[Drake] Drake L-75 Amplifier Question

[Bob Camp]

Hi

Well the 1N4148's on the other side of the cap are only rated at 100 
volts. It forms a 10:1 attenuator with the C41. Anything past about 1KV 
is probably overkill.

Another way to look at it is that 1KW RF is about 220 VAC (RMS) which 
comes out to around 320 volts peak. Again a KV or so on the cap would 
do just fine.

	Enjoy!

		Bob Camp
		KB8TQ


On May 22, 2004, at 9:33 PM, Alfred Carlson wrote:

> I have recently restored a beautiful condition L-75 with new tube and
> electrolytics.  I noticed that the relative power coupling capacitor 
> had
> been removed.  At component location C-40, it's a 6.8pf cap,  I need to
> know the voltage rating.  Three to four DCKV I think should do it but,
> does anyone know what the factory voltage rating on that cap should
> be???   Thanks and 73 de Fred...
>
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