another vintage HV device finding challenge: LARGE plasma balls!
Ok, my previous post concerned the outlandish prices for some neat
looking HV devices originally from the late 90's: Luminglas discs. I was successful finding several, and at good prices comparable to what I would have paid in 2000 for some nice used ones. However..... I have been on a new quest to try and find a large plasma ball. True, they are all over the Internet, but the most common sizes seem to be 8" diameter or less and I am looking for 12" diameter or more! However, the price seems to increase maybe as much as 20 fold going from 8 to 12 inch size! I see some on eBay in 12" size for just under $200, but I'm hoping to do better. Problem with the used ones I see is that the sellers don't specify globe size and 99% most definitely are 8" or less diameter. Suggestions would be welcome. One thing I tried googling for was some sort of a history on plasma globes with maybe larger ones from the past mentioned. Other than Spencer's 12" Megavolt, that's all I could come up with (and, incidentally, the person wants more for the Megavolt than a new 12" one!). Thank you. |
another vintage HV device finding challenge: LARGE plasma balls!
On 11/24/19 4:42 PM, Branden wrote:
Ok, my previous post concerned the outlandish prices for some neat looking HV devices originally from the late 90's: Luminglas discs.Â* I was successful finding several, and at good prices comparable to what I would have paid in 2000 for some nice used ones.Â* However..... I have been on a new quest to try and find a large plasma ball.Â* True, they are all over the Internet, but the most common sizes seem to be 8" diameter or less and I am looking for 12" diameter or more!Â* However, the price seems to increase maybe as much as 20 fold going from 8 to 12 inch size!Â* I see some on eBay in 12" size for just under $200, but I'm hoping to do better.Â* Problem with the used ones I see is that the sellers don't specify globe size and 99% most definitely are 8" or less diameter. Suggestions would be welcome.Â* One thing I tried googling for was some sort of a history on plasma globes with maybe larger ones from the past mentioned.Â* Other than Spencer's 12" Megavolt, that's all I could come up with (and, incidentally, the person wants more for the Megavolt than a new 12" one!). Thank you. The very large type you see in science museums and such are probably custom jobs I don't think there's enough demand for globes of larger size to make an industry of selling anything but one-offs. |
another vintage HV device finding challenge: LARGE plasma balls!
On 11/24/19 5:31 PM, bitrex wrote:
On 11/24/19 4:42 PM, Branden wrote: Ok, my previous post concerned the outlandish prices for some neat looking HV devices originally from the late 90's: Luminglas discs.Â* I was successful finding several, and at good prices comparable to what I would have paid in 2000 for some nice used ones.Â* However..... I have been on a new quest to try and find a large plasma ball.Â* True, they are all over the Internet, but the most common sizes seem to be 8" diameter or less and I am looking for 12" diameter or more! However, the price seems to increase maybe as much as 20 fold going from 8 to 12 inch size!Â* I see some on eBay in 12" size for just under $200, but I'm hoping to do better.Â* Problem with the used ones I see is that the sellers don't specify globe size and 99% most definitely are 8" or less diameter. Suggestions would be welcome.Â* One thing I tried googling for was some sort of a history on plasma globes with maybe larger ones from the past mentioned.Â* Other than Spencer's 12" Megavolt, that's all I could come up with (and, incidentally, the person wants more for the Megavolt than a new 12" one!). Thank you. The very large type you see in science museums and such are probably custom jobs I don't think there's enough demand for globes of larger size to make an industry of selling anything but one-offs. I'd perhaps talk to someone on the facility of a place like which has one, might be able to at least find parts or who made theirs. I'd be prepared to pay a few G at least for a two-foot diameter one or such.... |
another vintage HV device finding challenge: LARGE plasma balls!
bitrex wrote in
: On 11/24/19 4:42 PM, Branden wrote: Ok, my previous post concerned the outlandish prices for some neat looking HV devices originally from the late 90's: Luminglas discs.Â* I was successful finding several, and at good prices comparable to what I would have paid in 2000 for some nice used ones.Â* However..... I have been on a new quest to try and find a large plasma ball.Â* True, they are all over the Internet, but the most common sizes seem to be 8" diameter or less and I am looking for 12" diameter or more!Â* However, the price seems to increase maybe as much as 20 fold going from 8 to 12 inch size!Â* I see some on eBay in 12" size for just under $200, but I'm hoping to do better.Â* Problem with the used ones I see is that the sellers don't specify globe size and 99% most definitely are 8" or less diameter. Suggestions would be welcome.Â* One thing I tried googling for was some sort of a history on plasma globes with maybe larger ones from the past mentioned.Â* Other than Spencer's 12" Megavolt, that's all I could come up with (and, incidentally, the person wants more for the Megavolt than a new 12" one!). Thank you. The very large type you see in science museums and such are probably custom jobs I don't think there's enough demand for globes of larger size to make an industry of selling anything but one-offs. https://www.metalsphere.com/product/...m-half-sphere/ |
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