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Well last week I did a job for a friend that brought in some extra money so I bought a set of new Svetlana 572B tubes fromK5SVC.

He has an e-bay store and I got 3 tubes for $165. They came in this morning and are definitely a plug and play replacement for the 811A's. So much for everything you read on the internet. I no longer care about the warranty after my tube fiasco so I figured if the 572B's are a lot more durable and I have some windfall funds why not get them.

Plugged them in and they tune up in almost the same positions as the 811A's and it feels like less heat coming from the vent on the side of the amp.
They tune up a bit better on 10m than the cheapo Chinese 811's I bought.

Anyway, I have a 1 year warranty on the tubes and reliability and durability is what I want so I just dropped the cash. So hopefully my tube buying days are all over

<blockquote data-quote="W1MSG" data-source="post: 245728" data-attributes="member: 13274">Well last week I did a job for a friend that brought in some extra money so I bought a set of new Svetlana 572B tubes fromK5SVC.He has an e-bay store and I got 3 tubes for $165. They came in this morning and are definitely a plug and play replacement for the 811A&#039;s. So much for everything you read on the internet. I no longer care about the warranty after my tube fiasco so I figured if the 572B&#039;s are a lot more durable and I have some windfall funds why not get them.Plugged them in and they tune up in almost the same positions as the 811A&#039;s and it feels like less heat coming from the vent on the side of the amp. They tune up a bit better on 10m than the cheapo Chinese 811&#039;s I bought.Anyway, I have a 1 year warranty on the tubes and reliability and durability is what I want so I just dropped the cash. So hopefully my tube buying days are all over <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f609.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":wink:" title="Wink&nbsp; &nbsp; :wink:"&nbsp; data-smilie="2"data-shortname=":wink:" /></blockquote>

[QUOTE="W1MSG, post: 245728, member: 13274"] Well last week I did a job for a friend that brought in some extra money so I bought a set of new Svetlana 572B tubes fromK5SVC. He has an e-bay store and I got 3 tubes for $165. They came in this morning and are definitely a plug and play replacement for the 811A's. So much for everything you read on the internet. I no longer care about the warranty after my tube fiasco so I figured if the 572B's are a lot more durable and I have some windfall funds why not get them. Plugged them in and they tune up in almost the same positions as the 811A's and it feels like less heat coming from the vent on the side of the amp. They tune up a bit better on 10m than the cheapo Chinese 811's I bought. Anyway, I have a 1 year warranty on the tubes and reliability and durability is what I want so I just dropped the cash. So hopefully my tube buying days are all over :wink: [/QUOTE]

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