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Since I'm coming right off B- for bias. I don't need the 50k /50w resistors of the 5k resistor. Since I'm coming right off the B- right at the 1ohm 10W. But I think I'm going to upgrade that. I have a 5ohm @ 50W I think I'll put in its place. I have seen those resistors blow in past. Usually it cuts tube off, but in this instance, it might be sending 3kv to cathode. Still going to do what the L4B page recommended and put a 1K at B- in supply to ground in PS case as a safety measure. In case floating resistor in rf deck opens. 1 think bias doesn't have is a 10k resistor across bias supply if diode string would open. Wish there was more room in deck. Its tight. Think I'm going to redo caps and diode doubler circuit as well. These are new, but whose to say it doesn't have a bad cap. Best to rule out problem. Old cap bank had 5 caps per section for a total of 10 to give higher V rating.

<blockquote data-quote="Crusher" data-source="post: 444621" data-attributes="member: 3746"><p>Since I&#039;m coming right off B- for bias. I don&#039;t need the 50k /50w resistors of the 5k resistor. Since I&#039;m coming right off the B- right at the 1ohm 10W. But I think I&#039;m going to upgrade that. I have a 5ohm @ 50W I think I&#039;ll put in its place. I have seen those resistors blow in past. Usually it cuts tube off, but in this instance, it might be sending 3kv to cathode. Still going to do what the L4B page recommended and put a 1K at B- in supply to ground in PS case as a safety measure. In case floating resistor in rf deck opens.&nbsp; 1 think bias doesn&#039;t have is a 10k resistor across bias supply if diode string would open. Wish there was more room in deck. Its tight. Think I&#039;m going to redo caps and diode doubler circuit as well. These are new, but whose to say it doesn&#039;t have a bad cap. Best to rule out problem. Old cap bank had 5 caps per section for a total of 10 to give higher V rating.</p></blockquote><p></p>

[QUOTE="Crusher, post: 444621, member: 3746"] Since I'm coming right off B- for bias. I don't need the 50k /50w resistors of the 5k resistor. Since I'm coming right off the B- right at the 1ohm 10W. But I think I'm going to upgrade that. I have a 5ohm @ 50W I think I'll put in its place. I have seen those resistors blow in past. Usually it cuts tube off, but in this instance, it might be sending 3kv to cathode. Still going to do what the L4B page recommended and put a 1K at B- in supply to ground in PS case as a safety measure. In case floating resistor in rf deck opens. 1 think bias doesn't have is a 10k resistor across bias supply if diode string would open. Wish there was more room in deck. Its tight. Think I'm going to redo caps and diode doubler circuit as well. These are new, but whose to say it doesn't have a bad cap. Best to rule out problem. Old cap bank had 5 caps per section for a total of 10 to give higher V rating. [/QUOTE]

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