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Do It Yourself (DIY) paradise for tube and SET project builders.

RE: No this is not an comersial product

"even though not carbon composition I think they are suitable for this application."

No, they're not. Only carbon composition is suitable for use as a grid stopper. All others risk creating oscillation that can be difficult to identify and troubleshoot.

No reason to have a 25K input Z. Remove the network and install a 100K pot to ground at the grid. Also, if you're interested in a pentode front end, the EF86 is one of the best. Internally shielded, stable, low distortion, minimal microphonics, etc. I won't use anything else.


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Buy Chinese. Bury freedom.



Edits: 04/04/17

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