Mike, Try to use just 65 % of the turns of your primary winding and i bet the optimum will be on 9 kHz! :-) 73, Stefan Am 31.05.2010 05:03, schrieb Mike.WE0H: Well worth testing. There might be some
Dear Mike, LF Group, The flyback/line output transformers with potted windings in most relatively recent CRT TVs / monitors have the EHT rectifiers and various other components encapsulated along wit
Hello Mike, just one thing to keep in mind: a transformer with a voltage ratio of about 430 (300/0.7) will also act as a 1 to 185000 impedance transformer. As a result the slightest resistive load at
mike think Fly Back if I can locate one I have will have to do some playing around actually I believe an old CRT Pc moniter has one as well Bob _______________________________________________________
Hi Mike, LFers, I grabbed one of my many MOTs and ran some tests with the primary connected to a signal generator's 600 ohm output and the secondary connected to a VTVM. The measured L of the primary
Hello Riese, LFers, Aahh....the good old neon sign transformer, or NST as we Tesla coilers refer to them. It brings back a lot of fond memories including a visit with Mike Tucknot of Swindon, U.K. An
Mike What way have you it configured regarding antenna. mal/g3kev connected to a signal generator's 600 ohm primary is .047 H and the secondary L is measured at 1 kHz. steps as below: rule out using
Hi Mike, Just count the number of turns you used and multiply the number by 0.65. This is the new number of turns. Or, remove 35% of the turns ;-) 73, Stefan Am 31.05.2010 17:02, schrieb Mike.WE0H: H
I tried a microwave oven power transformer the other night but it wasn't as efficient as this TV transformer. I couldn't get even 100v out of it with the same input signal that gives me 300v out of t
Found my Zenith black & white TV chassis tonight. Got a flyback transformer that looks like Litz wound with bees wax for potting compound. No diodes, lots of room for the primary winding that I need
Can someone explain what the TV transformer is and a picture so I can find one here? I was doing testing last night with a DDS VFO into a microwave oven power transformer and got the voltage up enoug
Well worth testing. There might be some other transformers that work and we won't know which ones until someone tests them. Looks like 4kc is the peak of efficiency on that transformer you tested. I
Hi Stefan, How many turns should I wind for a primary side? 8 to 10 maybe? I was using a 48.4 milli-henry primary winding with the secondary at 4.2 henry. There are many primary windings on this tran
I need to look around for an old tube TV for the same thing Just wondered how well a neon sign transformer would work. back in the days I used a pair of HV transformers back to back as a modulation t
A torroidal transformer works on VLF. I had one (220 to 15 V) in use after my audio transformer was blown. But the TV transformer brings the higher voltage of course. Horst DO1KHS/DI2AN --Ursprünglic
Hi Mal, Right now the transformer is connected to a 20' wire run inside the house. No matching for now. I will have to try a hundred foot wire outside or ground probes. I have many trees 70' tall in
