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#1
Posted to rec.audio.tubes
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8102 and 5662 info sought
TDSL turned up no info for an 8102 and the only info I can find on the
5662 is that the Radio Amateurs Handbook calls it a "thyratron fuse". So does anyone know what an 8102 is and how is a thyratron fuse different from a normal thyratron. Thank you. Adam |
#2
Posted to rec.audio.tubes
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8102 and 5662 info sought
"Adam Stouffer" TDSL turned up no info for an 8102 and the only info I can find on the 5662 is that the Radio Amateurs Handbook calls it a "thyratron fuse". So does anyone know what an 8102 is and how is a thyratron fuse different from a normal thyratron. ** The 8102 is a noval ( 9 pin) triode / pentode with 13.5 volt heater. It's in the GE " Essential Characteristics" book. ....... Phil |
#3
Posted to rec.audio.tubes
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8102 and 5662 info sought
Phil Allison wrote:
"Adam Stouffer" TDSL turned up no info for an 8102 and the only info I can find on the 5662 is that the Radio Amateurs Handbook calls it a "thyratron fuse". So does anyone know what an 8102 is and how is a thyratron fuse different from a normal thyratron. ** The 8102 is a noval ( 9 pin) triode / pentode with 13.5 volt heater. It's in the GE " Essential Characteristics" book. 5662 = miniature gas thyratron used as a fuse in electric blankets! |
#4
Posted to rec.audio.tubes
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8102 and 5662 info sought
Phil Allison wrote:
"Adam Stouffer" TDSL turned up no info for an 8102 and the only info I can find on the 5662 is that the Radio Amateurs Handbook calls it a "thyratron fuse". So does anyone know what an 8102 is and how is a thyratron fuse different from a normal thyratron. A thyratron fuse is a thyratron used as a fuse in a bomb or artillery shell. In this case, the "fuse" is the thing that triggers the bomb to blow up. A "thyratron fuse" probably is built to be very small and rugged, but since it only triggers the one time, a long operating life probably isn't high on their list of required characteristics. -Chuck |
#5
Posted to rec.audio.tubes
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8102 and 5662 info sought
Chuck Harris wrote:
A thyratron fuse is a thyratron used as a fuse in a bomb or artillery shell. In this case, the "fuse" is the thing that triggers the bomb to blow up. A "thyratron fuse" probably is built to be very small and rugged, but since it only triggers the one time, a long operating life probably isn't high on their list of required characteristics. -Chuck Wonder what the advantage is over a regular fuse, the ability to be reset? I'll have to wire one up and see if it behaves like a normal thyratron and oscillates. My latest project is a tube synth based on Eric Barbours designs. Adam |
#6
Posted to rec.audio.tubes
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8102 and 5662 info sought
Adam Stouffer wrote:
Chuck Harris wrote: A thyratron fuse is a thyratron used as a fuse in a bomb or artillery shell. In this case, the "fuse" is the thing that triggers the bomb to blow up. A "thyratron fuse" probably is built to be very small and rugged, but since it only triggers the one time, a long operating life probably isn't high on their list of required characteristics. -Chuck Wonder what the advantage is over a regular fuse, the ability to be reset? I'll have to wire one up and see if it behaves like a normal thyratron and oscillates. My latest project is a tube synth based on Eric Barbours designs. Adam You don't appear to understand what I said. I'm sorry, I'll try again. When you light a firecracker, you light the *fuse*. A thyratron *fuse* does the same thing for a bomb, or artillery shell as the fuse does for a firecracker... it lights the fuse. The principal advantage of a thyratron in this application is it is easily triggered with a small electrical signal, and once it is triggered, it will dump all of the charge from the firing capacitor into the blasting cap, or other device, that makes the bomb go boom. -Chuck |
#7
Posted to rec.audio.tubes
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8102 and 5662 info sought
Chuck Harris wrote:
Adam Stouffer wrote: Chuck Harris wrote: A thyratron fuse is a thyratron used as a fuse in a bomb or artillery shell. In this case, the "fuse" is the thing that triggers the bomb to blow up. A "thyratron fuse" probably is built to be very small and rugged, but since it only triggers the one time, a long operating life probably isn't high on their list of required characteristics. You don't appear to understand what I said. I'm sorry, I'll try again. When you light a firecracker, you light the *fuse*. A thyratron *fuse* does the same thing for a bomb, or artillery shell as the fuse does for a firecracker... it lights the fuse. The word "fuse" has two different meanings. One meaning is a name for that device that burns out and goes open when you pass too much current thru it. Another meaning is that rope like thing you light with a match to slowly burn to the explosive to then make it blow up. This gives you time to run away.... One of the above posters is getting these mixed up... |
#8
Posted to rec.audio.tubes
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8102 and 5662 info sought
robert casey wrote:
Chuck Harris wrote: Adam Stouffer wrote: Chuck Harris wrote: A thyratron fuse is a thyratron used as a fuse in a bomb or artillery shell. In this case, the "fuse" is the thing that triggers the bomb to blow up. A "thyratron fuse" probably is built to be very small and rugged, but since it only triggers the one time, a long operating life probably isn't high on their list of required characteristics. You don't appear to understand what I said. I'm sorry, I'll try again. When you light a firecracker, you light the *fuse*. A thyratron *fuse* does the same thing for a bomb, or artillery shell as the fuse does for a firecracker... it lights the fuse. The word "fuse" has two different meanings. One meaning is a name for that device that burns out and goes open when you pass too much current thru it. Another meaning is that rope like thing you light with a match to slowly burn to the explosive to then make it blow up. This gives you time to run away.... One of the above posters is getting these mixed up... Uhmmm, which one might that be? -Chuck |
#9
Posted to rec.audio.tubes
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8102 and 5662 info sought
On Jul 2, 9:51 pm, Sean wrote:
Phil Allison wrote: "Adam Stouffer" TDSL turned up no info for an 8102 and the only info I can find on the 5662 is that the Radio Amateurs Handbook calls it a "thyratron fuse". So does anyone know what an 8102 is and how is a thyratron fuse different from a normal thyratron. ** The 8102 is a noval ( 9 pin) triode / pentode with 13.5 volt heater. It's in the GE " Essential Characteristics" book. 5662 = miniature gas thyratron used as a fuse in electric blankets! Wasn't it also used mainly in the variable heat control much like a SCR is used in modern light dimmers? And through the miracle of specific-applicatin devices it just happened to have the fusible link in the bulb too? Tim. |
#10
Posted to rec.audio.tubes
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8102 and 5662 info sought
Chuck Harris wrote:
robert casey wrote: Chuck Harris wrote: Adam Stouffer wrote: Chuck Harris wrote: A thyratron fuse is a thyratron used as a fuse in a bomb or artillery shell. In this case, the "fuse" is the thing that triggers the bomb to blow up. A "thyratron fuse" probably is built to be very small and rugged, but since it only triggers the one time, a long operating life probably isn't high on their list of required characteristics. You don't appear to understand what I said. I'm sorry, I'll try again. When you light a firecracker, you light the *fuse*. A thyratron *fuse* does the same thing for a bomb, or artillery shell as the fuse does for a firecracker... it lights the fuse. The word "fuse" has two different meanings. One meaning is a name for that device that burns out and goes open when you pass too much current thru it. Another meaning is that rope like thing you light with a match to slowly burn to the explosive to then make it blow up. This gives you time to run away.... One of the above posters is getting these mixed up... Uhmmm, which one might that be? -Chuck There are also "proximity fuses",that were/are used in warheads and missiles,etc. Apparently the early versions of these were (tubed!) radar-like devices.. IIRC,there was a discussion about some of them not along ago on Usenet,but I don't remember which newsgroup it was in...(Google should find it though.) |
#11
Posted to rec.audio.tubes
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8102 and 5662 info sought
PhattyMo wrote:
up. This gives you time to run away.... One of the above posters is getting these mixed up... Uhmmm, which one might that be? -Chuck There are also "proximity fuses",that were/are used in warheads and missiles,etc. Apparently the early versions of these were (tubed!) radar-like devices.. IIRC,there was a discussion about some of them not along ago on Usenet,but I don't remember which newsgroup it was in...(Google should find it though.) Back in the day(circa WWII), the US fielded vacuum tube based proximity fuses that were used in bombs, and artillery shells. The fuse used a CW Doppler radar effect to sense the presence of a large metal object (hopefully an enemy airplane), and detonate. It was a vastly better more effective than the previous contact detonating, and timer detonating shells. The proximity fuse had a couple of tubes that formed the Doppler detector, and a thyratron *fuse* that dumped a large capacitor into a detonator cap that detonated the explosives. Hence the name "fuse". The 5662 is a very tiny 7 pin glass tube thyratron. I can buy them over the internet for less than $5, but I haven't had any luck finding a data sheet. It appears to be capable of withstanding a 150A pulse a single time... a perfect characteristic for a bomb fuse. -Chuck |
#12
Posted to rec.audio.tubes
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8102 and 5662 info sought
Chuck Harris wrote:
The 5662 is a very tiny 7 pin glass tube thyratron. I can buy them over the internet for less than $5, but I haven't had any luck finding a data sheet. It appears to be capable of withstanding a 150A pulse a single time... a perfect characteristic for a bomb fuse. -Chuck I picked up two on ebay for $3 each along with a rare 932 photomultiplier tube. But anyhow the 5662 is a really odd tube. Theres a bare cathode next to a plate with a small hole near the bottom. On the other side of the hole is a single wire electrode. I'll post a pic of it soon. Adam |
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