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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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anyone can help? i have built a preamp using tube 5687 with output tansformer.the impedance is 10k/600R. 4:1 ratio.the sound is very lack of bass.i operate the tube with 140v and 16ma on plate,about 4v on grid.should i turn the secondary connection? now i'm connect tap on secondary which is on primary tap to b+.secondary to out put,primary to anode,secondary to ground,the bass is like out of phase,very lack.i also have a little bit hum in this preamp.
thanks before
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Topic - preamp output tansformer problem - san2 07:52:12 09/28/06 (6)
- Re: preamp output tansformer problem - Tre' 20:48:58 09/28/06 (2)
- Re: transformer rated inductance - san2 22:15:14 09/28/06 (1)
- Re: transformer rated inductance - dave slagle 06:55:50 09/29/06 (0)
- Is it parafeed or are you running current through the primary to the anode?nt - grhughes 08:06:34 09/28/06 (2)
- Re: Is it parafeed or are you running current through the primary to the anode?nt - san2 19:42:33 09/28/06 (1)
- If transformer is not expressly designed to take that much primary DC current, - sser2 22:02:31 09/28/06 (0)
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