MORE CAP VALUE TERM QUESTIONS

[Jerry2013]

I have an old brown drop capacitor in the Alamo Fury amp rated 50v "SE".
WHAT DOES THE "SE" stand for?
That same Cap is rated at 22uf =/-20% "LE".
What does LE mean.
Thanks

[Leo_Gnardo]

I have an old brown drop capacitor in the Alamo Fury amp rated 50v "SE".
WHAT DOES THE "SE" stand for?
That same Cap is rated at 22uf =/-20% "LE".
What does LE mean.
Thanks

About SE & LE I'm stumped. LE by context has to do with accuracy, so it's no larger than 22 but not less than 22 minus 20%. But if you replace it with a 22uF 50V part you won't go wrong. Don't worry, just develop a habit of replacing old electrolyitics. They don't last forever; expect failures when 25-40 years old or more.

What concerns me, is Alamo made a lot of hot-chassis amps. Meaning one side of the AC line is connected to the chassis, making them a sure-fire shock hazard. To check, mostly what you'll notice is the absence of a power transformer. Plus a tube set whose filaments are series-wired and add up to nearly 110V, say 35W4, 50L6, 12AU7, 12AX7.

If your Fury turns out to be hot-chassis amp please don't get shocked. And don't try simply grounding the chassis with a 3-wire cable set. You'll have to use an isolating transformer to make it safe. I tried looking up the Fury schematic to be sure but no dice.

[martin manning]

NO NEED TO SHOUT... If you can determine value, voltage, and tolerance you are in good shape. Keep in mind that original parts may be over-rated due to availability issues at the time of assembly. Letters and numbers that are not a part of the standard markings are likely to be date and or batch codes used by the manufacturer.