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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: 2a3 change in paramour question posted by berlin on April 14, 2001 at 09:13:36:
The Paramour does not exceed the rated maximum voltage and dissipation for 2A3 tubes. All 2A3's should work acceptably and reliably, without modifying the circuit.The Paraglow and Afterglow were found to sound a bit better with more current, when using the KR and AVVT tubes; those currents are beyond the specifications for classic 2A3s. Perhaps that is the source of your memory?
The exception to watch out for is if you have unusually high power line voltage. In that case, all the voltages will be too high, including the filament voltage as well as the B+. The Paramour transformer has a 120v primary, and tube manuals typically specify a maximum deviation of 10%, so it ought to be workable from 110v to 130v. For valuable antique tubes, I would be careful with this, and consider a variac or other voltage control if needed to keep the voltage at or below 120v.
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Follow Ups
- Re: 2a3 change in paramour question - Paul Joppa 13:47:02 04/14/01 (4)
- Re: 2a3 change in paramour question + the 83 - berlin 20:19:24 04/14/01 (3)
- Re: 2a3 change in paramour question + the 83 - Paul Joppa 01:33:17 04/15/01 (0)
- Re: 2a3 change in paramour question + the 83 - VoltSecond 00:38:15 04/15/01 (1)
- thanks guys! <nt> - berlin 10:03:53 04/15/01 (0)
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