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USED, salvaged from school surplus equipment, not tested, no spec sheet.Listing is for one (1) each mystery controller card, Western Digital, product markings include WD1003-WA2 61-000107-00, comes exactly as shown in the photo.Attached Components Include:• Crystals NDK33-04, MP 24.000MHz• Socket Mounted IC Chip WD11C00C-JU
USED, salvaged from school surplus equipment, not tested, no spec sheet.Listing is for one (1) each mystery circuit board, Compaq board number 001498-001 a/w rev c, comes exactly as shown in the photo.Attached Components Include:• Crystals 41.53845MHz, 25.1750MHz• Socket Mounted IC Chips Compaq 82-90 113915-007, 122011-001
USED, salvaged from school surplus equipment, not tested, no spec sheet.Listing is for one (1) each mystery circuit board, C3-IF D/C 11-81 EC No. 460129A, no instruction manual, comes exactly as shown in the photo.Attached Components Include:• Heat Sink• Capacitor 300uF 30VDC• Transistor Motorola U8115, GE U-152
USED, salvaged from school surplus equipment, not tested, no spec sheet.A helpful commenter has stated that this board is "from an OLD Dictaphone model 241 dictation/transcription machine."Listing is for one (1) each mystery circuit board 42269728300, comes exactly as shown in the photo.Attached Components Include:• Heat Sinks• Trimmer 29-3 3K Ohm B•...
USED, salvaged from school surplus equipment, not tested, no spec sheet.Listing is for one (1) each mystery circuit board 870976641955VCC, product markings include 236090991971, comes exactly as shown in the photo.Attached Components Include:• Heat Sinks• Capacitor Sprague 50CMFD 40VDC• Transistors RCA467 U8014
USED, salvaged from school surplus equipment, not tested, no spec sheet.Listing is for one (1) each mystery circuit board, C3-IF 08-82 EC453862A, no instruction manual, comes exactly as shown in the photo.Attached Components Include:• Heat Sink• Trimmer Bourns 3005P-C30-501 500 ohm• Diode Fairchild HA 234• Resistors .1 ohm 5%• Capacitor Mallory 600MF 15V•...
USED, VINTAGE, salvaged from school surplus equipment, not tested, no spec sheet.Listing is for one (1) each mystery circuit board YBF N1845753-03, comes exactly as shown in the photo.Attached Components Include:• Bourns 3005P-C30-502 5K• Aluminum Package IBM 5118645 22-1
USED, salvaged from school surplus equipment, not tested, no spec sheet.Listing is for one (1) each mystery circuit board 70F N1845753-03, comes exactly as shown in the photo.Attached Components Include:• Aluminum Package 5118645 IBM 52• Bourns E-Z-Trim 3005P-C30-502 5K
USED, VINTAGE, salvaged from school surplus equipment, not tested, no spec sheet.Listing is for one (1) each mystery circuit board F-1845790-05 EC448913, comes exactly as shown in the photo.Attached Components Include:• Crystal ITT 2396608 6.25MHz• Transistors Motorola 275 7939, 183 025, 399 932• Aluminum Packages 361497 IBM 52, 2391722 IBM 52
USED, salvaged from school surplus equipment, not tested, no spec sheet.Listing is for one (1) each mystery circuit board EC460151A F-2354841-01, no instruction manual, comes exactly as shown in the photo.Attached Components Include:• LED's F9880 135, HP 007 219• Switches 7101 C&K, 7401 C&K• Transistor Motorola 179 U8208K• Capacitors 6.8uF 35V,...
USED, salvaged from school surplus equipment, not tested, no spec sheet.Listing is for one (1) each mystery circuit board 26073-4, comes exactly as shown in the photo.Attached Components Include:• Transistor: TIP34, TIP33, TIP37, Motorola 2N222A 139
USED, salvaged from school surplus equipment, not tested, no spec sheet.Listing is for one (1) each mystery circuit board 11076-01 X5, comes exactly as shown in the photo.Attached Components Include:• Trimpot 3009P-1-503 50K, 3009P-1-102 1K• Capacitors .1Z 50V, CM05FD, .01 150V• Transistors Motorola 2N4400, ITT 2N4124, 2N4126
USED, salvaged from school surplus equipment, not tested, no spec sheet.Listing is for one (1) each mystery circuit board Zinco S0501 BA165, no instruction manual, comes exactly as shown in the photo.Attached Components Include:• Buzzer EP 129• Diode 1N5401-OLGI• Capacitor 1000uF 10V, 220uF 40V• Transistor TY 2010GN, 28601SK• Board Soldered IC Chip NEC...
USED, salvaged from school surplus equipment, not tested, no spec sheet, manufactured 1978.Listing is for one (1) each mystery circuit board, Novation Inc. 410035K VCS4540, comes exactly as shown in the photo.Attached Components Include:• Switch: Alco MSS-4350R• Trimmers: 304H7922 20H252B, CO 10K• Capacitors: 10uF 25V, 47uF 25V, 10uF 35V• Transistor:...
USED, salvaged from school surplus equipment, not tested, no spec sheet.Listing is for one (1) each mystery circuit board RC 398187, product markings include 4946953-846488 77-664-13426-R, comes exactly as shown in the photo.Attached Components Include:• Heat Sink T-2003-010• Resistor Ohmite 40 Ohm• Capacitors .47MF, 100MFD 20VDC• Transistors LTE U7908...
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