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previous: Gus Re: Ampeg B-25B output impedence -- 3/23/1999 8:26 AM

Ampeg B-25 output

4/3/1999 5:03 PM
alex	Ampeg B-25 output I was reading your message, and changing from a 7027 to a EL-34 is a bad idea. A much better idea would to change to a 7581. These tubes are available and are Phillips, USA. Most of the El-34 tubes out there are very low quality. If you want to use low quality tubes a 6550 would be your best bet. Alllways use N.O.S. American tubes whenever possible. 7581's are not that expensive and will outlast 20 or 30 EL-34's in a B-25.

4/3/1999 5:03 PM

alex

Ampeg B-25 output

I was reading your message, and changing from a 7027 to a EL-34 is a bad idea. A much better idea would to change to a 7581. These tubes are available and are Phillips, USA. Most of the El-34
tubes out there are very low quality. If you want to use low quality tubes a 6550 would be your best bet. Alllways use N.O.S. American tubes whenever possible. 7581's are not that expensive and will outlast 20 or 30 EL-34's in a B-25.