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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: Re: 5R4GY Types posted by Jimmy on November 26, 2005 at 06:22:55:
Every component in a power supply effects sonics. Power supply design is critical. Large value capacitors are not the best in some locations. Use a PS simulator to see the peak to average currents in transformers, chokes, rectifiers, etc. I design power supplies differently for preamps, PP amps & SET amps. The SET power amp is most critical & PP more forgiving with regard to energy storage.A Chatham 'potato masher' 5R4 was not a good sounding tube. It was 1/2 way in-between a common 5U4 vs the best 5R4.
Try the Sylvania 5R4GYB as mentioned above. Radio Daze at (585) 742-2020 sells these for $10.50 each. Don't like them, I will buy them from you as I only have four spares.
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Follow Ups
- Ok..... - Jimmy 06:53:23 11/26/05 (3)
- Is it Sylvania 5R4GB or 5R4GYB? The web site says GB for $10.50 and GYB for $11 (nt) - KIS 07:14:40 11/26/05 (1)
- Re: Is it Sylvania 5R4GB or 5R4GYB? The web site says GB for $10.50 and GYB for $11 (nt) - Jimmy 08:31:40 11/26/05 (0)
- I'll get some now. Thanks Jim. And no ... - KIS 06:57:58 11/26/05 (0)
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