If you are purchasing a kit and need switches or other
parts for that kit or another project, Jackson Harbor Press
now offers a small assortment of surplus (new old stock) parts for sale.
Quantities are limited, please email Chuck:
for availability before ordering any parts
Jackson Harbor Press reserves the right to limit quantities for sale, please, this is intended for small quantities.
When ordering a kit by mail, email first for availability and shipping cost, then print out a Parts
order form to figure out your parts total and add it to
the kit order total and mail in both forms and payment.
Click on the pictures for a larger view of the items.
Are there any other parts you'd like to purchase ? Please email Chuck with your suggestions.
07/16/2015 LM389 audio amplifier chip + 3 NPN transistors, vendor is MCE , 18 pin DIP, $1 each
This unique combination of an LM386 audio amplifier with 3 NPN transistors never really caught on but might be used in
any number of circuits where 3 transistors (which I assume are fairly closely matched) could be used with an audio amplifier. Here is the
National version of the datasheet.
Here is an app note featuring the LM389: National AN-264 authored by the late Jim Williams.
Here is a Popular Electronics article on the LM389: Lou Garner column.
also a steam whistle Lou Garner excerpt.
Jim Williams article on the LM389 in the Electronics Designers Casebook 5
07/16/2015 LM386N-4 audio amplifier chip, vendor is National Semiconductor, 8 pin DIP, $1 each
07/03/2015 C&K Unimax "microswitch" momentary snap action lever switch, SPDT, new Old stock, made in China - 60 cents
date code: 2008, part number: TMCGF5VT2740C,
07/03/2015 C&K 7201 DPDT switch, new Old stock, made in USA - 60 cents
2-56 sized hardware can be used in the mounting holes.
01/09/2014 USA made C&K 7105 momentary-center off-momentary switch, new Old stock, three for $1.00
fits in a 1/4 inch mounting hole or on a circuit board,
NO hex panel mounting nuts are included (8/20/2023)
These 7105 switches have a short handle and I find them hard to press.
10/26/2012 USA made C&K 8121SHZGE momentary switch, new old stock in bag with hardware & separately bagged cap: $2.00
fits in a 1/4 inch mounting hole, swith has 3 solder lugs: normally open, normally closed and common.
The 8121 is the top of the line C&K momentary switch.
Digi-Key sells the latest imported 8121 for more than $7 without a cap
see the C&K 8020 page for data
1/15/2009 USA made C&K U811 momentary switch & with cap: $2.50
fits in a 1/4 inch mounting hole, with solder lugs normally open, normally closed and common.
The U811 is the UL rated version of the top of the line 8121 momentary switch.
see the C&K 8020 page for data
black cap for the 8121 and U811 switches: 3/$1
USA made C&K 7203 DPDT, center off switches: 75 cents
fits in a 1/4 inch mounting hole.
USA made C&K 1108 momentary slide switch: 15 cents
C&K D6R40 red switch: 10 cents
these are board mount, momentary switches, will fit on any .1" perf board
C&K D6R90 black switch: 10 cents
these are board mount, momentary switches, will fit on any .1" perf board
note that some of the leads are tarnished
surplus Projects Unlimited AT-121 piezo speaker: 35 cents
Note that the leads are only 1.5 inches long.
05/04/2016 C&K 7101 SPDT switch, new Old stock, made in Costa Rica - $1.50
This switch has a short handle, a little harder to throw than other switches, also has the oversized, behind the panel round collar.
C&K 2 pin black slide switch: 25 cents
these are board mount, USA switches
note that some of the leads are tarnished
C&K SDA08H1BD 8 position black DIP switch: 25 cents
made in China switches
see the data sheet page 3 for more information
11/16/2016 C&K 8121 SPDT switch, new Old stock from 1984, made in USA - $1
This circa 1984 switch is listed with C&K part number 8121 HCGE which isn't a current designation.
Each switch comes with a single hex nut and washer.
07/22/2017 C&K 7201 DPDT switch, new in bag - Old stock from 1995, made in USA - $2 each
This switch is listed with C&K part number 7201P4Y1ZQE22
A unique panel mounted (1/4 inch hole), black, short bat handled version which includes a somewhat hard to thread on finish nut - it also includes a
hex nut, panel washer and a lock washer, all in the black finish. The bags are a little grungy but the switches are fine.
This DPDT switch has 6 solder lugs - Mouser / Digikey don't stock this item but their listed prices are well over $10 each !
After the finish nut has been fully threaded on the switch the hex nut is tightened (from the back of the panel) to secure the switch.
02/14/2018 CPE-6080 large piezo, new - $2.50 each
These large, telephone ringer style of piezos are becoming harder to find.
The
CUI datasheet provides more information on this part.
06/10/2019 C&K 7208 DPST momentary switch, new Old stock, made in USA - $1 each
The 7208 is a mometary switch with a long bat handle, single hex nut.
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