Gibson Titan III amp - ca. 1965 capacitors

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Gibson Titan III amp - ca. 1965 capacitors

Postby freddo30 on Wed Jun 08, 2016 12:22 pm

There is a pair of capacitors 16mfd 50 V and 30mfd 50 V inside the trapezoidal speaker cabinet of this amp which I suspect of cutting in and out periodically. They power 3 speakers - 2 @ 8ohm and a single 16 ohm by means of a crossover circuit. I'm having trouble finding direct replacement for them - any suggestions would be most appreciated ! freddo30
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Re: Gibson Titan III amp - ca. 1965 capacitors

Postby jaywalker on Thu Jun 09, 2016 1:20 pm

i found illinois elytics in 22/50v and 33/50v. the 22 is outside of 20% of 16uF (being at 27%). At tubes and more. Look at parts express or mouser.
voltage rating recommended to be equal to or greater. capacitance is recommended to be within 20%
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Re: Gibson Titan III amp - ca. 1965 capacitors

Postby stratele52 on Thu Jun 09, 2016 8:27 pm

With 1minute search, I found;

F & T ( very good brand ) have a 33 MFD 160 volts
And two 33 MFD in serie give you a 16.5 MFD value at 320 volts

https://www.tubesandmore.com/products/C-ET33-160-FT
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Re: Gibson Titan III amp - ca. 1965 capacitors

Postby Torren61 on Fri Jun 10, 2016 3:25 am

One minute? Is that the best you can do? :P
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Re: Gibson Titan III amp - ca. 1965 capacitors

Postby Unit_1 on Fri Jun 10, 2016 5:30 am

Torren61 wrote:One minute? Is that the best you can do? :P


I was able to do it in 7.9 nanoseconds, but only by using my hypnotoad interface

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Re: Gibson Titan III amp - ca. 1965 capacitors

Postby stratele52 on Fri Jun 10, 2016 8:15 am

Torren61 wrote:One minute? Is that the best you can do? :P


Yes it is the best time , sorry if I can't find the exact values.

F & T are better than Illinois I don't use in good amp.
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Re: Gibson Titan III amp - ca. 1965 capacitors

Postby freddo30 on Fri Jun 10, 2016 12:51 pm

THANK YOU for the suggestions ; much appreciation . :jam:
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Re: Gibson Titan III amp - ca. 1965 capacitors

Postby pdf64 on Fri Jun 10, 2016 10:22 pm

For such an application, the caps will need to be non-polarised.
Polarised ecaps can be made non-polarised by connecting 2 in series, positive ends connected together.
The individual cap values in this arrangement would need to be twice the required value.
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Re: Gibson Titan III amp - ca. 1965 capacitors

Postby mozz on Sat Jun 11, 2016 1:29 am

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Re: Gibson Titan III amp - ca. 1965 capacitors

Postby stratele52 on Sat Jun 11, 2016 8:20 am

mozz wrote:Cheap ones and expensive ones.
http://www.parts-express.com/cat/crosso ... citors/292


I did not see it was for a crossover,( my bad ) your answer is the best one.
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