[Central-Electronics] Restore CE100V
Grant Youngman
nq5t at comcast.net
Tue Feb 8 18:54:08 EST 2005
You're going to find a number of common problems:
1. Mercury batteries in the clipper
2. MOD CAPS (affecting sideband suppression)
3. Hardened PTO grease and stiff or "grainy" vernier tuning
You might want to check out http://tusaconsulting.com/ce.htm for some common
tips. Nick Tusa is pretty much the real thing when it comes to a 100V guru.
Also, while it's possible to clean up the PTO mechanism yourself, you might
consider a rebuilt PTO from Nick. Saved me a lot of time and trouble when I
restored my 100V.
Grant/NQ5T
>
> Hello everyone. I am brand new to this list. I will be
> restoring a CE100V that has been sitting in a closet for
> about 40 years; used it when I was kid. Want to do a good
> job so am asking for advice. The 100V is in very good
> condition, considering its age and ignoring the dust, and is
> unmodified in any way. The 100V serial number is E 166. I
> have the following
> literature:
>
> "Instruction Manual Model 100V Exciter-Transmitter", P215, 7-15-59.
> "Mixer Change", 68.1, 12/14/60
> "Procedure to Modify Model 100V for Improved Suppression of
> Unwanted Mixer Products", February 1961.
> Large fold-out schematic (feels rather delicate), 7-17-59.
>
> I am an EE specializing in RF and have access to a lab. The
> following problems are evident:
> 1. VCO tuning knob is extremely stiff; I assume the lubricant
> has deteriorated.
> 2. Fan is difficult to turn; I also assume the lubricant has
> deteriorated.
> 3. Batteries in limiter are corroded.
> 4. Meter and frequency dials are darkened in color.
>
> Have not applied power to it yet. Does the literature I have
> provide enough info to do a complete alignment? Where do I start?
>
> Lyman Hays
> K7LH
>
>
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