My 732b is fine but its transformer bit the dust before I got it. Actually, that's probably WHY I got it on fleabay.. its previous owner changed the battery and still couldn't get it to charge! So it went on fleabay as 'parts/not working'...... for a price I could afford! The primary is cooked. Using a fresh battery powers the standard, though, with a solid 9.99999 volts on my junk 3458 for two months. I just want a transformer for 120V... don't need all the world's voltages. Since it probably won't be guarded, I would unplug the 732 and go on battery to do readouts to avoid powerline crosstalk problems. The best of all worlds would be to get the exact, correct transformer..... Willy

I would first attempt to purchase a OEM replacement from Fluke. You never know it may be reasonably priced. Cheers; Thomas Knox > Date: Wed, 4 Jun 2014 17:16:37 -0400 > From: pitts7@williams-net.com > To: volt-nuts@febo.com > Subject: [volt-nuts] 732b transformer replacement > > My 732b is fine but its transformer bit the dust before I got it. > > Actually, that's probably WHY I got it on fleabay.. its previous > owner changed the battery and still couldn't get it to charge! > So it went on fleabay as 'parts/not working'...... > for a price I could afford! > > The primary is cooked. Using a fresh battery powers the standard, > though, with a solid 9.99999 volts on my junk 3458 for two months. > > I just want a transformer for 120V... don't need all the world's > voltages. Since it probably won't be guarded, I would unplug the > 732 and go on battery to do readouts to avoid powerline crosstalk > problems. > > The best of all worlds would be to get the exact, correct transformer..... > > Willy > _______________________________________________ > volt-nuts mailing list -- volt-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there.

Willy, Have you contacted Fluke about getting a replacement transformer? I would guess it would cost a lot, but one of your other alternatives is to buy the external battery pack when it pops up on fleabay. The last one cost about $700, but I bought mine for less than that. That would give you the the correct part. Your other choice is to feed the 12V from the 9pin adapter. You can get yourself a lab grade power supply or build your own and use it until you decide. The manual states on page 4-13 that you can supply an external 12-15vdc to power the unit. If you contact Fluke, they could probably give you the recommended source settings for the rear jack. You only need to worry once you decide to send it in for cal, which could be whenever you feel the 732B is stable. If you need me to take any measurements from my unit, I will either take it apart or dig out the readings I wrote down last year. By the way, my 732B-7001 had a problem too. The regulator U500 shorted from input to output putting 20+ volts across the battery. The battery sizzled and failed. You might want to check that circuit too in case there are more hidden jems. Good luck these units are nice and easier to tote than a 732A. Todd On Wed, Jun 4, 2014 at 5:16 PM, new <pitts7@williams-net.com> wrote: > My 732b is fine but its transformer bit the dust before I got it. > > Actually, that's probably WHY I got it on fleabay.. its previous > owner changed the battery and still couldn't get it to charge! > So it went on fleabay as 'parts/not working'...... > for a price I could afford! > > The primary is cooked. Using a fresh battery powers the standard, > though, with a solid 9.99999 volts on my junk 3458 for two months. > > I just want a transformer for 120V... don't need all the world's > voltages. Since it probably won't be guarded, I would unplug the > 732 and go on battery to do readouts to avoid powerline crosstalk > problems. > > The best of all worlds would be to get the exact, correct transformer..... > > Willy > _______________________________________________ > volt-nuts mailing list -- volt-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/volt-nuts > and follow the instructions there. >

Have you considered rewinding the transformer? Regards, John   -----Original Message----- From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On Behalf Of new Sent: Wednesday, June 04, 2014 5:17 PM To: volt-nuts@febo.com Subject: [volt-nuts] 732b transformer replacement My 732b is fine but its transformer bit the dust before I got it. Actually, that's probably WHY I got it on fleabay.. its previous owner changed the battery and still couldn't get it to charge! So it went on fleabay as 'parts/not working'...... for a price I could afford! The primary is cooked. Using a fresh battery powers the standard, though, with a solid 9.99999 volts on my junk 3458 for two months. I just want a transformer for 120V... don't need all the world's voltages. Since it probably won't be guarded, I would unplug the 732 and go on battery to do readouts to avoid powerline crosstalk problems. The best of all worlds would be to get the exact, correct transformer..... Willy _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.

In message <174201cf8064$ba75c900$2f615b00$@pcsupportsolutions.com>, "John Allen" writes: >Have you considered rewinding the transformer? I would start out checking very carefully if the wires have broken next to whatever they're soldered onto (lug/wire), one of the most common failure modes is a break right next to the solder-lug. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.

Willy asked me to post this .... I just bought the battery pack on ebay for $700... that was me! Yes, the transformer and regulator board are OK and I have them powering the 732b right now! Can you put this message on volt-nuts for me? I can't figure out the process...... Thanks! Willy On Thu, Jun 5, 2014 at 2:15 AM, Poul-Henning Kamp <phk@phk.freebsd.dk> wrote: > In message <174201cf8064$ba75c900$2f615b00$@pcsupportsolutions.com>, > "John Allen" writes: > > >Have you considered rewinding the transformer? > > I would start out checking very carefully if the wires have broken > next to whatever they're soldered onto (lug/wire), one of the most > common failure modes is a break right next to the solder-lug. > > -- > Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 > phk@FreeBSD.ORG | TCP/IP since RFC 956 > FreeBSD committer | BSD since 4.3-tahoe > Never attribute to malice what can adequately be explained by incompetence. > _______________________________________________ > volt-nuts mailing list -- volt-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. >