[Hallicrafters] My First Boat Anchor Restoration: SX101 MkIII

[kc9cdt at aol.com]

Jason,
The voltages in the boat anchors can kill you, just like the 120-220 
VAC stuff you know about.
Move slowly and carefully, don't work on them if you don't have plenty 
of time and not when tired or distracted.

Don't let any of your body touch the chasssis when in there.
Keep one hand in your pocket when working with HV.
When soldering watch your eyes for splatter.

Get the correct probes etc so you don't short stuff out. A small screw 
driver with all but the tip taped is one good tool, and some clip on 
probes are good to have.
Before you probe something be sure you know what voltage to expect.
It's best to hook up probes with power off, then turn on to read.
1st, get a good VTVM, like a HP 410-B
Eventually you will want a good Sig. Gen. like a HP 8640-B
A scope is nice.

Once again..one big issue is...Don't be in a hurry.
If in doubt ask someone.
73,
Have fun,
Lee, KC9CDT





-----Original Message-----
From: Jason Hissong <jhissong at gmail.com>
To: hallicrafters <hallicrafters at mailman.qth.net>
Sent: Tue, Nov 15, 2011 8:34 am
Subject: Re: [Hallicrafters] My First Boat Anchor Restoration: SX101 
MkIII


Bob,

Yep.  I definitely want to learn.

Thanks
Jason

On 11/15/2011 7:48 AM, rbethman wrote:
> I'm sure that he really meant 12AU7A, BUT the typing ability is like
> many of us.  since they are sequential, he most likely meant 12, but
> instead, landed on 23.
>
> Jason - By doing the phono input, you have already tested the audio
> stage by getting a hum.  While it doesn't indicate that it is up to
> snuff, it DOES indicate functionality.
>
> You will need the manual, and the test equipment to completely check 
it
> out and get it up to full capability.
>
> Work with your local ham, and/or some others to do this.
>
> You will learn a lot, and learn where you can put your hands/test
> equipment, and HOW to do this.
>
> Bob - N0DGN
>
>

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