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#1
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Do a web search for the part number, and you'll get quite a few hits
showing sites that have them for sale. Roy Lewallen, W7EL Mike Silva wrote: Caution: this may be the most unimportant post you read today (or this month, or this year, or...) Anyway, I haven't been in the market for QRP-level transistors for a long time, having laid in a lifetime's supply years ago, but today just for fun I searched for some of the usual suspects from the past (2N3553, 2N3866, 2N4427, MRF237, 2N5109, 2SC799, etc) on Ebay and found almost nothing to be had. This greatly surprised me, as I was expecting to find all of my old friends readily available. So, are the "old standards" really hard to find now, or are they still readily available (outside of Ebay), or what??? I have to mention the irony that I am able to find any vacuum tube I could possibly want on Ebay, including dozens of types that would make excellent QRP finals, from a seemingly unlimited number of sellers! :-) 73, Mike, KK6GM |
#2
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Do a web search for the part number, and you'll get quite a few hits
showing sites that have them for sale. Roy Lewallen, W7EL Mike Silva wrote: Caution: this may be the most unimportant post you read today (or this month, or this year, or...) Anyway, I haven't been in the market for QRP-level transistors for a long time, having laid in a lifetime's supply years ago, but today just for fun I searched for some of the usual suspects from the past (2N3553, 2N3866, 2N4427, MRF237, 2N5109, 2SC799, etc) on Ebay and found almost nothing to be had. This greatly surprised me, as I was expecting to find all of my old friends readily available. So, are the "old standards" really hard to find now, or are they still readily available (outside of Ebay), or what??? I have to mention the irony that I am able to find any vacuum tube I could possibly want on Ebay, including dozens of types that would make excellent QRP finals, from a seemingly unlimited number of sellers! :-) 73, Mike, KK6GM |
#3
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![]() "Mike Silva" wrote in message om... Caution: this may be the most unimportant post you read today (or this month, or this year, or...) Anyway, I haven't been in the market for QRP-level transistors for a long time, having laid in a lifetime's supply years ago, but today just for fun I searched for some of the usual suspects from the past (2N3553, 2N3866, 2N4427, MRF237, 2N5109, 2SC799, etc) on Ebay and found almost nothing to be had. This greatly surprised me, as I was expecting to find all of my old friends readily available. So, are the "old standards" really hard to find now, or are they still readily available (outside of Ebay), or what??? Those devices don't seem to be manufactured any more. I checked a couple of manufacturers' web sites a couple of weeks ago and couldn't find them. One or two suppliers here in the UK still stock them, but they are quite expensive. Leon -- Leon Heller, G1HSM http://www.geocities.com/leon_heller |
#4
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![]() "Mike Silva" wrote in message om... Caution: this may be the most unimportant post you read today (or this month, or this year, or...) Anyway, I haven't been in the market for QRP-level transistors for a long time, having laid in a lifetime's supply years ago, but today just for fun I searched for some of the usual suspects from the past (2N3553, 2N3866, 2N4427, MRF237, 2N5109, 2SC799, etc) on Ebay and found almost nothing to be had. This greatly surprised me, as I was expecting to find all of my old friends readily available. So, are the "old standards" really hard to find now, or are they still readily available (outside of Ebay), or what??? Those devices don't seem to be manufactured any more. I checked a couple of manufacturers' web sites a couple of weeks ago and couldn't find them. One or two suppliers here in the UK still stock them, but they are quite expensive. Leon -- Leon Heller, G1HSM http://www.geocities.com/leon_heller |
#5
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use a wildcard, as some of the devices are quite specific in their
descriptors -- thus if you want a 2SC799 and someone is selling a 2SC799A it won't search up -- ergo search with 2SC79* "Mike Silva" wrote in message om... Caution: this may be the most unimportant post you read today (or this month, or this year, or...) Anyway, I haven't been in the market for QRP-level transistors for a long time, having laid in a lifetime's supply years ago, but today just for fun I searched for some of the usual suspects from the past (2N3553, 2N3866, 2N4427, MRF237, 2N5109, 2SC799, etc) on Ebay and found almost nothing to be had. This greatly surprised me, as I was expecting to find all of my old friends readily available. So, are the "old standards" really hard to find now, or are they still readily available (outside of Ebay), or what??? I have to mention the irony that I am able to find any vacuum tube I could possibly want on Ebay, including dozens of types that would make excellent QRP finals, from a seemingly unlimited number of sellers! :-) 73, Mike, KK6GM |
#6
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use a wildcard, as some of the devices are quite specific in their
descriptors -- thus if you want a 2SC799 and someone is selling a 2SC799A it won't search up -- ergo search with 2SC79* "Mike Silva" wrote in message om... Caution: this may be the most unimportant post you read today (or this month, or this year, or...) Anyway, I haven't been in the market for QRP-level transistors for a long time, having laid in a lifetime's supply years ago, but today just for fun I searched for some of the usual suspects from the past (2N3553, 2N3866, 2N4427, MRF237, 2N5109, 2SC799, etc) on Ebay and found almost nothing to be had. This greatly surprised me, as I was expecting to find all of my old friends readily available. So, are the "old standards" really hard to find now, or are they still readily available (outside of Ebay), or what??? I have to mention the irony that I am able to find any vacuum tube I could possibly want on Ebay, including dozens of types that would make excellent QRP finals, from a seemingly unlimited number of sellers! :-) 73, Mike, KK6GM |
#7
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"John Walton" wrote in message ...
use a wildcard, as some of the devices are quite specific in their descriptors -- thus if you want a 2SC799 and someone is selling a 2SC799A it won't search up -- ergo search with 2SC79* Your advice is on the mark. I've gotten to the point where I *never* spell out an entire word or part number on ebay! Hint to hams: lots of sellers can't spell "amateur" :-) 73, Mike, KK6GM |
#8
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"John Walton" wrote in message ...
use a wildcard, as some of the devices are quite specific in their descriptors -- thus if you want a 2SC799 and someone is selling a 2SC799A it won't search up -- ergo search with 2SC79* Your advice is on the mark. I've gotten to the point where I *never* spell out an entire word or part number on ebay! Hint to hams: lots of sellers can't spell "amateur" :-) 73, Mike, KK6GM |
#9
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Mike Silva wrote:
John Dyson wrote in message ... I recently had to look for something similar. A current part might be the NEC (CEL) NE46134... It is probably a little faster than parts like the 2N3866, and also is lower voltage, but for a new design might be somewhat useful (and current.) Thanks. Is there a current "List of desirable RF transistors for 2003" floating around? If not, would anybody else like to contribute some part numbers here? I dont' have any 'lists' per-se, but you might want to look at www.cel.com (for the US rep and info for NEC transistors.) philips and siemens (infineon.com) also have a current line of RF components. For slightly higher frequencies, the agilent phemts are actually really practical for as low as 50MHz (but probably 200MHz in reality.) For RF gain modules, the sirenza (sp) parts are really good (and in some cases, the original OEM for the Minicircuits gain parts.) (Their SiGe parts are usually reasonably priced, have low NF as low as 1.9dB, and SiGe parts tend to have good low frequency NF also.) The manufacturers that I listed above tend to have fairly good spec sheets and have SOME US availability. Often, there is the terrible issue of QTY3000 type order requirements, but that isn't always a problem. For distributors, you can try mouser.com, newark.com, avnet.com?, etc. Mouser has a fairly good stock, and so does newark... Sometimes, the distributors have 'good deals' on designers kits. The designers kits usually have anywhere from QTY3 per part number on up to QTY10 or higher. I usually play the game of looking at the suppliers spec sheets, and the distributor's availability lists, and then compare the two. (I know that this isn't directly answering your need/questions, but can get you started if no other info is provided to you!!!) John |
#10
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Mike Silva wrote:
John Dyson wrote in message ... I recently had to look for something similar. A current part might be the NEC (CEL) NE46134... It is probably a little faster than parts like the 2N3866, and also is lower voltage, but for a new design might be somewhat useful (and current.) Thanks. Is there a current "List of desirable RF transistors for 2003" floating around? If not, would anybody else like to contribute some part numbers here? I dont' have any 'lists' per-se, but you might want to look at www.cel.com (for the US rep and info for NEC transistors.) philips and siemens (infineon.com) also have a current line of RF components. For slightly higher frequencies, the agilent phemts are actually really practical for as low as 50MHz (but probably 200MHz in reality.) For RF gain modules, the sirenza (sp) parts are really good (and in some cases, the original OEM for the Minicircuits gain parts.) (Their SiGe parts are usually reasonably priced, have low NF as low as 1.9dB, and SiGe parts tend to have good low frequency NF also.) The manufacturers that I listed above tend to have fairly good spec sheets and have SOME US availability. Often, there is the terrible issue of QTY3000 type order requirements, but that isn't always a problem. For distributors, you can try mouser.com, newark.com, avnet.com?, etc. Mouser has a fairly good stock, and so does newark... Sometimes, the distributors have 'good deals' on designers kits. The designers kits usually have anywhere from QTY3 per part number on up to QTY10 or higher. I usually play the game of looking at the suppliers spec sheets, and the distributor's availability lists, and then compare the two. (I know that this isn't directly answering your need/questions, but can get you started if no other info is provided to you!!!) John |
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