Bassman 100 Head

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admin
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Bassman 100 Head

Post by admin »

My amp tech has me on the hunt for a couple of capacitors for my Bassman 100 Head:
5 (4.7) mfd 50 V and
80 mfd 100 V

These are not easy to find. What can I use as substitutes for these values?
Life, as with music, often requires one to let go of the melody and listen to the rhythm

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soundmasterg
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Post by soundmasterg »

Peter, try www.tubesandmore.com. Under their generic electrolytic cap section, they list the 4.7uf cap, although its rated for 160v so even better than the 50v, and its $1.75. For the 80uf, the closest that you'll come is a 100uf at 160v, and those are $2.39. Its ok to go up in voltage rating, and in cap value, within reason. You wouldn't want to use a 250uf in place of the 80uf, but a 100uf is within 20%, which is as close as the tolerances are anyway. If that 80uf is meant for a bias supply, then you NEVER want to exceed 100uf in that place or you have too much of a delay before your bias circuit gets its juice.
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Post by admin »

Thanks Greg. I appreciate this guidance.
Life, as with music, often requires one to let go of the melody and listen to the rhythm

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