Re: Topband: RFI ferrites
Very good points, Jim, and I agree! As I said earlier, Lynne and the folks at Kreger can point us to the other Fair-Rite distributors - but I expect that the same advice still applies! In my past experience, I was dealing with substantial industrial quantities for electricity meters etc. and the designer kits were generally supplied free of charge to a large customer. Not to be expected here. Charlie, K4OTV Charles Cunningham, Jr. PE -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Jim Brown Sent: Saturday, May 18, 2013 2:13 AM To: topband@contesting.com Subject: Re: Topband: RFI ferrites On 5/17/2013 8:41 AM, Charlie Cunningham wrote: > Contact Lynne Frye at Kreger Components, Inc. Salem, VA. I've done biz with Kreiger at least once and been pleased. Do not waste your money and their time buying small quantities of ferrite parts. Appendix One of my RFI tutorial includes Fair-Rite part numbers of the useful parts, a list of known good vendors, and a worksheet to help hams decide how many they should buy based on their operating habits. If you're buying small quantity (less than a few boxes) it pays to call multiple distributors -- those with stock left over from a big order will be cheaper. Organize a group purchase of your local club and get quantity discounts that make the parts you need very inexpensive. I've been part of at least a half dozen such efforts over the years. I typically pay $4-$5 for a 2.4-in o.d. toroid, and $10-$12 for the biggest clamp-ons (1-inch i.d.). Fair-Rite is easy to deal with if you hit their minimums and buy box quantities, and they will drop ship boxes to more than one locations. A box of toroids is 100 pieces, and the biggest clamp-ons are 36 to a box. We do want box quantities because there is much less breakage in full boxes packed by Fair-Rite. 73, Jim K9YC. All good topband ops know how to put up a beverage at night. _ Topband Reflector All good topband ops know how to put up a beverage at night. _ Topband Reflector
Re: Topband: RFI ferrites
On 5/17/2013 8:41 AM, Charlie Cunningham wrote: Contact Lynne Frye at Kreger Components, Inc. Salem, VA. I've done biz with Kreiger at least once and been pleased. Do not waste your money and their time buying small quantities of ferrite parts. Appendix One of my RFI tutorial includes Fair-Rite part numbers of the useful parts, a list of known good vendors, and a worksheet to help hams decide how many they should buy based on their operating habits. If you're buying small quantity (less than a few boxes) it pays to call multiple distributors -- those with stock left over from a big order will be cheaper. Organize a group purchase of your local club and get quantity discounts that make the parts you need very inexpensive. I've been part of at least a half dozen such efforts over the years. I typically pay $4-$5 for a 2.4-in o.d. toroid, and $10-$12 for the biggest clamp-ons (1-inch i.d.). Fair-Rite is easy to deal with if you hit their minimums and buy box quantities, and they will drop ship boxes to more than one locations. A box of toroids is 100 pieces, and the biggest clamp-ons are 36 to a box. We do want box quantities because there is much less breakage in full boxes packed by Fair-Rite. 73, Jim K9YC. All good topband ops know how to put up a beverage at night. _ Topband Reflector
Re: Topband: RFI ferrites
I use a label maker and put the ID on the edge "FT240-XX" when I receive them. 73 - Steve WB6RSE ___ On May 17, 2013, at 8:24 AM, Shoppa, Tim wrote: I like to use a white paint marker to put numbers on big cores as I unpack them :-) Tim N3QE All good topband ops know how to put up a beverage at night. _ Topband Reflector
Re: Topband: RFI ferrites
Contact Lynne Frye at Kreger Components, Inc. Salem, VA. lynne.f...@kregercomponents.com They are a national distributor for Fair-Rite Products: I have used a LOT of their products over the years in my work, and a few (from the Designer Kits) in my ham radio balun, binocular transformers, baluns and RFI suppression work! Excellent supplier and excellent products!! I'll be really surprised if you can't find exactly what you need!! They DO have larger sizes that work with RG-213 etc.. You can tell Lynne that I sent you! (Don't have her phone number handy at the moment) See also their website, catalog and product line at www.kregercomponents.com. Lynne can also point you to other distributors for Fair-Rite products. Feel sure that you won't be disappointed! Good luck and best regards! Charlie Cunningham, K4OTV Charles Cunningham, Jr. PE -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of dospi...@q.com Sent: Friday, May 17, 2013 11:06 AM To: topband@contesting.com Subject: Topband: RFI ferrites HI All: I am looking for a source(s ) for mix 31 ferrites. Especially in the larger sizes, like the FT 240. I have tried the usual suspects . Amidon, Digikey, Mouser, Lodestar Pacific, to no avail. Any leads will be appreciated, either on or off the list. 73 to all Dean W5PJR Tijeras, NM All good topband ops know how to put up a beverage at night. _ Topband Reflector All good topband ops know how to put up a beverage at night. _ Topband Reflector
Re: Topband: RFI ferrites
I have 4 large ones that are brand new that I never used. 1 3/8 ID 2 3/8 od 7/16 thick. Got these from Amidon. On Fri, May 17, 2013 at 8:21 AM, Andy Blank wrote: > Dean here is a great source for stuff like that. > Cheap too. > > http://www.kitsandparts.com/toroids.php > > 73, Andy N2NT > > > On Fri, May 17, 2013 at 11:06 AM, wrote: > > > > > > > > > > > HI All: > > > > > > > > I am looking for a source(s ) for mix 31 ferrites. Especially in the > > larger sizes, like the FT 240. I have tried the usual suspects . Amidon, > > Digikey, Mouser, Lodestar Pacific, to no avail. > > > > > > > > Any leads will be appreciated, either on or off the list. > > > > > > > > 73 to all > > > > > > > > Dean W5PJR > > > > Tijeras, NM > > All good topband ops know how to put up a beverage at night. > > _ > > Topband Reflector > All good topband ops know how to put up a beverage at night. > _ > Topband Reflector > -- Tnx es 73 Richard W7ZR www.w7zr.com *Be joyful in hope, patient in affliction, faithful in prayer* All good topband ops know how to put up a beverage at night. _ Topband Reflector
Re: Topband: RFI ferrites
Hi Dean, Did you search for the right part number? Mouser indicates 748 of the 2.4" 31 mix toroids in stock at $6.94 each. That is where I get mine from. The Fair-Rite part number is 2631803802. 73, Paul N1BUG All good topband ops know how to put up a beverage at night. _ Topband Reflector
Re: Topband: RFI ferrites
Fair-Rite 2631803802 is the Amidon FT-240-31. Available at Mouser, Newark, Arrow, and other places. I have a personal cross-ref between some Amidon and Fair-rite numbers. Not sure if I'd get in trouble for publishing it. I like to use a white paint marker to put numbers on big cores as I unpack them :-) Tim N3QE - Original Message - From: dospi...@q.com [mailto:dospi...@q.com] Sent: Friday, May 17, 2013 11:06 AM To: topband@contesting.com Subject: Topband: RFI ferrites HI All: I am looking for a source(s ) for mix 31 ferrites. Especially in the larger sizes, like the FT 240. I have tried the usual suspects . Amidon, Digikey, Mouser, Lodestar Pacific, to no avail. Any leads will be appreciated, either on or off the list. 73 to all Dean W5PJR Tijeras, NM All good topband ops know how to put up a beverage at night. _ Topband Reflector All good topband ops know how to put up a beverage at night. _ Topband Reflector
Re: Topband: RFI ferrites
Dean here is a great source for stuff like that. Cheap too. http://www.kitsandparts.com/toroids.php 73, Andy N2NT On Fri, May 17, 2013 at 11:06 AM, wrote: > > > > > HI All: > > > > I am looking for a source(s ) for mix 31 ferrites. Especially in the > larger sizes, like the FT 240. I have tried the usual suspects . Amidon, > Digikey, Mouser, Lodestar Pacific, to no avail. > > > > Any leads will be appreciated, either on or off the list. > > > > 73 to all > > > > Dean W5PJR > > Tijeras, NM > All good topband ops know how to put up a beverage at night. > _ > Topband Reflector All good topband ops know how to put up a beverage at night. _ Topband Reflector
Topband: RFI ferrites
HI All: I am looking for a source(s ) for mix 31 ferrites. Especially in the larger sizes, like the FT 240. I have tried the usual suspects . Amidon, Digikey, Mouser, Lodestar Pacific, to no avail. Any leads will be appreciated, either on or off the list. 73 to all Dean W5PJR Tijeras, NM All good topband ops know how to put up a beverage at night. _ Topband Reflector
