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Nomad and Shockwave,
Thanks for your responses. I am just looking at options for this amp. Since I plan to replace most every electrical component in it (including wires) I wasn't sure if there weren't proven improvements that can be done to make it last another 40+ years.

The little ferrite beads are still on the driver tube plate cap leads (not sure if there ever were any on the finals?) but I had planned to add some 47ohm 2watts with a 4 turn coil for each plate cap lead (and leave the ferrites in place-suspenders and a belt thing).

My thinking is most every manufacturer of this era left out a couple "5 cent" parts here and there to improve profits or that would have made a major improvement in the behavior of this model. Since tube radios were the norm when this was built, can improvements be made? Can I make the amp more friendly to transistor based equipment and correct some known oddities about this model.

I'm not concerned about adding the left out "5 cent" parts. As little as I have in this amp, it deserves a serious freshening up and a few circuit changes or parts value changes along the way is not a problem or concern.

73's
David

<blockquote data-quote="Dmans" data-source="post: 658761" data-attributes="member: 49046">Nomad and Shockwave,Thanks for your responses. I am just looking at options for this amp. Since I plan to replace most every electrical component in it (including wires) I wasn&#039;t sure if there weren&#039;t proven improvements that can be done to make it last another 40+ years.The little ferrite beads are still on the driver tube plate cap leads (not sure if there ever were any on the finals?) but I had planned to add some 47ohm 2watts with a 4 turn coil for each plate cap lead (and leave the ferrites in place-suspenders and a belt thing).My thinking is most every manufacturer of this era left out a couple &quot;5 cent&quot; parts here and there to improve profits or that would have made a major improvement in the behavior of this model. Since tube radios were the norm when this was built, can improvements be made? Can I make the amp more friendly to transistor based equipment and correct some known oddities about this model.I&#039;m not concerned about adding the left out &quot;5 cent&quot; parts. As little as I have in this amp, it deserves a serious freshening up and a few circuit changes or parts value changes along the way is not a problem or concern.73&#039;sDavid</blockquote>

[QUOTE="Dmans, post: 658761, member: 49046"] Nomad and Shockwave, Thanks for your responses. I am just looking at options for this amp. Since I plan to replace most every electrical component in it (including wires) I wasn't sure if there weren't proven improvements that can be done to make it last another 40+ years. The little ferrite beads are still on the driver tube plate cap leads (not sure if there ever were any on the finals?) but I had planned to add some 47ohm 2watts with a 4 turn coil for each plate cap lead (and leave the ferrites in place-suspenders and a belt thing). My thinking is most every manufacturer of this era left out a couple "5 cent" parts here and there to improve profits or that would have made a major improvement in the behavior of this model. Since tube radios were the norm when this was built, can improvements be made? Can I make the amp more friendly to transistor based equipment and correct some known oddities about this model. I'm not concerned about adding the left out "5 cent" parts. As little as I have in this amp, it deserves a serious freshening up and a few circuit changes or parts value changes along the way is not a problem or concern. 73's David [/QUOTE]

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