08-17-2013, 09:24 PM
Hi, and welcome - we're glad you've joined us! ![Icon_biggrin Icon_biggrin](https://philcoradio.com/phorum/images/smilies/icon_biggrin.gif)
7C5 is listed as a substitute for a 7B5. The 7B5 is more like a 6K6 or 41 in characteristics, while a 7C5 is more like a 6V6. Not exactly the same - grid biasing is different between the two. I think I would go back to the 7B5 if I were you, but no real harm will be done in using a 7C5.
There is no point in buying an entire set of tubes if you don't need them - this just lowers the availability of the other tubes for people who do need them. They aren't making these anymore, folks...so just buy what you need. That's my opinion.
![Icon_biggrin Icon_biggrin](https://philcoradio.com/phorum/images/smilies/icon_biggrin.gif)
7C5 is listed as a substitute for a 7B5. The 7B5 is more like a 6K6 or 41 in characteristics, while a 7C5 is more like a 6V6. Not exactly the same - grid biasing is different between the two. I think I would go back to the 7B5 if I were you, but no real harm will be done in using a 7C5.
There is no point in buying an entire set of tubes if you don't need them - this just lowers the availability of the other tubes for people who do need them. They aren't making these anymore, folks...so just buy what you need. That's my opinion.
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Ron Ramirez
Ferdinand IN