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Old 12th October 2003, 05:23 AM   #21
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Default Pics at last

I could not get the pics under 100K so made a quick Mac Homepage. I think you will have success now (If I can remember the addy correctly) If the link does not work I have it below.
Its Waaaaayyy past my bedtime.
Nite nite

http://homepage.mac.com/andrewbee/FileSharing3.htmlpics here
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Old 15th October 2003, 06:40 PM   #22
Eric is offline Eric  United States
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Thanks for the pix, Andrew - quite an impressive array of DIY! My collection is growing, but very slowly...
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Old 16th October 2003, 01:10 AM   #23
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thanks. Unfortunately I have quite a bit more and am now needing to sell some of it to make space. it is a learning experience though.

My problem is i spend more time making stuff than listening to it. I dont drink, smoke or carouse so this is my vice.
I have all my toys at home so I don't need to go anywhere to have fun.

Andrew
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Old 16th October 2003, 03:06 PM   #24
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Quote:
Long answer is the gainclone is better overall from lows to highs.


Hi Andrew,

Long time no speak..

Cheers,
Bas
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Old 16th October 2003, 03:33 PM   #25
EC8010 is offline EC8010  United Kingdom
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Default That cathode bypass capacitor...

You do need 1000uF rather than 100uF, otherwise the anode resistance of the 417A will rise at low frequencies, and cause bass loss due to the finite primary inductance of the inter-stage transformer. The high transconductance oif the 417A coupled to that low value cathode bias resistor means that you need a large capacitor.
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The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...
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Old 16th October 2003, 04:09 PM   #26
G is offline G  United States
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Thanks for the explanation about the 1000uF cap. I've never built a amp using a interstage transformer and so was unaware of this problem and solution.

G
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Old 16th October 2003, 05:52 PM   #27
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Hi Bas!
I thought I was busy but I think you have been busier

EC8010. Yup. I used Nichicon Muse's, 1000uF on the 5842 and 100uF on the 2A3.

It is time to rebuild it but I have two projects inline, D-57 cabinets
for my 208 Sigma's and a 12B4 preamp as well.
I start expanding my house next week so will have more space to keep my ever expanding mound of diy stuff



Andrew
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Old 17th October 2003, 03:39 PM   #28
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I thought I was busy but I think you have been busier
Most stuff is still in progress though...:-)

By the way ...your tube amp chassis look great!!!

Cheers,
Bas
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