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| To: | [email protected] |
|---|---|
| Subject: | LF: Re: HV-Transformer experiment on 9kc |
| From: | Mike-WE0H <[email protected]> |
| Date: | Sat, 12 Jun 2010 02:51:26 -0500 |
| In-reply-to: | <001701cb0a02$6b689720$0401a8c0@xphd97xgq27nyf> |
| References: | <002401cb096b$7d950560$0401a8c0@xphd97xgq27nyf> <[email protected]> <[email protected]> <003a01cb097f$640755d0$0401a8c0@xphd97xgq27nyf> <[email protected]> <D37600A2E38841DD9394FBD7B49FDC0C@D2FCLG81> <E565DEB991F74BB9B72215AA3798B98E@df2py> <001701cb0a02$6b689720$0401a8c0@xphd97xgq27nyf> |
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My TV transformer works very well from about 4kc on up. I get 300v p-p out of it with just .7v p-p input from my DDS VFO. I tested some mains transformers and the loss was too high at even 4kc. They did step the signal up some but the loss was just too much to mess around with them when those old tube TV transformers work so efficient. Mike WE0H mal h wrote: A TV line output transformer worked at 15 kcs NOT 50/60 Hz. I use LOPT cores which are 3C material on 137 and 500 and are perfect for the job.mal/g3kev |
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