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| Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Old Transistors
Does anyone know of a method of either locating or finding information
about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. I can't seem to find any supplier that has them so I am presuming they are no longer manufactured. Thanks for whatever help you can give me. Ron Thompson |
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#2
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In article ,
Ron Thompson wrote: Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. I can't seem to find any supplier that has them so I am presuming they are no longer manufactured. Thanks for whatever help you can give me. Can't even find them in Towers. ;-) -- *I have plenty of talent and vision. I just don't care. Dave Plowman London SW To e-mail, change noise into sound. |
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#3
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"Ron Thompson" wrote in message ... Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. I can't seem to find any supplier that has them so I am presuming they are no longer manufactured. Thanks for whatever help you can give me. 2N5809 ===== Mil Spec http://www.dscc.dla.mil/Downloads/Mi...19500ss438.pdf Ammendment http://www.dscc.dla.mil/Downloads/Mi...00ss438am1.pdf The military stopped using them in 1999... http://www.dscc.dla.mil/Downloads/Mi...groupinact.pdf The above links found here http://www.dscc.dla.mil/Programs/Mil...=MIL-PRF-19500 2N9614 ====== Sure that numbers right? No hits using Google is unusual. Usually someone wants to sell you the data! |
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#4
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This site
http://www.sphere.bc.ca/test/service.html has a 2N961 (no 4 on the end). No idea if that's the same part. |
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#5
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Ron-
The 2N5809 is a small signal plastic case low noise, hi gain transistor typically by Motorola used for audio applications. I used these in the early 70's with good success. As I recall, hfe is on the order of 250, Vce about 30v. I may have one or two left. Bryant |
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#6
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Colin:
Thank you for your timely response to my inquiry and for informing me of the MilSpec website. I agree with you that maybe the code number for the other transistor is probably incorrect; unfortunately I don't know what the correct number is. Oh well. In case you might be interested: Before I got your response I managed to locate a site that contains a world of datasheets on electronic components: http://www.chipdocs.com/ It had a list of manufacturers of the 2N5809 transistor that was in the MilSpecs. If only the other one had the correct number then I would be "home free". But I guess you just can't always get what you want! Thanks again. Ron |
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#7
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Bryant:
I have discovered that there are some manufacturers who still make the 2N5809 so I could still get them. But without info about the other one I am stymied. Thanks anyway for your response and kind offer! Ron |
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#8
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"bryant" wrote in message oups.com... Ron- The 2N5809 is a small signal plastic case low noise, hi gain transistor typically by Motorola used for audio applications. I used these in the early 70's with good success. As I recall, hfe is on the order of 250, Vce about 30v. I may have one or two left. According the to the Mil spec I posted types 2N5806 to 2N5809 are "Silicon bi-directional triode thyristor" with voltage ratings of 200-600V |
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#9
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"Ron Thompson" wrote in message ... Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. I can't seem to find any supplier that has them so I am presuming they are no longer manufactured. Thanks for whatever help you can give me. It might help if you told us why you want to know. Repairing something? Building an old kit? N |
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#10
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On Mon, 27 Jun 2005 03:48:37 -0700, Ron Thompson
wrote: Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. I can't seem to find any supplier that has them so I am presuming they are no longer manufactured. Thanks for whatever help you can give me. Ron Thompson Not the exact thing, but, if used wisely, may help you for one of them. http://nte01.nteinc.com/nte/NTExRefS...CreateDocument Tom |
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Good question. I am wanting to construct an inexpensive biofeedback monitor.
I have found an original patent from 1972 for one that works on the "galvanic skin response" principle that fits the bill. The patent number is 3648686. The patent has long since expired so there would be no problem there. All components mentioned are presently available except for the 2N9614 transistor. Perhaps someone may know of another plan for building a similar device. If so let please me know! Ron |
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#12
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"Ron Thompson" wrote in message ... Good question. I am wanting to construct an inexpensive biofeedback monitor. I have found an original patent from 1972 for one that works on the "galvanic skin response" principle that fits the bill. The patent number is 3648686. The patent has long since expired so there would be no problem there. All components mentioned are presently available except for the 2N9614 transistor. Perhaps someone may know of another plan for building a similar device. If so let please me know! OK. A) Never get hung up on parts like this. You can usually substitute any similar item you can find. If it doesn't work, you just make an adjustment. B) "Popular Electronics" magazine has had articles on this sort of thing. They even had one which read brain waves and analysed them. Your model is a simple "Lie Detector". At one time I believe Radio Shack sold something similar as a toy! http://www.atarimagazines.com/v4n11/LieDetector.html http://www.jasonbradbury.com/jason_b...detector_.html http://www.aaroncake.net/circuits/lie.htm N |
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#13
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If you have a schematic that you can scan, you might want to upload it
and post a link here. I, or someone else can surely determine the specs needed for the application. Make sure it has good resolution and please don't try to post it directly, they don't like that. This is considered a "text only" newsgroup. Anyway, another reason to see the schematic is that if the intended part was germanium some modification may be necessary to use a modern equivalent. This would mainly be in the base bias, but if the circuit needs a low saturation voltage, there are transistors that can do it. In fact I'll see if I casn get the patent, you might not have to do anything. JURB |
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#14
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2n5809 is a triac, but can't find any info on 2n9614
"Ron Thompson" wrote in message ... Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. I can't seem to find any supplier that has them so I am presuming they are no longer manufactured. Thanks for whatever help you can give me. Ron Thompson |
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#15
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"CWatters" bravely wrote to "All" (27 Jun 05 13:21:11)
--- on the heady topic of " Old Transistors" CW From: "CWatters" CW Xref: aeinews sci.electronics.repair:51657 sci.electronics.misc:19871 CW sci.electronics.equipment:8120 CW "Ron Thompson" wrote in message CW ... Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. I can't seem to find any supplier that has them so I am presuming they are no longer manufactured. Thanks for whatever help you can give me. CW 2N5809 CW =3d=3d=3d=3d=3d CW Mil Spec CW http://www.dscc.dla.mil/Downloads/Mi...500/mil19500ss CW 438.pdf Ammendment CW http://www.dscc.dla.mil/Downloads/Mi...500/mil19500ss CW 438am1.pdf CW The military stopped using them in 1999... CW http://www.dscc.dla.mil/Downloads/Mi...500/prf19500gr CW oupinact.pdf CW The above links found here CW http://www.dscc.dla.mil/Programs/Mil...Doc=3dMIL-PRF- CW 19500 CW 2N9614 CW =3d=3d=3d=3d=3d=3d CW Sure that numbers right? No hits using Google is unusual. Usually CW someone wants to sell you the data! I think the op might have added the 2N prefix to 9614. Look under FSC9614 or other Fairchild prefix, perhaps TCS even... A*s*i*m*o*v .... Well I defragged my TV and went all the way back to basic cable! |
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"Ron Thompson" wrote in message ... Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. I can't seem to find any supplier that has them so I am presuming they are no longer manufactured. Thanks for whatever help you can give me. Ron Thompson What are they used in? If you're trying to replace them, it may be easiest to look at the circuit and guess on a suitable sub. |
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#17
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a 2n5809 is a triac, 600v or btx94
"Ron Thompson" wrote in message ... Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. I can't seem to find any supplier that has them so I am presuming they are no longer manufactured. Thanks for whatever help you can give me. Ron Thompson |
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#18
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This message is for all who have evidenced an interest.
I made a typo in my original request. One of the transistors is 2N5089 not 2N5809. This one is available from an internet supplier. Sorry!! I have also located an FSC9614 transistor. Thanks to Asimov for this tip. So my question has been answered and I can proceed building the monitor. Also, NSM mentioned that Radio Shack used to sell them. The reason I want to build one is because the one I originally purchased from Radio Shack has been irreparably damaged. I found the patent number in Radio Shack's brochure which I still had. An e-mail to Radio Shack produced the information that RS stopped manufacturing them in 1995. Ron |
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"sideshow bob" wrote in message u... a 2n5809 is a triac, 600v or btx94 Sounds wrong for a lie detector. N |
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#20
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In article , Ron Thompson
wrote: Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. Ron- Take another look. Could the second one be a 2N961A? I don't think the JEDEC numbers were that high in the early 70s. Fred |
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#21
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"Fred McKenzie" wrote in message ... In article , Ron Thompson wrote: Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. Ron- Take another look. Could the second one be a 2N961A? I don't think the JEDEC numbers were that high in the early 70s. Fred My old '69 Motorola Manual stops at the 2N5500 point. The 2N5809 might be a valid number for that time period. But it's not in the Moto manual. :-( |
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#22
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the 2n5809 is not a transistor but rather a hefty stud mount Triac, if my
memory serves me... around 30 or 40 Amps. the 2n961 is an RF/IF PNP Germanium transistor, metal can TO18... I used them in some ham radio projects in the late 60's. ..... there is no 2n9614.... check the number again. -- Best Regards, Daniel Sofie Electronics Supply & Repair - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - "Watson A.Name - "Watt Sun, the Dark Remover"" wrote in message ... "Fred McKenzie" wrote in message ... In article , Ron Thompson wrote: Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. Ron- Take another look. Could the second one be a 2N961A? I don't think the JEDEC numbers were that high in the early 70s. Fred My old '69 Motorola Manual stops at the 2N5500 point. The 2N5809 might be a valid number for that time period. But it's not in the Moto manual. :-( |
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"Watson A.Name - \"Watt Sun, the Dark Remover\""
wrote in news:11d7f1dffdhl672 @corp.supernews.com: "Fred McKenzie" wrote in message ... In article , Ron Thompson wrote: Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. Ron- Take another look. Could the second one be a 2N961A? I don't think the JEDEC numbers were that high in the early 70s. Fred My old '69 Motorola Manual stops at the 2N5500 point. The 2N5809 might be a valid number for that time period. But it's not in the Moto manual. :-( I have the second edition of General Electric transistor manual , the highest listed are 2N3524 , 3N86, roma |
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#24
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On Fri, 09 Sep 2005 05:07:51 GMT, roma wrote:
Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. Using Yahoo (the only search engine IMHO) I found this for "2n5809" Part Number = 2N5809 Description = Triac Manufacturer = Various V(DRM) Max.(V)Rep.Pk.Off Volt. = 600 I(T(RMS)) Max.(A)On-State Cur. = 25 @Temp. (°C) (Test Condition) = 80 I(TSM) Max. (A) = 200 @ t(w) (s) (Test Condition) = 16m I(GT) Max. (A) = 120m V(GT) Max.(V) = 4.0 I(H) Max.(A) Holding Current = 100m I(D) Max. (A) Leakage Current = 2.0m @Temp. (°C) (Test Condition) = 115 V(T) Max. (V) = 1.6 @I(T) (A) (Test Condition) = 35 Package = TO-208var1/4 I couldn't find anything on the other one. |
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On Fri, 09 Sep 2005 05:07:51 GMT, roma put finger to
keyboard and composed: "Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote in news:11d7f1dffdhl672 : "Fred McKenzie" wrote in message ... In article , Ron Thompson wrote: Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. NTE's cross for the 2N5809 is the NTE5547: http://www.nteinc.com/specs/5500to5599/NTE5541.html The 2N961/46 and 2N961 both cross to an NTE160: http://www.nteinc.com/specs/100to199/NTE160.html -- Franc Zabkar Please remove one 'i' from my address when replying by email. |
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#26
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On 2005-09-09 16:32:03 -0700, Robby said:
On Fri, 09 Sep 2005 05:07:51 GMT, roma wrote: Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. Using Yahoo (the only search engine IMHO) I found this for "2n5809" Part Number = 2N5809 Description = Triac Manufacturer = Various V(DRM) Max.(V)Rep.Pk.Off Volt. = 600 ... I couldn't find anything on the other one. Neither can I find anything on a 2N9614. My data books go back to 1968...nothing in the 70's was higher than 2N6xxx that I can find. I recommend the original poster take a closer look at that transistor (thyristor?) with a microscope and get a better read on the part number. He is from Canada, perhaps he can contact me directly if he is on the west coast. I'm in Vancouver, BC. John :-#)# -- (Please post followups or tech enquires to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
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#27
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On Mon, 27 Jun 2005 03:48:37 -0700, Ron Thompson
wrote: Does anyone know of a method of either locating or finding information about transistors that were manufactured in 1972? I am specifically interested in locating or finding info on two transistors; their codes a 2N5809 and 2N9614. I can't seem to find any supplier that has them so I am presuming they are no longer manufactured. Thanks for whatever help you can give me. Ron Thompson The 2N9614 is mentioned in a patent as a PNP Transistor. United States Patent 5524894 Head movement sensor for golf practice Issued on June 11, 1996 http://www.patentstorm.us/patents/5524894.html |
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