Hello Again John,
That's the Legendary Ten Tec Service, of which
I spoke. So you will know. I had an issue with an 100 Pf Cap in one of my
Amps recently. It also was 100 Pf and in the plate circuit of the tubes.
This capacitor was rated at 6 Kilovolt. And was replaced by a New one,
which came to me New and at about half the size of the original. So far
there have been no Mushroom Clouds screaming towards the ceiling and as a
matter of fact. This particular SB-220 Amp is my Daily Driver, for calling
the several Nets I do each week. A typical Net lasts about an hour and I do
not drive the Amp really hard. My main concern now is in making the 3-500ZG
tubes last a good long time. I have no concerns about my replacement
Capacitor. Please, keep us all posted with your results!
73 from Wade/KJ4WS
On Tue, Aug 27, 2013 at 8:06 AM, John Huffman <hjohnc@gmail.com> wrote:
> Wade and all -
>
> I called Ten Tec and it's 100pf and 2KV. They had none in stock and said
> they were hard to find.
>
> I searched Mouser and found some discs at 100PF and 6KV. While physically
> smaller, they have the specs and are less than a dollar a piece. I bought
> 5 (you never know) and shipping was still more than the parts :-)
>
> Probably just a bad component so I'll pop in the new one and see what
> happens.
>
> Thanks to all for your suggestions on and off the list.
>
> 73 de K1ESE
> John
>
>
> On 8/27/2013 7:10 AM, Wade Staggs wrote:
>
>> Hello John,
>> I had a look at the schematic and it seems to be an 100
>> PF Capacitor. Your original message said that the Circuit Board location
>> is
>> C42. And that it is on the LPF Board.This is where I looked on the
>> schematic. Sorry, I can't tell you the voltage rating. Maybe the original
>> part has this printed on it, if it is not burned too badly. Hopefully,
>> someone with an Amp open and on their bench can give you more details.
>>
>> 73 from Wade/KJ4WS
>>
>>
>> On Mon, Aug 26, 2013 at 3:03 PM, John Huffman <hjohnc@gmail.com> wrote:
>>
>> I burned up a capacitor in the low pass filter of my Hercules 2
>>> amplifier.
>>>
>>> According to the schematic it is C42 with a value of "100".
>>>
>>> I'd like to replace it. Is "100" the value on the schematic in PF? It's
>>> a
>>> big yellow disk. What voltage cap should I buy?
>>>
>>> 73 de K1ESE
>>> John
>>>
>>>
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