schematic critique

General discussion area for tube amps.

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centervolume
Posts: 19
Joined: Mon May 30, 2011 3:41 am
Location: frankentitz

draft 2

Post by centervolume »

on my way to developing skills to handle the rigors of graph paper, this lined school paper struck me as a convenient intermediary

not positive on the pi filter or the value of plate load resistor on V2b, but this should have addressed most of the concerns presented by the previous draft.

Thanks again for those of you who chimed in, a couple of the items I just forgot and a couple others I was not aware enough to know to include
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a vacuum tube?! is that fire in there??
centervolume
Posts: 19
Joined: Mon May 30, 2011 3:41 am
Location: frankentitz

layout view

Post by centervolume »

I am posting this to check for visibility as try to I improve my drafting.

I'm not yet drawing in the PT, rectifier and bias connections because the main board, pots and sockets connections are still in process.

Quick question: the left terminal of the middle pot, that should go to ground right?
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a vacuum tube?! is that fire in there??
SilverFox
Posts: 222
Joined: Fri Feb 10, 2012 6:03 pm

It appears so

Post by SilverFox »

The way it's drawn in the schematic the left terminal, when looking from the rear of the control, should be grounded.

I ground all the controls on the can, (back side of the pot) with a common lead and then run that to ground. But you need a hot soldering iron and flux for that and a bit of a technique. A good connection to the chassis with a star washer on the controls also works well.

silverfox.
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