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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: does anyone have a simple "power-on soft start" schematics? posted by jarthel on August 8, 2006 at 06:34:15:
Hi ,
Take HT from main smoothing cap , make C2 a 20uF 400V Solen , ditto C1 , Rset 330k . Should be ok for a pre amp , for a power amp I find it better to use a larger C2 , say 47uf as with higher currents Rset needs to be a lower value but 330k is a good place to start . Hope this helps :)
cheers
...FB
...FB
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Follow Ups
- Yes - fatbottle 08:44:58 08/08/06 (7)
- "Take HT from main smoothing cap" (what's HT?) thanks again (nt) - jarthel 01:31:58 08/09/06 (4)
- You're gotten the substance of the definition, but, specifically, HT is short for High Tension... - jeffreybehr 19:42:11 08/10/06 (0)
- It is Britspeak for B+ (nt) - richardl 16:03:28 08/10/06 (1)
- thank you for that (nt) - jarthel 16:19:24 08/10/06 (0)
- If you don't know what HT is then don't build the circuit !!!!!!!!!!!!!!! (nt) - fatbottle 02:10:26 08/09/06 (0)
- substitute for a ztx458? not available locally. thanks (nt) - jarthel 17:00:29 08/08/06 (1)
- Re: substitute for a ztx458? not available locally. thanks (nt) - fatbottle 01:18:23 08/09/06 (0)
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