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Audio > Audio Tubes > Re: NFB101 Part...
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Re: NFB101 Part 3

by "Iain Churches" <IainNG@[EMAIL PROTECTED] > Apr 11, 2008 at 08:19 AM

"Iain Churches" <IainNG@[EMAIL PROTECTED]
> wrote in message news:...
>
>
> "Patrick Turner" <info@[EMAIL PROTECTED]
> wrote in message
> news:47FDDE34.F381F389@[EMAIL PROTECTED]
>>
>>
>> Iain Churches wrote:
>>> But what does he do if he uses (as I do) a mu-follower
>>> for the input stage. There is no anode load.
>>
>> The Jolida 502 amp has a SRPP input stage using a 12AX7 with 470 ohms
Rk
>> for the
>> bottom triode and 1k for the top triode.
>>

So, let's consider a simple mu-follower, with, say a 22k anode load
for the bottom triode, with 1k2 above it as the cathode resistor for the
top triode.  Would I be right in thinking that one could start with a
2k2 and say 1nF (in series) across this 22k anode load.

Would this also have an effect upon the output from the low Z
output above it from the 1k2 cathode resistor?

Best regards
Iain
 




 5 Posts in Topic:
Re: NFB101 Part 3
"Iain Churches"  2008-04-11 08:19:12 
Re: NFB101 Part 3
Patrick Turner <info@[  2008-04-11 09:54:32 
Re: NFB101 Part 3
Patrick Turner <info@[  2008-04-11 10:52:29 
Re: NFB101 Part 3
"Iain Churches"  2008-04-11 21:38:03 
Re: NFB101 Part 3
Patrick Turner <info@[  2008-04-12 00:12:42 

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tan12V112 Sun Sep 7 17:21:13 CDT 2008.