>> >>>>> Nigel >>>>> GM8PZR >>>>> >>>> >>>> Nigel >>> >>> I trust that you are aware that some models of the FE-5680A only require >>> the 15 volt/1.7Amp. supply. In fact connecting a 5 volt supply to the >>> units that are programmable can cause damage ! >>> Roy >>> >>>> ___ >>>> 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. >>> >> >> -- >> Chuck Forsberg WA7KGX N2469R c...@omen.com www.omen.com >> Developer of Industrial ZMODEM(Tm) for Embedded Applications >> Omen Technology Inc "The High Reliability Software" >> 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430 >> >> >> ___ >> 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
340mA seems really high - all the ones I've seen take about 90mA - and I would strongly recommend putting in on a heatsink, or at least bolting it directly to the chassis. In my experience, they don't actually malfunction when operated without one, but the housing gets very hot (and, presumably, the insides get hotter still) - after 24h running sitting on a foam mouse mat open to the air, the case hit about 59c - I can't help thinking that isn't going to be good for the long-term health of the unit. Regards, Pete On Wed, Dec 21, 2011 at 12:03 AM, Chuck Forsberg WA7KGX N2469R wrote: > Mine requires the 5 volt supply at 340 ma. > > Are there nay manufacturer's instructions about mounting, ventilating, > or heat sinking these units? > > My current thinking is to mount it on standoffs on the back of the chassis > that houses my Thunderbolt. > > Perhaps I should place it where it can warm up Princess. > (Notice the magnet on top of the oscillator.) > > > On 12/20/2011 07:13 AM, Roy Phillips wrote: >> >> >> >> -- >> From: "Rex" >> Sent: Tuesday, December 20, 2011 1:10 PM >> To: "Discussion of precise time and frequency measurement" >> >> Subject: Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for >> these >> >>> FWIW. I just hapened on this power supply in an ad. You might find a >>> fixed voltage one somewhere cheaper, but the price seemed ok, so here it is >>> for consideration... >>> http://www.mpja.com/email/12-13-11.asp?r=284759&s=2 >>> >>> Still need the 5 V somehow, so not a complete solution for the 5680A. >>> >>> >>> On 12/19/2011 3:06 PM, gandal...@aol.com wrote: >>>> >>>> In a message dated 19/12/2011 22:27:22 GMT Standard Time, c...@omen.com >>>> writes: >>>> >>>> This thing requires plenty of current to get started. >>>> My Tek CPS250 1.2 amp output (A+B parallel) only gets 7.5 volts. >>>> Now to scrounge something a bit bigger. >>>> - >>>> The 15 volts to pin 1 starts off needing to supply around 1.7 Amps, >>>> eventually falling to somewhere between 700 and 800 mA. >>>> >>>> Pin 4 always draws around 85 to 90 mA from its 5 volt supply. >>>> >>>> regards >>>> >>>> Nigel >>>> GM8PZR >>>> >>> >>> Nigel >> >> I trust that you are aware that some models of the FE-5680A only require >> the 15 volt/1.7Amp. supply. In fact connecting a 5 volt supply to the >> units that are programmable can cause damage ! >> Roy >> >>> ___ >>> 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. >> > > -- > Chuck Forsberg WA7KGX N2469R c...@omen.com www.omen.com > Developer of Industrial ZMODEM(Tm) for Embedded Applications > Omen Technology Inc "The High Reliability Software" > 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430 > > > ___ > 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
Mine requires the 5 volt supply at 340 ma. Are there nay manufacturer's instructions about mounting, ventilating, or heat sinking these units? My current thinking is to mount it on standoffs on the back of the chassis that houses my Thunderbolt. Perhaps I should place it where it can warm up Princess. (Notice the magnet on top of the oscillator.) On 12/20/2011 07:13 AM, Roy Phillips wrote: -- From: "Rex" Sent: Tuesday, December 20, 2011 1:10 PM To: "Discussion of precise time and frequency measurement" Subject: Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these FWIW. I just hapened on this power supply in an ad. You might find a fixed voltage one somewhere cheaper, but the price seemed ok, so here it is for consideration... http://www.mpja.com/email/12-13-11.asp?r=284759&s=2 Still need the 5 V somehow, so not a complete solution for the 5680A. On 12/19/2011 3:06 PM, gandal...@aol.com wrote: In a message dated 19/12/2011 22:27:22 GMT Standard Time, c...@omen.com writes: This thing requires plenty of current to get started. My Tek CPS250 1.2 amp output (A+B parallel) only gets 7.5 volts. Now to scrounge something a bit bigger. - The 15 volts to pin 1 starts off needing to supply around 1.7 Amps, eventually falling to somewhere between 700 and 800 mA. Pin 4 always draws around 85 to 90 mA from its 5 volt supply. regards Nigel GM8PZR Nigel I trust that you are aware that some models of the FE-5680A only require the 15 volt/1.7Amp. supply. In fact connecting a 5 volt supply to the units that are programmable can cause damage ! Roy ___ 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. -- Chuck Forsberg WA7KGX N2469R c...@omen.com www.omen.com Developer of Industrial ZMODEM(Tm) for Embedded Applications Omen Technology Inc "The High Reliability Software" 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430 <>___ 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
Ebay 300638681652 is more like it. Just add a 7805 to get your 5 volts. For that kind of price it's almost cheaper to buy than to pay for gas plus time for me to go to my storage unit and grab one (maybe that's a lesson for what I should even save!). In my intended application though, there is already +5 and +15 available. Peter On 12/20/2011 10:13 AM, Roy Phillips wrote: -- From: "Rex" Sent: Tuesday, December 20, 2011 1:10 PM To: "Discussion of precise time and frequency measurement" Subject: Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these FWIW. I just hapened on this power supply in an ad. You might find a fixed voltage one somewhere cheaper, but the price seemed ok, so here it is for consideration... http://www.mpja.com/email/12-13-11.asp?r=284759&s=2 Still need the 5 V somehow, so not a complete solution for the 5680A. On 12/19/2011 3:06 PM, gandal...@aol.com wrote: In a message dated 19/12/2011 22:27:22 GMT Standard Time, c...@omen.com writes: This thing requires plenty of current to get started. My Tek CPS250 1.2 amp output (A+B parallel) only gets 7.5 volts. Now to scrounge something a bit bigger. - The 15 volts to pin 1 starts off needing to supply around 1.7 Amps, eventually falling to somewhere between 700 and 800 mA. Pin 4 always draws around 85 to 90 mA from its 5 volt supply. regards Nigel GM8PZR Nigel I trust that you are aware that some models of the FE-5680A only require the 15 volt/1.7Amp. supply. In fact connecting a 5 volt supply to the units that are programmable can cause damage ! Roy ___ 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. - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1415 / Virus Database: 2108/4092 - Release Date: 12/20/11 ___ 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
-- From: "Rex" Sent: Tuesday, December 20, 2011 1:10 PM To: "Discussion of precise time and frequency measurement" Subject: Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these FWIW. I just hapened on this power supply in an ad. You might find a fixed voltage one somewhere cheaper, but the price seemed ok, so here it is for consideration... http://www.mpja.com/email/12-13-11.asp?r=284759&s=2 Still need the 5 V somehow, so not a complete solution for the 5680A. On 12/19/2011 3:06 PM, gandal...@aol.com wrote: In a message dated 19/12/2011 22:27:22 GMT Standard Time, c...@omen.com writes: This thing requires plenty of current to get started. My Tek CPS250 1.2 amp output (A+B parallel) only gets 7.5 volts. Now to scrounge something a bit bigger. - The 15 volts to pin 1 starts off needing to supply around 1.7 Amps, eventually falling to somewhere between 700 and 800 mA. Pin 4 always draws around 85 to 90 mA from its 5 volt supply. regards Nigel GM8PZR Nigel I trust that you are aware that some models of the FE-5680A only require the 15 volt/1.7Amp. supply. In fact connecting a 5 volt supply to the units that are programmable can cause damage ! Roy ___ 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
FWIW. I just hapened on this power supply in an ad. You might find a fixed voltage one somewhere cheaper, but the price seemed ok, so here it is for consideration... http://www.mpja.com/email/12-13-11.asp?r=284759&s=2 Still need the 5 V somehow, so not a complete solution for the 5680A. On 12/19/2011 3:06 PM, gandal...@aol.com wrote: In a message dated 19/12/2011 22:27:22 GMT Standard Time, c...@omen.com writes: This thing requires plenty of current to get started. My Tek CPS250 1.2 amp output (A+B parallel) only gets 7.5 volts. Now to scrounge something a bit bigger. - The 15 volts to pin 1 starts off needing to supply around 1.7 Amps, eventually falling to somewhere between 700 and 800 mA. Pin 4 always draws around 85 to 90 mA from its 5 volt supply. regards Nigel GM8PZR ___ 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
On Tue, Dec 20, 2011 at 1:08 PM, Chuck Forsberg WA7KGX N2469R wrote: > It took about 32 minutes to make lock. Before that it was > cycling between about +75 and -200 Hz. That seems rather slow - I just checked the 4 units I have here (D/C 0321, 0330, 0342 and 0349) and they all locked in under 3:30 from cold - the fastest was just under 2:58. Regards, Pete ___ 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
Got mine going with a 15 volt 3 amp supply from an old Toshiba. That and 5 volts. It took about 32 minutes to make lock. Before that it was cycling between about +75 and -200 Hz. The FE-5680A 10 MHz is now off by .002 Hz compared to the Thunderbolt. I placed a magnet on the case. It appears I can fine tune the frequency by adjusting the position and rotation of the magnet. Film at 11. -- Chuck Forsberg WA7KGX N2469R c...@omen.com www.omen.com Developer of Industrial ZMODEM(Tm) for Embedded Applications Omen Technology Inc "The High Reliability Software" 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430 ___ 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
In a message dated 19/12/2011 22:27:22 GMT Standard Time, c...@omen.com writes: This thing requires plenty of current to get started. My Tek CPS250 1.2 amp output (A+B parallel) only gets 7.5 volts. Now to scrounge something a bit bigger. - The 15 volts to pin 1 starts off needing to supply around 1.7 Amps, eventually falling to somewhere between 700 and 800 mA. Pin 4 always draws around 85 to 90 mA from its 5 volt supply. regards Nigel GM8PZR ___ 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
My 5680A arrived today. Mailman demanded a signature. This thing requires plenty of current to get started. My Tek CPS250 1.2 amp output (A+B parallel) only gets 7.5 volts. Now to scrounge something a bit bigger. -- Chuck Forsberg WA7KGX N2469R c...@omen.com www.omen.com Developer of Industrial ZMODEM(Tm) for Embedded Applications Omen Technology Inc "The High Reliability Software" 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430 ___ 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
Or the shipper didn't pack it well. UPS is very generous on insurance payments IF the shipper doesn't have a history of issues. The stores that use the custom foam scheme you see often on ebay were stores already nabbed by UPS for too many damage claims. As far as I know, the Customs House just does paperwork. Breaking stuff is left to the package handlers. Everything I ever got from China has been USPS. Slow boat from China is more than an expression. ;-) --Original Message-- From: J. Forster To: li...@lazygranch.com To: Discussion of precise time and frequency measurement ReplyTo: j...@quikus.com Subject: Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these Sent: Dec 14, 2011 9:00 AM Yeah. UPS has a Customs Broker... staffed by 600 pound gorillas. They succeeded in breaking my cast iron antenna base about 1/2" thick and weighing over 40 pounds. -John === > Paying duty on foreign purchases is always a crap shoot. Often you don't > get charged at all. Other times the item is held and you pony up the duty. > > I got an item through Fedex and they came after me two years later for the > duty. I refused to pay because I couldn't even remember if I paid the duty > when I got the item. > > UPS has their own customs house. Way more professional than Fedex. > > ___ > 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
Yeah. UPS has a Customs Broker... staffed by 600 pound gorillas. They succeeded in breaking my cast iron antenna base about 1/2" thick and weighing over 40 pounds. -John === > Paying duty on foreign purchases is always a crap shoot. Often you don't > get charged at all. Other times the item is held and you pony up the duty. > > I got an item through Fedex and they came after me two years later for the > duty. I refused to pay because I couldn't even remember if I paid the duty > when I got the item. > > UPS has their own customs house. Way more professional than Fedex. > > ___ > 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
Paying duty on foreign purchases is always a crap shoot. Often you don't get charged at all. Other times the item is held and you pony up the duty. I got an item through Fedex and they came after me two years later for the duty. I refused to pay because I couldn't even remember if I paid the duty when I got the item. UPS has their own customs house. Way more professional than Fedex. ___ 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
On 14 December 2011 01:13, Frederick Bray wrote: > Anyone who is interested in buying these units should take a look at the > completed listings and be guided accordingly when making an offer. I > recently picked up a couple for ~ $35 each, including shipping. True the > price may be going up, but it looks like you can still get them for under > $40 with shipping if you don't mind waiting for the slow boat from China. > For experimentation, that is still a good deal. > > (I must admit that I didn't "need" them, but want to try pairing them with a > couple Thunderbolts.) I bought a couple off of someone who sold them on eBay, though it was not an ebay purchase. But he used god alful courier that wanting paying the import duties by bank transfer or cheque before they would deliver the goods. I thought I would be able to ring up with a Visa card and pay, but was told they could not take credit or debit cards over the phone. But I did get a couple for a pretty good deal. ___ 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
Anyone who is interested in buying these units should take a look at the completed listings and be guided accordingly when making an offer. I recently picked up a couple for ~ $35 each, including shipping. True the price may be going up, but it looks like you can still get them for under $40 with shipping if you don't mind waiting for the slow boat from China. For experimentation, that is still a good deal. (I must admit that I didn't "need" them, but want to try pairing them with a couple Thunderbolts.) ___ 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.
Re: [time-nuts] Ebay FE-5680A Rb I see the price has gone up for these
Make an offer and see what happens. On 12/13/11, paul swed wrote: I guess they figured out they had some value. Such is life. Regards Paul WB8TSL/1 ___ time-nuts mailing list -- [1]time-nuts@febo.com To unsubscribe, go to [2]https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. References 1. mailto:time-nuts@febo.com 2. https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts ___ 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] Ebay FE-5680A Rb I see the price has gone up for these
I guess they figured out they had some value. Such is life. Regards Paul WB8TSL/1 ___ 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.
