=== Robot Group Parts ===

This is where the list of parts is maintained. The format is to show the quantity, the a text description, a part number (if available) the donating party, and a current replacement cost of the item. Most of these parts are used, but in good working condition.  To purchase any of these parts, contact one of the Robot Group elected officials for specific instructions (Texas State Sales Tax is not included in this list of prices and must be included at 8.25%). A preliminary listing is here:

||'''Quantity'''||'''Picture'''||'''Part number'''||'''Donated By'''||'''Price'''||'''Description'''||
||4||http://www.allelectronics.com/images/gold/full/DCM-245.jpg||CAT# DCM-245||Glenn||$15.95||Pittman gearhead (gear reduction drive) DC motors , part numbers {{{GM9232C113-R1}}}. These motors are excellent for uses such as reversible remote control applications such as driving wheel vehicles or controlling critical motion. Full rated DC voltage is 24 vdc. The 1/4"OD flat-shaft rotates at the approximate measured speeds below at the various voltages shown. To reverse direction of travel, reverse polarity. Input to output drive ratio is 65.5:1, no matter input voltage. 24 vdc - 108 RPM, 12 vdc - 56 RPM, 6 vdc - 30 RPM, 3 vdc - 6 RPM. The two part numbers -R1 and -R3 (revision 1 and revision 3) appear to be identical, and no visible or performance differences can be detected between the two. The motors have two drilled and tapped holes (1.5 inches on-centers) on the front shoulder for mounting. Weight is slightly under one pound. Length of body is 3-1/8 inch. Add 5/8" for length of shaft.||
||110||http://www.allelectronics.com/images/gold/full/EC-3945.jpg||CAT# EC-3945||rick||$3.00||390 UF 450 VDC SNAP-IN CAPACITOR Nippon Chemi-Con 04F04L. 450V 390uF. 85degC. 1.4" diameter X 1.85" high.||
||3||(image not available yet)||(none)||Glenn||$5.95||Pittman 30.3vdc (all have short leads).  Motors look like Pittman GM9232 but without gearhead.||
||37||(image not available yet)||(none)||Glenn||$11.95||Motors w/gearhead 24vdc, various branded labels: Sanyo, Samaya, & Autotrol. 38rpm & 40rpm @ 24vdc, some labelled, some not. All have solderable leads/connectors at end of motor opposite output shaft.||
||5||(image not available yet)||(none)||Glenn||$19.95||Motors, DC, voltage unknown, Maxon "A-Max" (all have short leads).  Swiss made precision DC motor with ball-bearing shaft.||
||117||(no image available yet)||(none)||Rick||$0.15||Heatsink, slips over TO-220 sized device, steel, P/N THM6047, some blued, a few black.  Clip-over heatsink for TO-220 sized device (transistors or MOSFETs, TRIACs).  Economy design, easy to install and remove.  Slips sideways over vertical metal tab.||
||86||(no image available yet)||(none)||Rick||$0.25||Heatsink, slips over TO220 sized device, steel, unpainted. Slip-over heatsink for TO-220 transistors or MOSFETs, TRIACs, etc same size.  Intended to be soldered onto board over semiconductor device. Maximum power dissipation due to front and back face contact.||
||104||(no image available yet)||(none)||Rick||$0.20||Electrolytic Capacitor, 220uf 63vdc. Power supply filtering capacitor, 85 degrees C.||
||171||(no image available yet)||(none)||Rick||$0.25||Electrolytic Capacitor, 4700uf 25vdc. Power supply filtering capacitor, 85 degrees C.||
||90||(no image available yet)||(none)||Rick||$0.20||Metal Oxide Varistor (MOV), 35VAC, P/N 9437. Capacitance: 3900 pf. Clamping Voltage: 110 V. Voltage Rating AC: 35 VAC. Voltage Rating DC: 45 VDC. A metal oxide varistor, or MOV, is a voltage dependent, nonlinear device that provides excellent transient voltage suppression. When exposed to high transient voltage, the metal oxide varistor clamps voltage to a safe level. A metal oxide varistor absorbs potentially destructive energy and dissipates it as heat, thus protecting vulnerable circuit components and preventing system damage.||
||18||(no image available yet)||(none)||Rick||$0.20||Metal Oxide Varistor (MOV), 7VAC, P/N 9041.  Capacitance: 490 pF. Clamping Voltage: 34.5 V. Voltage Rating AC: 6.5 VAC. Voltage Rating DC: 9 VDC.  A metal oxide varistor, or MOV, is a voltage dependent, nonlinear device that provides excellent transient voltage suppression.  When exposed to high transient voltage, the metal oxide varistor clamps voltage to a safe level.  A metal oxide varistor absorbs potentially destructive energy and dissipates it as heat, thus protecting vulnerable circuit components and preventing system damage.||
||25||(no image available yet)||(none)||Rick||$0.10||(unknown protection device), P/N "H N4 275L20".  (red MOV looking device with P/N "275L20" on face)||
||197||(no image available yet)||(none)||Rick||$0.05||(unknown filtering device) "0.1|63" (on top), "05 N-F3 WIMA" (on face).  (red rectangular part)||
||36||(no image available yet)||(none)||Rick||$0.10||AC filter capacitor, ".1uf K 275V~" (on top).  (gray rectangle part) "1.47.NO MKT X2" "40/100/21 SH L E8" (on face)||
||85||(no image available yet)||(none)||Rick||$0.10||AC filter capacitor, ".47J250" (on top).   (gray rectangle part) (nothing on face)||
||24||(no image available yet)||(none)||Rick||$0.05||AC filter capacitor, various. (nothing on face of either part). (blue rectangle part) 103K100, 154K100, 223K100 (on top). (white rectangle part) .22J100PL, .27K100PL, .33J250PL (on top).||
||37||(no image available yet)||(none)||Rick||$0.20||Electrolytic Capacitor, 2.2uf 63VDC.  Power supply filtering capacitor, 85 degrees C.||
||248||(no image available yet)||(none)||Rick||$0.20||Electrolytic Capacitor, 22uf 25VDC.  Power supply filtering capacitor, 85 degrees C.||
||61||(no image available yet)||(none)||Rick||$0.20||Electrolytic Capacitor, 47uf 25VDC.  Power supply filtering capacitor, 85 degrees C.||
||317||(no image available yet)||(none)||Rick||$0.20||Tantalum Capacitor, 33uf 25VDC.||
||???||(no image available yet)||(none)||Rick||$1.50 / bag||Ceramic Disc Capacitors, various (approx 75 pcs)||
||9||(no image available yet)||(none)||Rick||$1.25 / bag||Electrolytic Capacitors, various||
||198||(no image available yet)||(none)||Rick||$0.25||Flex-metal microswitch, thru hole solder mount, long/hard button. Four legs, two legs common each, button pushed forces all common.||
||263||(no image available yet)||(none)||Rick||$0.25||Flex-metal microswitch, surface mount, soft/short button. Four legs, two legs common each, button pushed forces all common.||