[AMRadio] Request for Most Common Capacitor Values to be Reproduced
Sorry for the multiple list posting, but time is short and max input is desired. Got a call from a friend this afternoon who is talking with a capacitor manufacturer about producing some caps for the radio, guitar amp, and audio crowd. We've talked about this in the past but never got to it. Now it looks like it will happen. The question is, what values would be the most handy to have supplied into the future for restoring old gear? Obviously we can't do a lot of oddball values as we're mainly looking for values that will sell well and be attractive from a production prospective. The few that popped to mind for me were: .1, .01, and .47 mfd at both 400 and 600 vdc. I also specified axial lead instead of the radial leads found on Orange drops since axial leads are better suited to our needs. I'm looking for other values that are likely to be encountered often enough to warrant production. Maybe 6-12 different values to choose from. These would be caps used for bypassing and such, not filtering. I suspect we could get them 'banded' for the foil side as well if folks feel that is important enough. The meeting is set for tomorrow, so timely input is critical. We're *not* looking for a list of manufacturers who already make caps as we believe more is better in this case. Some values are already getting difficult to find. TNX - ~ Todd, KA1KAQ/4 __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] Request for Most Common Capacitor Values to be Reproduced
Todd, you may not be aware that there are a number of such sources already on the market. Most cap values are available already. The issue is that these axial caps are expensive. So if you could get caps for reasonable prices you would help the market. -73- Peter K2LRC www.k2lrc.com In God We Trust ! -Original Message- From: amradio-boun...@mailman.qth.net [mailto:amradio-boun...@mailman.qth.net] On Behalf Of Todd, KA1KAQ Sent: Monday, May 03, 2010 6:32 PM To: Discussion of AM Radio in the Amateur Service; milsurplus; Boatanchors; National Radio Equipment; Hallicrafters Reflector Subject: [AMRadio] Request for Most Common Capacitor Values to be Reproduced Sorry for the multiple list posting, but time is short and max input is desired. Got a call from a friend this afternoon who is talking with a capacitor manufacturer about producing some caps for the radio, guitar amp, and audio crowd. We've talked about this in the past but never got to it. Now it looks like it will happen. The question is, what values would be the most handy to have supplied into the future for restoring old gear? Obviously we can't do a lot of oddball values as we're mainly looking for values that will sell well and be attractive from a production prospective. The few that popped to mind for me were: .1, .01, and .47 mfd at both 400 and 600 vdc. I also specified axial lead instead of the radial leads found on Orange drops since axial leads are better suited to our needs. I'm looking for other values that are likely to be encountered often enough to warrant production. Maybe 6-12 different values to choose from. These would be caps used for bypassing and such, not filtering. I suspect we could get them 'banded' for the foil side as well if folks feel that is important enough. The meeting is set for tomorrow, so timely input is critical. We're *not* looking for a list of manufacturers who already make caps as we believe more is better in this case. Some values are already getting difficult to find. TNX - ~ Todd, KA1KAQ/4 __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] Request for Most Common Capacitor Values to be Reproduced
+/- 20% Modern material will make the capacitors smaller than original so I would suggest to go with only 600V .001 .0022 .0039 .005 .01 .022 .039 .05 or .047 .1 .15 .22 -Original Message- From: amradio-boun...@mailman.qth.net [mailto:amradio-boun...@mailman.qth.net] On Behalf Of Todd, KA1KAQ Sent: Monday, May 03, 2010 5:32 PM To: Discussion of AM Radio in the Amateur Service; milsurplus; Boatanchors; National Radio Equipment; Hallicrafters Reflector Subject: [AMRadio] Request for Most Common Capacitor Values to be Reproduced Sorry for the multiple list posting, but time is short and max input is desired. Got a call from a friend this afternoon who is talking with a capacitor manufacturer about producing some caps for the radio, guitar amp, and audio crowd. We've talked about this in the past but never got to it. Now it looks like it will happen. The question is, what values would be the most handy to have supplied into the future for restoring old gear? Obviously we can't do a lot of oddball values as we're mainly looking for values that will sell well and be attractive from a production prospective. The few that popped to mind for me were: .1, .01, and .47 mfd at both 400 and 600 vdc. I also specified axial lead instead of the radial leads found on Orange drops since axial leads are better suited to our needs. I'm looking for other values that are likely to be encountered often enough to warrant production. Maybe 6-12 different values to choose from. These would be caps used for bypassing and such, not filtering. I suspect we could get them 'banded' for the foil side as well if folks feel that is important enough. The meeting is set for tomorrow, so timely input is critical. We're *not* looking for a list of manufacturers who already make caps as we believe more is better in this case. Some values are already getting difficult to find. TNX - ~ Todd, KA1KAQ/4 __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] Request for Most Common Capacitor Values to be Reproduced
Hi Todd and All, Instead of re-inventing the wheel why don't we use one of our own who is already in the business? I refer to Tom N0JMY at Hayseed Hamfest. The name does NOT reflect the quality of his products. He is building custom electrolytics but certainly could come up with a list of common caps. Tom's a good guy with many satisified customers. I believe we should try to keep this kind of products from within if possible. 73 Lary WA9VRH - Original Message - From: Todd, KA1KAQ ka1...@gmail.com To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net; milsurplus milsurp...@mailman.qth.net; Boatanchors boatanch...@mailman.qth.net; National Radio Equipment natio...@mailman.qth.net; Hallicrafters Reflector hallicraft...@mailman.qth.net Sent: Monday, May 03, 2010 5:31 PM Subject: [AMRadio] Request for Most Common Capacitor Values to be Reproduced Sorry for the multiple list posting, but time is short and max input is desired. Got a call from a friend this afternoon who is talking with a capacitor manufacturer about producing some caps for the radio, guitar amp, and audio crowd. We've talked about this in the past but never got to it. Now it looks like it will happen. The question is, what values would be the most handy to have supplied into the future for restoring old gear? Obviously we can't do a lot of oddball values as we're mainly looking for values that will sell well and be attractive from a production prospective. The few that popped to mind for me were: .1, .01, and .47 mfd at both 400 and 600 vdc. I also specified axial lead instead of the radial leads found on Orange drops since axial leads are better suited to our needs. I'm looking for other values that are likely to be encountered often enough to warrant production. Maybe 6-12 different values to choose from. These would be caps used for bypassing and such, not filtering. I suspect we could get them 'banded' for the foil side as well if folks feel that is important enough. The meeting is set for tomorrow, so timely input is critical. We're *not* looking for a list of manufacturers who already make caps as we believe more is better in this case. Some values are already getting difficult to find. TNX - ~ Todd, KA1KAQ/4 __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] Request for Most Common Capacitor Values to be Reproduced
Well, as I mentioned Larry, we're looking to get them *produced* by a capacitor company, not to sell them. This means another source for Tom or anyone else to possibly use now or in the future. The way I look at it, the more sources we can have producing these discreet components in a surface-mount world, the better. Aside from Tom, the only other source I'm aware of for decent Electrolytics like Twist-Loks is AES, and the values they offer are limited. I'd hate to see that happen with polyester and other caps too. Orange Drops are great caps but the axial leads are a pita to deal with at times. Sure, there are manufacturers cranking some values out now, but who knows how long they will be around? This is mainly an insurance/safety in numbers issue more than anything, based on the fact that we have an opening presented to us. To answer your question Barry, the hope is that they will be something close to tubular with axial leads. It really depends on the size and equipment they use to manufacture them. No idea yet on price but they'd be crazy not to be competitive with other manufacturers. Since they are an established company, I'm guessing it will be okay. No audiophool approach here. I appreciate the input, guys. I'll distill the values and send them along. No guarantees at this point that it will happen, but you need to start somewhere. ~ Todd (surprised you remembered the old nickname, Tom!), KA1KAQ/4 On Mon, May 3, 2010 at 7:58 PM, Larry WA9VRH wa9...@dishmail.net wrote: Hi Todd and All, Instead of re-inventing the wheel why don't we use one of our own who is already in the business? I refer to Tom N0JMY at Hayseed Hamfest. The name does NOT reflect the quality of his products. He is building custom electrolytics but certainly could come up with a list of common caps. Tom's a good guy with many satisified customers. I believe we should try to keep this kind of products from within if possible. 73 Lary WA9VRH - Original Message - From: Todd, KA1KAQ ka1...@gmail.com To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net; milsurplus milsurp...@mailman.qth.net; Boatanchors boatanch...@mailman.qth.net; National Radio Equipment natio...@mailman.qth.net; Hallicrafters Reflector hallicraft...@mailman.qth.net Sent: Monday, May 03, 2010 5:31 PM Subject: [AMRadio] Request for Most Common Capacitor Values to be Reproduced Sorry for the multiple list posting, but time is short and max input is desired. Got a call from a friend this afternoon who is talking with a capacitor manufacturer about producing some caps for the radio, guitar amp, and audio crowd. We've talked about this in the past but never got to it. Now it looks like it will happen. The question is, what values would be the most handy to have supplied into the future for restoring old gear? Obviously we can't do a lot of oddball values as we're mainly looking for values that will sell well and be attractive from a production prospective. The few that popped to mind for me were: .1, .01, and .47 mfd at both 400 and 600 vdc. I also specified axial lead instead of the radial leads found on Orange drops since axial leads are better suited to our needs. I'm looking for other values that are likely to be encountered often enough to warrant production. Maybe 6-12 different values to choose from. These would be caps used for bypassing and such, not filtering. I suspect we could get them 'banded' for the foil side as well if folks feel that is important enough. The meeting is set for tomorrow, so timely input is critical. We're *not* looking for a list of manufacturers who already make caps as we believe more is better in this case. Some values are already getting difficult to find. TNX - ~ Todd, KA1KAQ/4 __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [AMRadio] Request for Most Common Capacitor Values to be Reproduced
One of the best sources for high voltage E-Caps and other HV capacitors for feed-thru and bypass -that I recently found for recapping my Viking II and 75A-4 boatanchors is www.justradios.com They have a very large selection encompassing different types, sizes, and working dc voltages- and the best thing about them is that they have excellent prices compared to others on the web, with one standard shipping price of $4.90 for surface or $6.90 for airmail, regardless of the size of the order. They have an Excel order form on their website for ordering that is quite convenient to use, which is then e-mailed to them. Bottomline: I was extremely pleased with the quality of their capacitors, and the quick service that they provided- and especially their excellent prices compared to several other on-line electronic component dealers on the web. All the Best, Jim, N6MV - Original Message - From: Todd, KA1KAQ ka1...@gmail.com To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net Cc: Boatanchors boatanch...@mailman.qth.net; National Radio Equipment natio...@mailman.qth.net; milsurplus milsurp...@mailman.qth.net; Hallicrafters Reflector hallicraft...@mailman.qth.net; Tom at Hayseed Hamfest t...@hayseedhamfest.com Sent: Monday, May 03, 2010 5:17 PM Subject: Re: [AMRadio] Request for Most Common Capacitor Values to beReproduced Well, as I mentioned Larry, we're looking to get them *produced* by a capacitor company, not to sell them. This means another source for Tom or anyone else to possibly use now or in the future. The way I look at it, the more sources we can have producing these discreet components in a surface-mount world, the better. Aside from Tom, the only other source I'm aware of for decent Electrolytics like Twist-Loks is AES, and the values they offer are limited. I'd hate to see that happen with polyester and other caps too. Orange Drops are great caps but the axial leads are a pita to deal with at times. Sure, there are manufacturers cranking some values out now, but who knows how long they will be around? This is mainly an insurance/safety in numbers issue more than anything, based on the fact that we have an opening presented to us. To answer your question Barry, the hope is that they will be something close to tubular with axial leads. It really depends on the size and equipment they use to manufacture them. No idea yet on price but they'd be crazy not to be competitive with other manufacturers. Since they are an established company, I'm guessing it will be okay. No audiophool approach here. I appreciate the input, guys. I'll distill the values and send them along. No guarantees at this point that it will happen, but you need to start somewhere. ~ Todd (surprised you remembered the old nickname, Tom!), KA1KAQ/4 On Mon, May 3, 2010 at 7:58 PM, Larry WA9VRH wa9...@dishmail.net wrote: Hi Todd and All, Instead of re-inventing the wheel why don't we use one of our own who is already in the business? I refer to Tom N0JMY at Hayseed Hamfest. The name does NOT reflect the quality of his products. He is building custom electrolytics but certainly could come up with a list of common caps. Tom's a good guy with many satisified customers. I believe we should try to keep this kind of products from within if possible. 73 Lary WA9VRH - Original Message - From: Todd, KA1KAQ ka1...@gmail.com To: Discussion of AM Radio in the Amateur Service amradio@mailman.qth.net; milsurplus milsurp...@mailman.qth.net; Boatanchors boatanch...@mailman.qth.net; National Radio Equipment natio...@mailman.qth.net; Hallicrafters Reflector hallicraft...@mailman.qth.net Sent: Monday, May 03, 2010 5:31 PM Subject: [AMRadio] Request for Most Common Capacitor Values to be Reproduced Sorry for the multiple list posting, but time is short and max input is desired. Got a call from a friend this afternoon who is talking with a capacitor manufacturer about producing some caps for the radio, guitar amp, and audio crowd. We've talked about this in the past but never got to it. Now it looks like it will happen. The question is, what values would be the most handy to have supplied into the future for restoring old gear? Obviously we can't do a lot of oddball values as we're mainly looking for values that will sell well and be attractive from a production prospective. The few that popped to mind for me were: .1, .01, and .47 mfd at both 400 and 600 vdc. I also specified axial lead instead of the radial leads found on Orange drops since axial leads are better suited to our needs. I'm looking for other values that are likely to be encountered often enough to warrant production. Maybe 6-12 different values to choose from. These would be caps used for bypassing and such, not filtering. I suspect we could get them 'banded' for the foil side as well if folks feel that is important enough. The meeting is set for tomorrow, so timely
