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Old 24th January 2013, 02:11 PM   #41
SY is offline SY  United States
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I'm still mystified, but I guess that's better than being offended.
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Old 24th January 2013, 02:21 PM   #42
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Quote:
Originally Posted by SY View Post
I'm still mystified, but I guess that's better than being offended.
I apologize, just in case you are no longer mystified.
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Old 24th January 2013, 02:52 PM   #43
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Originally Posted by AudioLapDance View Post
Dude, if you are going to theorize on molecules (or make-up chemistry) be aware that Sy is a specialist!
More than that, he is "The Specialist"
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Old 24th January 2013, 06:36 PM   #44
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"but in general ruffrecords makes a good point.."

Apropos to nothing in the topic, but I've been following RuffRecords work in developing valve-based recording gear and it seems that EVERY point he makes is a good one.
It's not been often in the last 40 years that I've actually enjoyed following someone's development and thought process.
Kevin, I think you (and many other's reading this) would enjoy a visit to his web site.

Quote:
Originally Posted by kevinkr View Post
I'm still using 100K stepped attenuators to maintain compatibility with older tube gear, but in general ruffrecords makes a good point.. A 25K or 50K pot or attenuator would be a much better choice wrt input tube miller capacitance provided that all sources contemplated perform adequately into the proposed load impedance that pot or attenuator represents. (What a mouthful.. )

Another obvious option is to choose tubes with low Cag and low mu, still a lower resistance pot would probably be a bigger win.
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Old 24th January 2013, 07:41 PM   #45
popilin is offline popilin  Argentina
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Quote:
Originally Posted by DrRick View Post
"but in general ruffrecords makes a good point.."

Apropos to nothing in the topic, but I've been following RuffRecords work in developing valve-based recording gear and it seems that EVERY point he makes is a good one.
It's not been often in the last 40 years that I've actually enjoyed following someone's development and thought process.
Kevin, I think you (and many other's reading this) would enjoy a visit to his web site.
Hey DrRick
Put the link, please, I too am interested.
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Old 25th January 2013, 02:59 AM   #46
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Humpf. Things were much simpler, back in my day. Volume pots were 500K, and the grid leak resistor was a pencil mark on a piece of bakelite with a screw terminal at each end of the mark.

The link: Yes, please.
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Old 25th January 2013, 07:33 AM   #47
DrRick is offline DrRick  United States
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Here you go boys: Custom Tube Consoles


Quote:
Originally Posted by popilin View Post
Hey DrRick
Put the link, please, I too am interested.
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Old 25th January 2013, 07:36 AM   #48
DrRick is offline DrRick  United States
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Hey Don,
Me Too!
Also, we never had any hum issues with out DHT's because once a week the horse-drawn storage-battery truck would drop by for a quick cell-exchange!


Quote:
Originally Posted by Don Hills View Post
Humpf. Things were much simpler, back in my day. Volume pots were 500K, and the grid leak resistor was a pencil mark on a piece of bakelite with a screw terminal at each end of the mark.

The link: Yes, please.
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Old 25th January 2013, 08:11 AM   #49
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Quote:
Originally Posted by DrRick View Post
Hey Don,
Me Too!
Also, we never had any hum issues with out DHT's because once a week the horse-drawn storage-battery truck would drop by for a quick cell-exchange!
Home delivery? Luxury. We had to take ours down to the local garage (auto mechanic workshop).

How come I can't buy B and C batteries any more? How come there's more hair growing out of my ears than on my head? Why isn't The Bob Hope Show on the radio any more? Time for my Geritol...

Thanks for the link.
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Old 25th January 2013, 09:00 AM   #50
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Quote:
Originally Posted by DrRick View Post
"but in general ruffrecords makes a good point.."

Apropos to nothing in the topic, but I've been following RuffRecords work in developing valve-based recording gear and it seems that EVERY point he makes is a good one.
It's not been often in the last 40 years that I've actually enjoyed following someone's development and thought process.
Kevin, I think you (and many other's reading this) would enjoy a visit to his web site.
I don't think I am THAT good but thanks for the kind words nonetheless.

People might also like my DIY site too:

http://www.ianbell.ukfsn.org/EzTubeMixer/


Cheers

Ian
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