UPDATE from original December 25, 2005 posting
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Finding the correct illuminated (neon lighted) rocker switch used in the
power base units for the Weller soldering stations: WTCPS, WTCPT, WLC100,
WPC300, EC1001, EC3000, early EC1002 can be a daunting task.

Through the years, Weller has used different suppliers for this switch:
C&K (ITT) and Carling (621 series) being the 2 most common.

Finding these switches readily available as component replacements is
difficult.
Some manufacturers only sell as an OEM component, eliminated the specific
model, or require a special order with a quantity of 100 to 1,000 units.

Specifications of this illuminated (neon) rocker switch

120 VAC at 8 A
SPST (On-None-Off)
120 VAC neon illumination
..187" quick disconnects for ease of replacement with existing Weller wiring

The Carling Switch current used by Weller has a nice rounded edge to the
translucent rocker --
the NKK and Cherry have a more rectangular, distinct edge.

GC / Waldom Electronics now has the exact Carling switch being used in
current Weller production. I made a request to the company last year for
carrying this part.
GC Switch number: 35-696 SPST ON / OFF- RED CLEAR ROCKER
As of June 15th, they reported over 240 in stock !
Cost was about $ 2.50 (very reasonable for a blister pack part)
http://www.gcwaldom.com/home.html


Two additional candidates are illuminated rocker switches from NKK Switch
and Cherry.
These suppliers also have a 240 VAC (neon) version in their catalogs for
Europe and other regions that use 220 to 240 VAC for line voltage.
The Cherry model comes in an Amber and Green color option.

NKK CWSB21CACF (this is DPST version) ..
which works by NOT using the "2a" contact (heat shrink insulation over QC
lug).
Allied Electronics part number: 870-0119
Allied & NKK did not list the SPST version in the catalog.
I have personally used this part for replacing a defective switch in a PU120
based unit (WTCPS) - it works fine.

Cherry LR Series ... LRA22H2BBRLN --- SPST
Allied part number 908-0105
I have personally used this switch for replacing a defective switch.
At 97 cents - it is a GREAT inexpensive buy
http://www.cherrycorp.com/english/rockers/lr_rocker.htm

Keep the Weller power base stations running (and looking good) !

Greg
w9gb