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Welcome To The Sphere Research Canadian Test Equipment Site !
Tektronix 311-XXXX-XX Series Vendor Supplied Pots/Controls
307 / 310-XXXX-XX Series Custom Thick Film Resistor Networks Available
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Sphere Research Corporation
3394 Sunnyside Rd.
West Kelowna, BC, Canada V1Z 2V4
Phone: +1 (250) 769-1834
FAX:+1 (250) 769-4106

A great source for test equipment, repairs, calibrations, useful metrology information, and of course, SLIDE RULES!

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All parts here are original Tek items, even if/when marked with the manufacturer's root number, rather than 311-xxx-xx, etc. All new parts are from Tek factory or service parts stock, used parts are carefully removed from Tek equipment. Where possible, we do a functional check on used parts, but all used items are supplied as-is.
IMPORTANT: there is no minimum order, but please see our FAQ for detailed shipping information world-wide.

307- Tek Resistor/Divider Networks
Picture Tek P/N Function Qty. New
Used
Price
307-0122-00 307-0122-00 Dale 50 ohm NTC thermistor, used in many compensation networks and fan controls. 100 New $2.00
sim to:
307-0290-04
307-0290-03 Custom thick film resistor network SORRY, SOLD New $12.00
307-0290-04 307-0290-04 Custom thick film resistor network SORRY, SOLD Used $10.00
307-0290-04 307-0290-04 Custom thick film resistor network, NEW, factory boxed SORRY, SOLD New $20.00
New, Factory Boxed 307-0292-00 Custom thick film resistor network, vertical deflection plate termination network. 2 New $20.00
307-0292-13 307-0292-13 Custom thick film resistor network, vertical deflection plate termination network (complete with leads) 2 Used $12.00
no pic 307-0296-00 Custom thick film resistor network 2 New $12.00
no pic 307-0304-00 Custom thick film resistor network 1 New $12.00
307-0314-01 307-0314-01 Custom thick film resistor network 1 New $12.00
307-0316-00 307-0316-00 Custom thick film resistor network 2 New $10.00
307-0333-00 307-0333-00 Custom thick film resistor network 1 New $12.00
307-0375-00 307-0375-00 Custom thick film resistor network 1 New $12.00
307-0386-00 307-0386-00
307-0386-03
Custom thick film resistor network SORRY, SOLD New $12.00
no pic 307-0386-02 Custom thick film resistor network. Tested SORRY, SOLD Used $10.00
307-0396-00 307-0396-00 Custom thick film resistor network 1 New $12.00
no pic. 307-0400-00 Custom low resistance resistor network, factory boxed. 2 New $12.00
307-0431-01 307-0431-01 Custom thick film resistor network. Tested 1 Used $10.00
307-0431-01 307-0431-01 Custom thick film resistor network. Factory new, Boxed. 1 New $20.00
no pic 307-0471-00 Custom thick film resistor network (465M). Tested 2 Used $10.00
no pic 307-0471-01 Custom thick film resistor network (465M). Tested 3 Used $10.00
307-0490-00 307-0490-00 Custom thick film resistor network, used in SC50X series scope HV supplies. Tested SORRY, SOLD Used $10.00
307-0562-00, CLICK for bigger PIC!
CLICK for bigger PIC!
307-0562-00 Custom thick film resistor network, SC504 vertical input attenuator. Tested, known good. 2 Used $40.00
no pic 307-0687-01 Custom thick film resistor network (2336). Tested 1 Used $10.00
307-0780-01 307-0780-01 Tek thick film resistor network. SORRY, SOLD NEW $14.00
Black DIP Assembly 307-1054-00 Precision matched resistor network. 2 NEW $20.00
307-1155-00 307-1155-00 Caddock precision matched resistor network. 3 NEW $20.00
307-1154-00 307-1154-00 Custom thick film deflection plate termination network (2465). Tested 2 Used $20.00
307-1252-00 307-1252-00 Hermetic precision matched resistor network. 2 NEW $20.00
307-1608-00 307-1608-00 Raychem 35V/U110 1.1A Polyswitch (auto-resettable fuse). Radial style. 100 New $2.00
307-1671-00 307-1671-00 600 Ohm (room temperature) varistor/thermistor. Radial style. 430 New $1.00
307-2003-00 307-2003-00 Thick film custom resistor network. 4 NEW $12.00

Tek 307- Attenuators
Tek attenuators, CLICK for bigger PIC!
Click for bigger PIC!
Tektronix 307-10XX Series Compensated Attenuator Modules

* 307-1010-01, 2X Module
* 307-1011-00, 4X Module
* 307-1012-00, 5X Module
* 307-1013-01, 02, 10X Module
* 307-1014-01, 100X Module
Widely used in 400, 5000 and 7000 series scopes and plug ins. Got a bad, uncompensatable section that just won't adjust right? Here's your chance to fix it! Inventory constantly changes, so check if you need something not shown.
Your choice, $14-
Guaranteed
We have a few boxed new stock units from Tek, $20 each.


310- Tek Non-Inductive Resistors
Picture Tek P/N Function Qty. New
Used
Price
310-0507-00 310-0507-00
310-507
Non-inductive power resistor, 30K, split 24K/6K Ohms. 14 New $15.00
310-0555-00 310-0555-00
310-555
Non-inductive power resistor, 6K, split 3K/3K Ohms. 10 New $15.00
310-0602-00 310-0602-00
310-602
Non-inductive power resistor, 1K Ohms. 4 New $15.00
310-0614-00 310-0614-00 Non-inductive power resistor, 41.5K Ohms. 3 Used, Tested $12.00
310-0623-00 310-0623-00 Non-inductive power resistor, 650 Ohms. 1 Used, Tested $12.00
310-0701-00 310-0701-00 Non-inductive power resistor, 430 Ohms. 2 Used, Tested $12.00




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Tek 311- Pots/Controls
Picture Tek P/N Function Qty. New
Used
Price
311-004 200 Ohm Type J, AB SORRY, SOLD Used $5.00
311-005 500 Ohm Type J, AB SORRY, SOLD Used $5.00
311-008 2K Type J, AB 3 Used $5.00
311-015 10K Clarostat 3 Used $5.00
311-016 10K RV4 Style, Clarostat 3 Used $5.00
311-018 20K Type J, AB 2 Used $5.00
311-023 50K Type J, AB 4 Used $5.00
311-026 0.1M Type RV4 Style 1 Used $5.00
311-042 2M Clarostat 1 Used $5.00
311-0043 311-043 2.5M Clarostat HV style 1 Used $6.00
New factory bagged 311-0053-00 20K, large diameter 5W pot, tek factory bagged. 3 New $11.00
311-0075-00 311-0075-00 5M SORRY, SOLD Used $5.00
311-0091-00 311-0091-00 AB 1K Type W 3 Used $5.00
311-0125-00 Clarostat 50K Ohm, short shaft, late production 1 New $7.00
311-0149-00 311-0149-00
311-149
Dual Concentric 100K/200K, AB Type J 3 New $19.00
311-149 311-149 Dual Concentric 100K/200K, Clarostat 1 Used $12.00
311-0162-00 311-0162-00 Clarostat 1M Ohm, late production 2 New $12.00
311-0172-00 311-0172-00 Clarostat 2.5K 2 Used $5.00
311-0254-00 311-0254-00 CRL/Clarostat 5M, HV insulated, c/w snap-on insulator. SORRY, SOLD Used $15.00
311-0258-00 311-0258-00 Clarostat 100 Ohm 2 New $5.00
311-0260-00 311-0260-00 2M HV insulated 5 New $11.00
311-285, CLICK for bigger PIC!
CLICK for bigger PIC!
311-0285-00
311-285
Tek custom 880 Ohm pot with detent and long extension shaft (fine adjustment control), factory packaged new spares. 6 New $15.00
311-0288-00 311-0288-00
311-288
Tek custom 780 Ohm pot with detent and long extension shaft (fine adjustment control), factory packaged new spares. 6 New $15.00
311-291, CLICK for bigger PIC!
CLICK for bigger PIC!
311-0291-00
311-291
Tek custom 680 Ohm pot with detent and long extension shaft (fine adjustment control), loose packed new spares. 4 New $15.00
311-0297-00 311-0297-00
311-297
Tek custom 215 Ohm pot with detent and removable shaft (fine adjustment control), factory packaged new spare. 5 New $15.00
311-291, CLICK for bigger PIC!
CLICK for bigger PIC!
311-0298-00
311-298
Tek custom 680 Ohm pot with detent and long extension shaft (fine adjustment control), loose packed new spares. 2 New $15.00
311-0310-00 311-0310-00 Clarostat 5K 3 Used $5.00
311-0314-01 311-0314-01 2M HV insulated 1 New $15.00
311-0349-00 311-0349-00 Clarostat 2M, HV bushing 1 Used $15.00
311-0360-02 back view
311-0360-02 side view
311-0360-02 Bourns
Model 3540S-425-502 5K, 10 Turn, with setscrew shaft (accepts a smaller shaft to be inserted from the front, and then tightened with the side setscrew).
6 New $19.00
311-0386-00 311-0386-00 Bourns/Spectrol 2K, 10 Turn. 3 Used $15.00
311-0387-00 311-0387-00 5K 2 New $6.00
311-0397-01 311-0397-01 Clarostat 2M, HV Insulated 5 New $15.00

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Picture Tek P/N Function Qty. New
Used
Price
311-0429-00 311-0429-00 Clarostat Dual 100K/10K SORRY, SOLD Used $7.00
311-0429-00 311-0429-00 Clarostat Dual 100K/10K SORRY, SOLD New $12.00
311-0433-00 311-0433-00 AB 100 1 Used $5.00
311-0442-00 311-0442-00 AB 250 Ohm 1 Used $5.00
311-0443-00 311-0443-00 Clarostat 2.5K RV6 style. 2 New $9.00
311-0458-00 311-0458-00 CRL 5K 1 Used $5.00
pic to come 311-0462-00 AB 1k 1 New $8.00
311-0462-00 311-0462-00 AB 1k 4 Used $5.00
311-0463-00 311-0463-00 AB 5k 1 Used $5.00
311-0465-00 311-0465-00 AB 100k 3 Used $5.00
311-0467-00 311-0467-00 Clarostat 100K, also w/cable 3 Used $5.00
311-0480-00 311-0480-00 AB 500 5 Used $5.00
311-0496-00 311-0496-00 AB 2.5k 2 Used $5.00
311-0511-00 311-0511-00 CRL/Clarostat 10K with HV insulator SORRY, SOLD Used $22.00
311-0541-00 311-0541-01 AB 20k 1 Used $5.00
311-0542-00 311-0542-00 Centralb, 10K/50K concentric, extended bushing. 1 Used $15.00
Factory packed, new 311-0542-01 Centralb, 10K/50K concentric, extended bushing. 1 New $29.00
311-0546-00 311-0546-00 AB Type W, 10K 7 Used $5.00
311-0546-00 New 311-0546-00 Clarostat, late production, 10K 3 New $9.00
311-0548-00 311-0548-00 Ohmite 25 Ohm, miniature wirewound power pot (for lamp dimmer), hard to find. 1 Used $12.00
311-0580-00 311-0580-00 Clarostat, 50K 4 Used $5.00

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Picture Tek P/N Function Qty. New
Used
Price
311-0608-00 311-0608-00 2K 1 New $10.00
New Factory Bagged 311-0609-00 2K, Round cermet Trimpots, factory bagged. 12 New $3.50
311-0642-00 311-0642-00 Clarostat, 20K 1 Used $5.00
311-0647-00 311-0647-00 Clarostat 5M, HV Insulated 1 Used $12.00
311-0647-00 311-0647-00 Clarostat 5M, HV Insulated 2 New $15.00
311-0662-00 311-0662-00 Clarostat 10K SORRY, SOLD New $10.00
311-0678-00 311-0678-00 CRL/Clarostat 50K/50K concentric 1 Used $18.00
311-0679-00 311-0679-00 Clarostat/CRL 10K/10K dual concentric. SORRY, SOLD New $15.00
311-0772-00 311-0772-00 Bourns 2K, 10 Turn, with extended shaft and mount. 1 Used $15.00
311-0874-00 311-0874-00 Bourns 10K SORRY, SOLD New $20.00
311-0838-00 311-0838-00 Bourns/Helipot/Spectrol 10K, 10 turn, Miniature 4 Used $18.00
311-0879-00 311-0879-00 Helipot 5K with coupler 1 Used $20.00
311-0880-01 311-0880-01 Clarostat 5K with switch SORRY, SOLD New $20.00
no pic 311-0881-00 CCTS min. RV6 style 20K pot with long PC leads Just 1 New $8.00
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Picture Tek P/N Function Qty. New
Used
Price
311-0888-01 311-0888-01 Clarostat 10K/10K with switch SORRY, SOLD New $5.00
311-0889-00 311-0889-00 Bourns/Helipot/Spectrol 5K, 10 turn, long shaft SORRY, SOLD New $25.00
311-0889-00 311-0889-00 Bourns/Helipot/Spectrol 5K, 10 turn, long shaft SORRY, SOLD Used $18.00
311-0905-00 311-0905-00 AB Type S, 100K, PC mounting 3 New $9.00
311-0946-00 311-0946-00 Spectrol/Bourns/Helipot 50K, 10 turn, mod 534-70 6 Used $15.00
311-0949-00 311-0949-00 Clarostat 2K RV6 style. 2 New $9.00
311-0959-00 311-0959-00 CRL 10K, with spring return adapter 1 Used $15.00
311-0964-00 311-0964-00 CRL 2.5K 1 Used $5.00
New Factory Bagged 311-1839-00
replaces
311-0973-00
AB Modpot, 5K with concentric push switch (beam-find upgrade part)
Used in R7704 (replaces R1037/S455 311-0973-00) and 7904 (replaces R339/S125)
2 New $18.00
311-0982-00 311-0982-00 Clarostat 10K with switch 2 New $15.00
311-0994-00 CRL 2.5K 1 Used $6.00
311-1030-00 311-1030-00 1K SORRY, SOLD New $5.00
311-1032-00 311-1032-00 Clarostat 2K Ohm RV6 style. 7 New $10.00
311-1055-00 311-1055-00 Clarostat 5K with concentric switch, cable attached. SORRY, SOLD Used $10.00
311-1057-00 5K Helipot 311-1057-00 Helipot
5K, 10 Turn, with 1/8 inch shaft, new in factory bags.
24 New $19.00
311-1058-00 311-1058-00 Bourns
Model 3500S-925-103 10K, 10 Turn, with 1/8 inch shaft.
5 New $19.00

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Picture Tek P/N Function Qty. New
Used
Price
311-1060-00 311-1060-00 Bourns 500 Ohm Trimpot (with shaft extension) 2 Used $5.00
311-1066-00 311-1066-00 2K/2K 4 New $12.00
311-1068-00 311-1068-00 AB 5K with microswitch, Type W 4 Used $10.00
311-1068-00 311-1068-00 AB 5K, Type W 1 Used $5.00
311-1099-00 311-1099-00 AB 100K Type W. 1 Used $5.00
311-1115-00 311-1115-00 Clarostat 5K/5K, with through hole for rear shaft. 5 Used $10.00
311-1116-00 311-1116-00 Clarostat 100 Ohm RV6 style. 3 New $10.00
311-1117-00 311-1117-00 10K/50K w/switch SORRY, SOLD Used $5.00
311-1125-00 311-1125-00 Custom Tek pot w/detnet, 260-Ohm 1 Used $20.00
311-1125-00 311-1127-00 Custom Tek 5K pot w/switch and set screw attachment shaft, factory packaged new spare. 1 New $15.00
311-1128-00 311-1128-00 20K/5K Concentric w/push switch 2 New $20.00
311-1131-00 311-1131-00 Clarostat 5K/5K Concentric, push switch 3 New $20.00
311-1131-00
311-1131-00
311-1131-00 5K/5K, POT ONLY 5 New $15.00
311-1144-00 311-1140-00 Clarostat 5K 1 New $5.00
311-1144-00 311-1144-00 Clarostat 5K with hollow shaft (for additional rear shaft) 3 New $12.00
311-1150-00 311-1150-00 Bourns 10K 1 New $15.00
311-1162-00 311-1162-00 Clarostat 10K/10K Dual Concentric SORRY, SOLD Used $12.00
311-1162-00  NEW 311-1162-00 Clarostat 10K/10K Dual Concentric SORRY, SOLD New $15.00
311-1173-00 311-1173-00 CTS 20K with switch, tab mounting. 3 New $7.00
311-1174-00 311-1174-00 Clarostat 5K, tab mounting. 1 New $7.00
311-1176-00 311-1176-00 Clarostat 100K/5M 4 New $20.00
311-1183-01 311-1183-01 Bourns 2K, 10 Turn 5 Used $18.00
311-1190-00 311-1190-00 AB Modpot 10K w/switch, concentric shafts SORRY, SOLD Used $15.00
311-1190-00 311-1190-00 AB Modpot 10K w/switch, concentric shafts SORRY, SOLD New $22.00
311-1191-00 311-1191-00 CRL 3x10K 1 Used $12.00

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Picture Tek P/N Function Qty. New
Used
Price
311-1192-00 311-1192-00 Clarostat 10K w/switch, concentric, very common field fault, hard to find! Fully tested. Just 1 USED $29.00
311-1196-00 311-1196-00 AB 1M Series 70 1 New $20.00
311-1207-00 311-1207-00 Clarostat 1K/5M, HV insulated 1 Used $15.00
311-1220-00 311-1220-00 20K 2 New $5.00
311-1248-00 311-1248-00 500 Ohm Bourns 3386X Trimpots, factory boxed. 3 New $3.00
New Factory Bagged 311-1265-00 Round cermet Trimpots, factory bagged. 8 New $3.50
82PAR500 311-1279-00 500 Ohm Beckman 82PAR500 Trimpots, factory boxed. 4 New $3.00
Pot/Switch 311-1297-00 10K, with CCW switch detent (rear section), single 1/8 in. shaft. Bourns 85C2AE20BA0333 3 New $27.00
311-1298-00 311-1298-00 10K, PC pins. 10 New $7.00

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Picture Tek P/N Function Qty. New
Used
Price
311-1301-00 311-1301-00 Clarostat 5K with long shaft 3 New $14.00
311-1307-00 311-1307-00 Bourns multi-turn trimpot, type 3299W, 500 Ohms, factory bagged. 9 New $7.00
311-1310-00 311-1310-00 AB 20K modpot w/pull switch SORRY, SOLD New $20.00
311-1310-00 311-1310-00 AB 20K modpot w/pull switch SORRY, SOLD Used $15.00
311-1311-00 311-1311-00 Bourns 81C1DE24BA0324 1k 12 New $16.00
311-1312-00 311-1312-00 AB 5M 1 Used $10.00
311-1313-00 311-1313-00 Bourns 2K 81C1DE24BA0329 21 New $12.00
311-1313-00 311-1313-00 AB 2K, series 70 6 Used $8.00
311-1316-00 AB 20K, Modpot 1 Used $8.00
311-1320-00 311-1320-00 Clarostat 5K concentric PB switch, w/cable SORRY, SOLD Used $15.00
311-1321-00 311-1321-00 20K Series 70 w/switch 2 Used $15.00
311-1322-00 311-1322-00 Clarostat 5K panel mtd. pot w/switch 4 Used $5.00
311-1324-00 311-1324-00 Helipot/Bourns 10K 10-turn 4 Used $15.00
same as above, but new 311-1324-00 Bourns 10K 10-turn, 3540S-544-103 1 New $20.00
311-1327-00 CTS 5k Ohm, late production 3 New $12.00
311-1331-00 311-1331-00 Clarostat 100K/20K concentric 1 New $20.00
311-1332-00 311-1332-00 Clarostat 5K 2 Used $5.00
311-1364-00 311-1364-00 Bourns 1K w/switch & detent 8 Used $20.00
311-1364-00 311-1364-00 AB 1K w/shaft 2 Used $20.00
311-1364-00 311-1364-00 Bourns 1K w/shaft and detent, 85C2FE20BA0045 2 New $29.00
311-1372-00 311-1372-00 Bourns 100K 81C1AE20BA0343 20 New $12.00
311-1372-00 311-1372-00 AB 100K series 70 9 Used $8.00
311-1373-00 311-1373-00 AB 5K series 70 11 Used $10.00
AB Modpot 311-1375-00 AB Modpot 10K, 1/8 in shaft, factory bagged. 10 New $13.00

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Picture Tek P/N Function Qty. New
Used
Price
311-1376-00 311-1376-00 Spectrol 10K Mod 140-416 1 Used $5.00
311-1393-00 311-1393-00 Clarostat 5M concentric SORRY, SOLD New $20.00
311-1397-00 311-1397-00 Bourns 5K/5K SORRY, SOLD New $20.00
311-1400-00 311-1400-00 Clarostat 5K 1 New $5.00
311-1401-00 AB 100K modpot w/switch 1 Used $14.00
311-1401-00 311-1401-00 AB 100K Modpot w/switch 2 New $22.00
311-1402-00 311-1402-00 AB 20K modpot 2 Used $12.00
311-1403-00 311-1403-00 AB 5K modpot w/switch 3 Used $15.00
New parts 311-1403-00 AB 5K modpot w/switch 2 New $20.00
311-1404-00 311-1404-00 AB modpot, 5K/5K concentric/switch, with cable attached. SORRY, SOLD Used $22.00
New parts 311-1404-00 AB modpot, 5K/5K concentric/switch, factory bagged SORRY, SOLD New $29.00
311-1406-00 311-1406-00 Clarostat, 20K with long shaft and long leads. 3 New $14.00
311-1410-00 311-1410-00 AB modpot, 25K/switch, with cable attached. 1 Used $12.00
311-1411-00 311-1411-00 Bourns/Clarostat 1K/10K concentric, modpot SORRY, SOLD Used $20.00
311-1421-00 311-1421-00 2.5k w/switch 1 Used $15.00
Pic to come 311-1428-00 20K AB Modpot. 1 New $16.00
New factory bagged 311-1430-00 Bourns, 82C2AK32BA0005, 5k/50K dual concentric SORRY, SOLD New $29.00
311-1440-00 311-1440-00 AB and Clarostat Modpot, dual 250K/30K pot 6 New $22.00
311-1452-00 311-1452-00 Clarostat concentric 100K and 6M with HV insulator on 6M section. Includes snap-on insulating cover for rear section. 2 Used $22.00
311-1458-00 311-1458-00 Helipot 50K 10-turn 1 Used $15.00
311-1464-00 311-1464-00 Helipot 10-turn 2k 1 Used $15.00
311-1465-01 311-1465-01 Bourns 1k/2.5k, 10 turn, push switch, concentric 1 Used $10.00
311-1477-00 311-1477-00 AB Modpot, 1 Megohm 6 New $15.00
311-1482-00 311-1482-00 5k Clarostat RV6 style, long shaft, w/cable. 6 Used $12.00
311-1483-00 Bourns 100K modpot style 1 Used $10.00
311-1484-00 311-1484-00 Bourns 82C1AE20BA0354, 2.5K modpot style 3 New $14.00

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Picture Tek P/N Function Qty. New
Used
Price
pic to come 311-1533-00 Bourns 81C2DE20BA0002, dual 5K/2.5M, 1/8 single shaft. Factory bagged. 5 New $19.00
311-1536-00 311-1536-00 Clarostat 5K 5 New $10.00
pic to come 311-1538-00 Bourns 81C2DE20BA0003 5K/2.5M SORRY, SOLD New $22.00
311-1538-00 311-1538-00 AB 5K/2.5M series 70 3 Used $15.00
311-1582-00 311-1582-00 Clarostat MODPOT, dual 10K with concentric shaft and both pushbutton and rotation switches. 3 New $26.00
311-1588-00 311-1588-00 AB Modpot, 5K, 3 Switch sections SORRY, SOLD New $20.00
311-1590-00 311-1590-00 Clarostat 10K w/cable 1 Used $5.00
311-1592-00 311-1592-00 AB modpot, 2.5K/1M concentric. 2 Used $15.00
311-1599-00 311-1599-00 AB modpot, 2.5K w/CW detent. 4 Used $15.00
311-1634-00 311-1634-00 Clarostat 10K RV6 style (plastic). 4 New $9.00
311-1638-01 311-1638-01 Clarostat 10K/2K Dual. 3 New $16.00
311-1647-00 311-1647-00 Clarostat 10K/Switch, concentric shafts. SORRY, SOLD New $15.00
311-1666-00 311-1666-00 AB Modpot, 20K with switch. 1 New $15.00
Long concentric shafts 311-1668-00 Bourns Modpot, 2x 10K with long concentric shafts. 1 New $29.00
Long concentric shafts 311-1670-00 Bourns Modpot, 10K/100K with long concentric shafts. 3 New $29.00
311-1701-00 311-1701-00 Bourns 50k w/coupler/shaft SORRY, SOLD Used $15.00
311-1704-00 311-1704-00 AB Modpot, dual 10K concentric with switch. 1 New $25.00
311-1799-00 311-1709-00 Bourns 20K, 10-turn. 1 Used $15.00
311-1714-01 311-1714-01 Clarostat 15K with extended shaft/switch. 5 New $11.00
311-1716-00 311-1716-00 Clarostat 1.5M 1 Used $6.00
311-1717-00 311-1717-00 Clarostat 2.5M 1 Used $6.00
311-1719-00 311-1719-00 Bourns 5k 1 Used $5.00
311-1719-00 311-1719-00 Bourns 5k 1 New $15.00
311-1724-00 311-1724-00 Clarostat 20K 1 New $10.00
311-1725-00 311-1725-00 Clarostat 10K 4 Used $5.00
311-1726-00 311-1726-00 Bourns/Clarostat 2K 4 Used $5.00
311-1727-00 311-1727-00 Bourns 20K 5 Used $5.00
311-1729-00 311-1729-00 Spectrol and Bourns 10K, 10-turn, high precision. 3 New $21.00
311-1739-00 311-1739-00 Cosmos, RV6NATSA505B, 5M, factory packed. 3 New $18.00

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Picture Tek P/N Function Qty. New
Used
Price
311-1755-01
311-1755-01
311-1755-01 Bourns 3610S-537-502, 5K, 10-turn, high precision, integral dial. Used in 1502 TDR. SORRY, SOLD Used $22.00
311-1765-00 311-1765-00 Clarostat 1K type B-10 6 New $10.00
311-1769-00 311-1769-00 Clarostat 2K/2M pot w/coupler/shaft 5 Used $10.00
311-1781-00 311-1781-00 Clarostat 10K/10K concentric SORRY, SOLD New $18.00
311-1781-00 311-1781-00 Clarostat 10K/10K concentric SORRY, SOLD Used $15.00
311-1782-0 311-1782-0 Clarostat 50K SORRY SOLD Used $5.00
311-1783-0 31-1783-0 Clarostat 5K SORRY, SOLD Used $5.00
311-1790 311-1790 Bourns 5M pot 4 Used $5.00
311-1795-01 311-1795-01 Cosmos RV16YD3C-982, dual concentric 10K Ohm, used in Sony/Tek units. SORRY, SOLD New $22.00
311-1797-00 311-1797-00 Cosmos RV16YG2-17R, dual 820K Ohm, has slip fine adjustment, used in Sony/Tek units, new factory bagged 4 New $29.00
311-1801-00 311-1801-00 AB modpot, 1K Ohm. SORRY, SOLD Used $12.00
311-1802-00 311-1802-00 AB modpot, dual concentric 500 Ohm. 3 Used $22.00
311-1802-00
311-1802-00
311-1802-00 Bourns 81C2DK29BA0023, dual concentric 500 Ohm. 3 New $25.00
311-1803-00 311-1803-00 AB modpot, 20K with pull switch and detent. 2 Used $18.00
311-1804-00 311-1804-00 AB Modpot, 500 ohm with switch, long shaft 1 New $22.00
311-1806-00 311-1806-00 Clarostat, 500 ohm w/concentric PB switch. 1 Used $16.00
311-1831-01 311-1831-01 Clarostat 2.5K/1K concentric 2 Used $15.00
311-1834-00 311-1834-00 AB Modpot, 50K SORRY, SOLD New $18.00
New Factory Bagged 311-1839-00 AB Modpot, 5K with concentric push switch (beam-find upgrade part)
Used in R7704 (replaces R1037/S455 311-0973-00) and 7904 (replaces R339/S125)
2 New $18.00
311-1883-00 311-1883-00 AB 100K modpot 1 Used $15.00
311-1888-00 311-1888-00 Bourns 20K 81C1DE20BA0363 20 New $12.00
311-1889-00 311-1889-00 Bourns 50K Multi-turn
3541H-458-503
5 New $22.00
311-1894-00 311-1894-00 Spectrol 5K 1 Used $5.00
311-1898-00 311-1898-00 AB Modpot, dual 2K/10K concentric with switch assys. 4 New $29.00
311-1933-00 311-1933-00 AB 5M 2215 autofocus modpot, HV insulated 4 Used $14.00
311-1946-00 311-1946-00 Clarostat, dual 10K concentric, with cables. SORRY, SOLD Used $15.00
311-1947-00 311-1947-00 Clarostat, 5K, PC mounting bracket. 2 Used $15.00
311-1948-00 311-1948-00 Clarostat, 1K with hollow shaft, with cable. 1 Used $10.00
factory bagged new part 311-1948-00 Clarostat, 1K with hollow shaft 1 New $15.00
311-1953-00 311-1953-00 Bourns 3540S-642-503, 10-turn 50K 5 New $24.00
311-1957-00 311-1957-00 Bourns 1K 1 New $10.00
311-1968-00 311-1968-00 AB Modpot, insulated. 5M, removed from new spares assembly. Just 1 New, removed $8.00
311-1969-00 311-1969-00 AB Modpot, insulated. Dual 5M, removed from new spares assembly. 6 New, removed $15.00

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Picture Tek P/N Function Qty. New
Used
Price
311-2001-00 311-2001-00 AB Modpot, 2.5K 4 New $15.00
311-2007-00 311-2007-00 Clarostat 20K w/switch/cable SORRY, SOLD Used $5.00
311-2010-00, c/w 260-1923-00 311-2010-00
c/w 260-1923-00
Bourns 500 ohm, 10 Turn, concentric with rear switch assy, 260-1923-00. SORRY, SOLD Used $25.00
311-2050-01 311-2050-01 Clarostat, plastic body RV6 style, 1K with short screwdriver shaft and hook leads. 3 New $12.00
311-2065-00 311-2065-00 5M Modpot 8 New $12.00
311-2078-00 311-2078-00 AB modpot, 10K with switch, concentric shafts. 1 New $22.00
311-2086-00 311-2086-00 Cosmos RV16YG2-17R, dual 20K Ohm, used in Sony/Tek units. 2 New $22.00
311-2104-00 311-2104-00 Clarostat 15K/w DPDT PB switch assy., concentric shafts 8 New $15.00
311-2117-00 311-2117-00 Clarostat 10K/2.5K 1 New $15.00
311-2118-00 311-2118-00 Clarostat HV Insulated 5M 7 New $15.00
311-2120-00 311-2120-00 Clarostat 20K min. panel mtd. pot SORRY, SOLD New $6.00
311-2123-00 311-2123-00 AB Modpot 5K panel mtd. pot w/PB switch, extended concentric shafts SORRY, SOLD New $20.00
no pic 311-2123-00 AB Modpot 5K panel mtd. pot w/PB switch, extended concentric shafts 2 Used $15.00
311-2124-00 AB type W, 20K 1 Used $8.00
311-2125-00 311-2125-00 Clarostat, 500 ohm and switch section with short collet shaft for attachment of an extension shaft. 10 New $24.00
311-2126-00 311-2126-00 AB Modpot 10K panel mtd. pot w/switch, PC pot terminals 1 New $19.00
311-2128-01 311-2128-01 Bourns 84J Dual 50K concentric shaft panel mtd. pot, with cable (not shown in pic.) 2 Used $23.00
311-2133-00 311-2133-00 Clarostat 500 Ohm, collet shaft attachment with setscrew. 7 New $15.00
1/8 flatted shaft 311-2135-00 Clarostat 50K Ohm, PC mounting. We have the plastic shaft coupler for this part. 1 Usd $12.00
Same as 311-2139-00 311-2138-00 Clarostat RV6 style 5M Ohm, HV insulated. 1 New $15.00
311-2139-00 311-2139-00 Clarostat RV6 style 2M Ohm, HV insulated. 1 New $15.00
311-2140-00 311-2140-00 Bourns 3540S 2K ten-turn panel mtd. pot 2 New $23.00
311-2146-00 311-2146-00 AB 50K type w, PC mounting. We have the plastic shaft coupler for this part 6 Used $12.00
311-2147-00 311-2147-00 AB 5K Ohm type w, PC mounting. We have the plastic shaft coupler for this part 12 Used $12.00
1/8 flatted shaft 311-2148-00 AB 20K Ohm type w, PC mounting. We have the plastic shaft coupler for this part 2 Used $12.00
1/8 flatted shaft 311-2149-00 AB 250 Ohm type w, PC mounting. We have the plastic shaft coupler for this part 3 Used $12.00

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Picture Tek P/N Function Qty. New
Used
Price
311-2151-00 311-2151-00 500 Ohm w/switch and shaft coupler SORRY, SOLD Used $6.00
311-2153-00 311-2153-00 AB type W 500 ohm min. panel mtd. pot 2 New $10.00
311-2173-00 311-2173-00 Bourns 92C 10K panel mtd. pot 6 New $10.00
311-2174-00 311-2174-00 5k Clarostat RV6 style, short shaft, w/cable. SORRY, SOLD Used $15.00
311-2177-00 Clarostat 388 style dual 10K panel mtd. min. pot with concentric shafts 1 Used $18.00
311-2177-04 311-2177-04 Clarostat 388 style dual 10K panel mtd. min. pot with concentric shafts 4 New $23.00
311-2178-00 311-2178-00 Clarostat 500 Ohm type W (new ones are BLUE) 5 New $11.00
311-2179-00 311-2179-00 Bourns 10K SORRY, SOLD New $5.00
311-2180-00 311-2180-00 Bourns 91Z 2K PCB mtd. pot 3 New $16.00
311-2180-00, CLICK for bigger PIC!
CLICK for bigger PIC!
311-2180-00 Bourns 91Z 2K PCB mtd. pot 5 Used $12.00
311-2181-00 311-2181-00 Bourns 91Z2D-Z45-EA0020, Dual 5K PCB mtd. pot, no stop or detent 2 New $29.00
311-2180-00, CLICK for bigger PIC!
CLICK for bigger PIC!
311-2181-00 Bourns 91Z2D-Z45-EA0020, Dual 5K PCB mtd. pot, no stop or detent 9 Used $22.00
311-2182-00 311-2182-00 Bourns 91Z Dual 5K PCB mtd. pot w/detent Just 1 Used $18.00
311-2183-00 311-2183-00 Bourns 91Z 5K PCB mtd. pot 1 New $15.00
311-2190-00 311-2190-00 Clarostat 5K 1 New $5.00
311-2217-00 311-2217-00 Clarostat 1K PCB mtd. min. pot w/switch SORRY, SOLD New $18.00
311-2218-00 311-2218-00 AB Modpot 10K panel mtd. pot w/switch, PC leads on pot SORRY, SOLD New $18.00
311-2219-01 311-2219-01 Clarostat 500 ohm dual PCB mtd. min. pot w/switch, special collet shaft coupler SORRY, SOLD New $33.00
311-2222-00, CLICK for bigger PIC!
CLICK for bigger PIC!
311-2222-00 Bourns 10K, vertical PC mounting, with spring return assembly, special collet shaft coupler SORRY, SOLD New $21.00
311-2292-00 311-2292-00 Clarostat 400 ohm plus dual switches, special collet shaft coupler 1 New $36.00
311-2303-00 311-2303-00 Clarostat 10K panel mtd. pot w/switch, concentric shafts 1 New $23.00
311-2304-00 311-2304-00 Clarostat 5K w/switch 13 New $15.00
311-2305-00 311-2305-00 Clarostat dual 10K panel mtd. pot with concentric shafts SORRY, SOLD New $24.00
Concentric Shafts 311-2305-00 Clarostat dual 10K panel mtd. pot with concentric shafts 1 Used $19.00
311-2316-00 311-2316-00 Bourns 91Z1A-ZZZ-EA0107 2K
We have the knob shaft adaptors for these in stock!
5 Used $9.00
311-2316-00 Bourns 91Z1A-ZZZ-EA0107 2K
We have the knob shaft adaptors for these in stock!
1 New $15.00
311-2317-00 311-2317-00 Bourns 91Z1A-ZZZ-EA0108 Dual 5K
We have the knob shaft adaptors for these in stock!
SORRY, SOLD Used $18.00
311-2318-00 311-2318-00 Bourns 91Z1A-ZZZ-EA0109 5K
We have the knob shaft adaptors for these in stock!
SORRY, SOLD New $18.00
311-2321-00 311-2321-00 Clarostat 20K PCB mtd. 3 1/2-turn pot 3 New $22.00
311-2343-00 311-2343-00 Bourns 91Z 5K PCB mtd. pot w/detent SORRY, SOLD New $16.00
311-2343-00, CLICK for bigger PIC!
CLICK for bigger PIC!
311-2343-00 Bourns 91Z 5K PCB mtd. pot w/detent 10 Used $14.00
311-2345-00 311-2345-00 Bourns 91Z 5K PCB mtd. pot 3 New $16.00
311-2345-00, CLICK for bigger PIC!
CLICK for bigger PIC!
311-2345-00 Bourns 91Z 5K PCB mtd. pot 25 Used $14.00
311-2409-00 311-2409-00 Clarostat 500 ohm with long shaft. 1 New $15.00
470RA Pot 470RA 470 ohm with clockwise detent 4 New $6.00

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Graphical logos and trademarks are the property of their respective owners, including Tektronix, Fluke, RCA, TI, GE, General Radio and Hewlett Packard, and are used here merely to unambiguously identify the products. Sphere Research IS NOT a factory authorized distributor for any of the product lines indicated.
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