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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: RE: LSES doesn't belong on this thread....... posted by richardson.sean@gmail.com on March 6, 2012 at 08:11:13:
150uf per channel is a lot of storage for say a 50w PP amp. It's a HUGE amount for a 2w SE amp. Look at the classic HiFi designs of the 1950s and 60s. You had sometimes only 20-30uf and a 2hy choke before the finals. And those amps performed quite well. The Citation 2 was the first amp to really pile on capacitance with around 200uf and it was a late comer in the tube glory days.We use large caps today simply because we can. A 500uf 450v capacitor was simply not available in those days. Today it's a common commodity part thanks to switch mode power supplies.
Remember folks it comes down to watt-seconds or joules of energy storage. A 200w SS amp needs around 40,000uf at 75 volts per rail. A transmitter tube based 200w amp at 1200 volts B+ needs far, far, less capacitance to achieve the same ripple factor.
Edits: 03/06/12
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Follow Ups
- LSES is 150uf per channel??? - gusser 13:06:29 03/06/12 (4)
- RE: LSES is 150uf per channel??? - richardson.sean@gmail.com 10:00:00 03/07/12 (2)
- If you want to learn.... - gusser 11:30:30 03/07/12 (1)
- RE: If you want to learn.... - richardson.sean@gmail.com 07:23:04 03/08/12 (0)
- RE: LSES is 150uf per channel??? - PakProtector 03:06:49 03/07/12 (0)
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