Search found 76 matches

by Joshua Guertler
Wed Feb 12, 2020 11:03 pm
Forum: Items wanted
Topic: Large Ferrite Core or Pulse Transformer Core
Replies: 2
Views: 774

Re: Large Ferrite Core or Pulse Transformer Core

Greetings, Preferably, I would be interested in getting a metglas transformer. However, any amorphous metal would do. Sorry for the confusion. All I need is a general metglas core, the frequency and pulse widths of the pulsed power is fairly low. Likewise, the size isn't terribly important so long a...
by Joshua Guertler
Wed Feb 12, 2020 5:05 am
Forum: Items wanted
Topic: Large Ferrite Core or Pulse Transformer Core
Replies: 2
Views: 774

Large Ferrite Core or Pulse Transformer Core

Greetings, I've been working on a power supply that requires a pretty hefty ferrite or pulse core transformer. The core (which ever type it may be) must be 6 inches by 6 inches and weigh around 5 pounds. The pulse transformer would also need to be metglas or some other type of amorphous metal core. ...
by Joshua Guertler
Thu Feb 06, 2020 4:32 pm
Forum: Items wanted
Topic: Hydrogen Gas Detector
Replies: 4
Views: 710

Re: Hydrogen Gas Detector

Greetings,

I'm planning to incorporate it into a science fair project. These guys are pretty hydrogen- and radiation-phobic, so I need to do everything in my power to prove to them that the concentration of it at the exhaust of the roughing pump isn't high enough to cause an explosion.
by Joshua Guertler
Thu Feb 06, 2020 3:06 pm
Forum: Items wanted
Topic: Hydrogen Gas Detector
Replies: 4
Views: 710

Hydrogen Gas Detector

Greetings, I was curious if anyone might have a hydrogen gas detector that they'd be willing to sell or allow me to rent. Unfortunately, most eBay and Amazon offers for hydrogen go for $300, which is far outside of my price range. It doesn't need to be fancy, just something that'll say if there's a ...
by Joshua Guertler
Mon Jan 20, 2020 7:05 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Help Finding a Transformer Core Part
Replies: 5
Views: 796

Re: Help Finding a Transformer Core Part

Greetings,

Thank you for getting back to be on the matter. It's truly an unfortunate incident, however I'm doing my best to make it right for the buyer.

The metal is about 0.014" thick, 1 5/16" wide, and 2 15/16" long. Thank you.

Sincerely,
Joshua Guertler
by Joshua Guertler
Sun Jan 19, 2020 8:17 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Help Finding a Transformer Core Part
Replies: 5
Views: 796

Help Finding a Transformer Core Part

Greetings, A few minutes ago I received the dreaded email from someone who bought my old x-ray transformer saying that he received it in shambles. By the looks of it, USPS gave it the old beat down, so much do that the actual box itself broke open during shipping. Fortunately, the core itself is pre...
by Joshua Guertler
Mon Jan 13, 2020 10:26 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Neon sign transformer power: a new look
Replies: 25
Views: 12749

Re: Neon sign transformer power: a new look

Greetings,

I recently got a 9 kV 30 mA NST with an internal resistance of 9.07k Ohms (not running). If I use a similar set up, what voltage output should I be expected, assuming that the current is roughly 20 mA? Thank you.

Sincerely,
Joshua Guertler
by Joshua Guertler
Fri Jan 10, 2020 6:40 pm
Forum: Items wanted
Topic: 0-200 V, 200 V Pulsed Power Supply Units
Replies: 2
Views: 685

0-200 V, 200 V Pulsed Power Supply Units

Greetings, I've been looking for a couple of power supplies to bias and power my thyratron for my fusor. Unfortunately, the thyratron is quite old and requires some relatively obscure power supply units. I was curious if anyone would happen to have and be will to sell the following items: 0-200 VDC ...
by Joshua Guertler
Fri Jan 10, 2020 1:22 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Neon sign transformer power: a new look
Replies: 25
Views: 12749

Re: Neon sign transformer power: a new look

Greetings,

If I find an NST that is secondary midpoint grounded, would I be able to cut the ground on the secondary to make it operate in a way more desirable for this set up? Thank you.
by Joshua Guertler
Wed Jan 08, 2020 4:26 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Neon sign transformer power: a new look
Replies: 25
Views: 12749

Re: Neon sign transformer power: a new look

Greetings, Thank you very much for your advice and contribution, Mr. Feldman. Out of curiosity, would the following set up work safely? It's a slight modification to better fit my system, where the capacitor is connected to a grounded load. Thank you. https://docs.google.com/drawings/d/1UQy425Cb1DnX...