Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: schoolie on February 01, 2012, 03:12:46 am
-
I'm still hung up on filter caps :laugh: Too many choices and too little space. I'd like to use these panasonic EE series radial caps ( 2x100uF@350V and 2x47uF@350V) in the first two stages. Does anybody have experience with these? They are so small compared with typical axial ecaps that they make me nervous. Could you look over these specs and let me know if there is any issue with using these in a Tweed Bassman?
Specs on 100uF model (EEU-EE2V101):
--------------------------
Temperature: -25 to 105C
Lifetime: 10000h
DF @120Hz: 0.2 (~2.65 Ohms)
Max Ripple @120hz: 640mA
DC Leakage: 2110 uA (<= 0.06CV + 10uA) Seems high?
Lead spacing: 7.5mm
Thanks! Last filter cap post, I promise!
-
Hi schoolie, There is a lot to choose from and i'm no expert but i'm sure that they will do the job. I used similar in the build i am doing now and work great with their smaller size.There has also been some discussion on the weather doubling up on caps can add to the tone :dontknow: I also found that the lower voltage caps can be a lot cheaper and doubling up gives you higher voltage rating than some of the more expensive caps.Thanks
-
Hi schoolie, There is a lot to choose from and i'm no expert but i'm sure that they will do the job. I used similar in the build i am doing now and work great with their smaller size.There has also been some discussion on the weather doubling up on caps can add to the tone :dontknow: I also found that the lower voltage caps can be a lot cheaper and doubling up gives you higher voltage rating than some of the more expensive caps.Thanks
Thanks, Tim! Good to hear that they are working well in your build. Which caps are you using in your build?
-
The short ones are rubycon and the tall one jamicon. I think they are all similar in what they do.
-
+1 to Timbo: I recently put Rubycons (got cheap on eBay) in my Traynor Bassmate . Seem to work fine. They're the black ones on the added perf board on the left.
-
Amazing how affordable some of those radials are compared to a similar axial.
I wonder why.....just because they can.....charge more that is.?
-
I use the Panasonic EE series type TS snap-in capacitors all the time. Amps perform well with them in place.
I like the high ripple current capacity, something that a lot of folks don't consider when designing. A lot of manufacturers don't even supply these specs.
-
Amazing how affordable some of those radials are compared to a similar axial.
I wonder why.....just because they can.....charge more that is.?
I think they probably sell 20x radial over axial. I guess it's a matter of volume.
Thanks for the replies, everybody!
-
I use the Panasonic EE series type TS snap-in capacitors all the time. Amps perform well with them in place.
I like the high ripple current capacity, something that a lot of folks don't consider when designing. A lot of manufacturers don't even supply these specs.
Thanks! The specs look much better for the snap-in form factor...Back to Mouser:)
-
I've been using/trying nichicon VZ(M) series, radial, 105 C. deg. Like them so far a lot. 22uf @ 450v, less than $1.00, if you buy 25.
Brad :icon_biggrin: