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Bottlehead Forum Welcome! Need support, you got it. Or share you ideas and experiences. |
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Bottlehead Forum Welcome! Need support, you got it. Or share you ideas and experiences. |
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In Reply to: Upgrading Paramours posted by cadown on September 18, 2001 at 05:55:55:
Iron is the biggest improvement, for sure.The driver tube choice is limited to those that draw no more than 300mA of filament current. That lets out a lot of good stuff, but there are some single triodes of interest. (This was not practical until the C4S upgrade came out.) Most are either octal or 7-pin, so they will need new sockets and perhaps a different hole size. Look for a plate resistance of 5k to 10k, and a gain (mu) of 20 or more. If you have a high-output preamp, a 76 (mu=13) might work out. Otherwise, the reference would be a 6J5 type - boring but hard to beat.
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Follow Ups
- Re: Upgrading Paramours - Paul Joppa 19:08:31 09/18/01 (7)
- Paramours w/76 - DRCope 09:29:24 09/19/01 (5)
- Re: Paramours w/76 - Paul Joppa 18:57:05 09/19/01 (4)
- Re: Paramours w/76 - sgerin 05:51:20 10/01/01 (1)
- Re: Paramours w/76 - DRCope 08:53:48 10/12/01 (0)
- Cathode bias w/76 - try a 9v battery! - JeffreyJ 09:43:14 09/20/01 (0)
- Thanks, Paul! - DRCope 05:36:24 09/20/01 (0)
- What's 'boring' about a 6J5? (nt) - Anand 19:12:11 09/18/01 (0)
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