In Reply to: input transformer loading posted by marnold on January 25, 2004 at 07:38:44:
Have you tried it unloaded? Try a staight in from the transformer secondary to grid with no shunt resistor. Then look at the waveform. If there is still ringing then you can try a capacitor and a resistor in series from grid to ground but this is going to have to be determined by experiment with a substitution cap and resistor boxes. James
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Follow Ups
- Re: input transformer loading - j.l.guillebeau@att.net 09:07:30 01/25/04 (38)
- How can that work well? - Triode Kingdon 11:14:43 01/25/04 (16)
- Re: How can that work well? - dave slagle 17:56:47 01/25/04 (14)
- Re: How can that work well? - Triode Kingdon 20:57:20 01/25/04 (13)
- Re: How can that work well? - vry 01:08:23 01/26/04 (11)
- Re: How can that work well? - Triode Kingdon 07:37:07 01/26/04 (10)
- Re: How can that work well? - vry 08:50:12 01/26/04 (0)
- Re: How can that work well? - dave slagle 08:43:52 01/26/04 (7)
- Re: How can that work well? - Triode Kingdon 08:57:57 01/26/04 (6)
- Re: How can that work well? - mqracing 09:56:32 01/26/04 (1)
- Re: How can that work well? - Triode Kingdon 19:26:37 01/26/04 (0)
- Re: How can that work well? - vry 09:26:18 01/26/04 (3)
- Re: How can that work well? - Triode Kingdon 10:59:12 01/26/04 (1)
- so we load the secondary... - Sector-7G 13:31:55 01/26/04 (0)
- Re: How can that work well? - mqracing 10:04:39 01/26/04 (0)
- Re: How can that work well? - MQracing 08:42:18 01/26/04 (0)
- very good point TK <nt> - MQracing 21:09:18 01/25/04 (0)
- it worked well for me - j.l.guillebeau@att.net 12:21:47 01/25/04 (0)
- Will do - marnold 10:40:17 01/25/04 (18)
- Here are the pics - marnold 14:10:40 01/25/04 (17)
- Well you've eliminated that.... - j.l.guillebeau@att.net 14:40:14 01/25/04 (16)
- ? - marnold 15:50:45 01/25/04 (15)
- Choice of damping resistor.... - j.l.guillebeau@att.net 17:00:11 01/25/04 (1)
- Re: Choice of damping resistor.... - marnold 20:32:30 01/25/04 (0)
- you know... - Sector-7G 16:19:11 01/25/04 (12)
- Will try a few - marnold 19:50:49 01/25/04 (0)
- Re: you know... - Pete Fowler 18:26:33 01/25/04 (9)
- Re: you know... - mqracing 09:12:48 01/26/04 (2)
- Okay... - Pete Fowler 12:26:45 01/26/04 (1)
- Thanks Pete.... - mqracing 13:43:15 01/26/04 (0)
- A few comments. - VoltSecond 21:50:54 01/25/04 (4)
- I'm familiar with those articles... - Pete Fowler 07:43:09 01/26/04 (1)
- Cents off... - Pete Fowler 08:36:34 01/26/04 (0)
- voltsec: these two links don't work.... - MQracing 21:55:50 01/25/04 (1)
- 2nd Try. - VoltSecond 22:20:46 01/25/04 (0)
- Re: you know... - dave slagle 18:59:15 01/25/04 (0)
- Yes, some ringing is usually normal - Triode Kingdon 17:26:01 01/25/04 (0)
- Re: input transformer loading - Sector-7G 09:12:19 01/25/04 (1)
- Re: input transformer loading - marnold 10:35:43 01/25/04 (0)