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Tektronix Knobs and shaft couplers - 105, 331, 366, 376, 384 Series parts
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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 are original Tek items. All new parts are from ex-Tek factory or service parts stock, used parts are carefully salvaged from Tek equipment. Where possible, we clean and restore any used parts as much as possible, 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.
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Knob shaft diameters:
Full sized pots typically have 1/4 (0.250)" shafts and 3/8" busings, these are RV4, and larger ModPot styles.
They may also have 1/8" concentric shafts.

Miniature pots typically have 1/8 (0.125)" shafts, these are RV6, some Modpots and many miniature Clarostat
and AB type W and G pots. These may also have a concentric shaft, typically 0.078" in diameter.


Hard to find Tektronix Shaft-Couplers
Picture Tek P/N Description/Model Qty. New
Used
Price
Each
376-0051-00 376-0051-00
Flexible Shaft Coupler
Popular 1/8 inch flexible shaft coupler used in many Tek control designs. This allows mechanical mis-alignment to be absorbed by the flexible coupler, plus very secure shaft attachment with 4 setscrews. These are all used, good condition parts with all setscrews, a hard part to source! Just 3 Used $8.00 ea.


Tektronix Knobs
Picture Tek P/N Description/Model Qty. New
Used
Price
Each
331-0360-00 331-0360-00
400 Series
Satin finish 5 turn-truns-counting dial (Kilo Engineering 771S5), new in factory bags. Very hard to find. 1 New $22.00 ea.
New style gray 366-
Our ID: Gray 1
Small pointer knob, light gray color, black line, fits 1/8" shaft, .52" knob diameter. For later generation systems, not 400/2000/7000 scope products, very attractive. Have setscrews. 170 pcs. New $3.00 ea.
RED Var Knob 366-
Our ID: Red VAR 1
Small fine adjustment knob, red color, white VAR front legend, fits 0.078" shaft, 0.4" knob diameter. Typically for horizontal fine adjustment. We can also drill out this knob for other diameters, like 1/8" on request, add $1 per knob. Have setscrews. 35 pcs. New $3.00 ea.
RED variable knob 366-
Our ID: Red VAR 2
Small fine adjustment knob, red color with pull ridge, fits 0.078" shaft, 0.4" knob diameter, 0.45" diameter pull ring. For horizontal fine adjustment (pull for mag, etc.). We can also drill out this knob for other diameters, like 1/8" on request, add $1 per knob. NO Setscrews. 170 pcs. New $3.00 ea.
Tek Red VAR 5 366-
Our ID: Red VAR 5
Small fluted adjustment knob, red color, black cap and sides with screwdriver recess, fits 1/8" shaft, 3/8" knob diameter, 3/8" tall, Used in some 7A series vertical plug ins, as the variable v/div push-on-off adjustment knob (screwdriver recess is for preset adjustment function when pressed in further). Very hard to find. Have Setscrews. 3 pcs. Used $8.00 ea.
Tek Red VAR 6 366-
Our ID: Red VAR 6
Small fluted adjustment knob, red color, black cap and sides with smooth top, fits 1/8" shaft, 3/8" knob diameter, 3/8" tall, Used in some 7A series vertical plug ins, as the variable v/div push-on-off adjustment knob. Very hard to find. Have Setscrews. 12 pcs. Used $6.00 ea.
Tek Red VAR 7 366-
Our ID: Red VAR 7
Small skirted adjustment knob, red color, CAL and arrow on cap in white, fits 1/8" shaft, 0.5" knob diameter (at skirt), 9/16" tall. Used in variable adjustment locations. Hard to find. Have Setscrews. 10 pcs. Used $8.00 ea.
Tek Gray VAR 1 Knobs 366-
Our ID: Gray
VAR 1
Small skirted adjustment knob, light gray color, dark gray cap, black line/dot, fits 1/8" shaft, 0.5" knob diameter (at skirt), 9/16" tall. Used in many locations. Hard to find. Have Setscrews. SORRY, SOLD New $8.00 ea.
366-0125-00 366-0125-00
400 Series
Satin finish knurled aluminum anodized knob, used for early series plug-in locks. Very nice item, but hard to locate, new in factory bags. 4 New $8.00 ea.
366-0215-02 366-0215-02
400 Series
Small Gray Lever knob, widely used in earlier Tek portable products, very hard to find. New in factory bags and loose, improved late production version. Also works on HP levers. We have been searching for these for years, and just finally got some. SORRY, SOLD New $4.00 ea.
366-0636-00 366-0636-00
2200 Series
2200 series Variable knob, gray color, has snap in shaft, very hard to find. SORRY, SOLD New $8.00 ea.
105-0678-01 105-0678-01 Input AC/DC/GND selector knob, shaft assembly. Factory new parts. 12 pcs. New $9.00 ea.
366-0809-00 Knobs 366-0809-00
TDS Series
TDS series small Variable knob (has 0.162 inch bottom shoulder), 0.43 inch diameter, 4 flute style, press on. 500 New $4.00 ea.
366-0817-00 366-0817-00
TDS Series
TDS series medium selector knob (has 0.060 inch bottom shoulder), 0.649 inch diameter, 6 flute style, press on. Hard plastic. 100 New $5.00 ea.
366-0820-00 366-0820-00
TDS Series
TDS series small Variable knob, 0.43 inch diameter, 4 flute style, press on. 100 pcs. New $4.00 ea.
366-0821-00
366-0821-00
366-0821-00
TDS Series
TDS series small variable knob (has 0.165 inch bottom shoulder), 0.43 inch diameter, 4 flute style, press on. SORRY, SOLD New $4.00 ea.
366-0851-00 366-0851-00
TDS Series
TDS/TLA/DPO/DSA series small variable/selector knob -soft feel- style, 0.47 inch diameter, 6 flute style, press on. (1/4 in. d-shaft) 200 New $4.00 ea.
366-0855-00 366-0855-00
TDS Series
TDS/TLA/DPO/DSA series large variable/selector knob -soft feel- style, 0.92 / 15/16 inch diameter, 14 flute style, press on. (1/4 in. d-shaft) 200 New $6.00 ea.
Tek TDS 15/16 inch Diameter 366-
TDS Series
TDS series Selector knob, 0.92 / 15/16 inch diameter, 14 flute style, press on (1/4 in. D-shaft). Like -0855, but hard gray plastic. 20 pcs. New $6.00 ea.
TDS knob 366-
TDS Series
TDS series large Selector/Tuning knob, 1 5/8 inch diameter, press on. 3 pcs. New $10.00 ea.
366-1031-02 366-1031-02
465
Variable knob (red, setscrew), vertical. SORRY, SOLD New $4.00 ea.
366-1031-03
Knob, all 3 views, 1/8 inch shaft
366-1031-03
465, 475, SC50X, others
FINALLY BACK IN STOCK, the very popular 1031-03 knob!
Variable knob (red, setscrew), vertical with cal position marker. This is the last revision of the knob, and has all the trim markings. Early ones say only VAR, but don't indicate how to set the control for the calibrated position. These get broken off all the time in shipping on the end of the vertical attenuator, we finally got more NEW stock.
65 New $6.00 ea.
366-1219-02 366-1219-02 Sweep selector outer knob housing. New parts, bulk packed.
DEL'D SWEEP (PULL)
LOCK KNOBS FOR A
2 New $8.00 ea.
Sweep selector knob 366-
Our ID:
SWEEP1
Sweep selector complete knob assembly, with pins and center core, 0.13 in dia. shaft, 0.90 in widest diameter. New parts, bulk packed.
DEL'D SWEEP (PULL)
LOCK KNOBS FOR A
15 New $15.00 ea.
Tek DLY'D SWEEP PULL 366-
Our ID:
SWEEP2
Sweep selector complete knob assembly, with pins and center core, 0.13 in dia. shaft, 0.90 in widest diameter. New parts, bulk packed.
DEL'D SWEEP
PULL
3 New $15.00 ea.
Tek Delayed Sweep Knob 366-
Our ID:
SWEEP3
Sweep selector complete knob assembly, with pins and center core, smaller size, 0.20 dia. shaft, 0.87 in widest diameter. New parts, bulk packed.
DEL'D SWEEP
PULL
3 New $15.00 ea.
Tek A Sweep 366-
Our ID:
SWEEP4
Sweep selector complete knob assembly, with rear partiual relief, smaller size, 0.128 dia. shaft, 0.66 in widest diameter. New parts, bulk packed.
A SWEEP
2 New $15.00 ea.


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Picture Tek P/N Description/Model Qty. New
Used
Price
Each
366-1257-23 Knob 366-1257-23
5BXX/4XX
LINE light gray pushbutton, used in 5B series plug ins, and 4XX series sweep sections. 10 New $3.00 ea.
366-1257-27 Knob 366-1257-27
5XXX/4XX
AC COUPLING light gray pushbutton, used in 5A/5B series plug ins, and 4XX series sweep sections. 10 New $3.00 ea.
366-1257-84 Knob 366-1257-84
5XXX/4XX
ERASE light gray pushbutton, used in Tek storage scopes 5 New $3.00 ea.
Channel Buttons 366-1257-XX
5XXX/4XX
Channel Buttons light gray pushbutton, used in Tek 5A/5B series plug ins, and 4XX series scopes. CH1/Dual and CH2/Trace are SOLD. as shown Used any knob
$2.00 ea.
Coupling Buttons 366-1257-XX
5XXX/4XX
Coupling Buttons light gray pushbutton, used in Tek 5A/5B series plug ins, and 4XX series scopes. as shown Used any knob
$2.00 ea.
Misc. Buttons 366-1257-XX
5XXX/4XX
Misc. Buttons light and dark gray pushbutton, used in Tek 5A/5B series plug ins, and 4XX series scopes. ADD buttons are SOLD. as shown Used any knob
$2.00 ea.
Sweep Buttons 366-1257-XX
5XXX/4XX
Sweep Buttons light gray pushbutton, used in Tek 5A/5B series plug ins, and 4XX series scopes. as shown Used any knob
$2.00 ea.
Trigger Buttons 366-1257-XX
5XXX/4XX
Trigger Buttons light gray pushbutton, used in Tek 5A/5B series plug ins, and 4XX series scopes. as shown Used any knob
$2.00 ea.
Trigger (2) Buttons 366-1257-XX
5XXX/4XX
Trigger (2) Buttons light gray pushbutton, used in Tek 5A/5B series plug ins, and 4XX series scopes. as shown Used any knob
$2.00 ea.
366-1281-02 366-1281-02 Sweep Selector knob, 0.250 in dia. hole, 1.12 in dia. clear printed skirt, marked .2u(s) to .5(s), CLOSE UP HERE. 8 New $15.00 ea.
366-1294-00 Knob 366-1294-00
5BXX
Illuminated skirt Horizontal knob for 5B series plug ins, goes .1u to .5V, for plug ins with fast timebase and signal input capability. SORRY, SOLD New $10.00 ea.
366-1295-00 Knob 366-1295-00
5BXX
Illuminated skirt Horizontal knob for 5B series plug ins, goes 50u to 50, for plug ins with slow timebase. 3 New $10.00 ea.
366-1299-00
7AXX
Mode/range knob, 0.190 in dia. hole, 0.700 in dia. round, fits many 7Axx series scope plug ins as the vertical range selector. SORRY, SOLD New $10.00 ea.
Tek slector Knob 366-
Large Mode/range knob, 1 inch diameter (at flutes), with through hole. Fits many selector positions. 5 New $12.00 ea.
366-1391-00 366-1391-00 Miniature gray knob (used on concentric pots), approx. 0.3 in diameter, 0.078/0.08 in shaft. Has white line, fluted sides. New, bulk packed. 7 New $8.00 ea.
366-1402-18 Knob 366-1402-18
5XXX/4XX
STORE light gray pushbutton switch, used in Tek storage scopes 1 New $5.00 ea.
CLICK for bigger PIC, 366-1426-00
CLICK for bigger PIC!
366-1426-00
465
Vertical knob (gray, setscrew) with range skirt.
Range 5mV to 50V on skirt, gap in skirt. New factory bagged parts. These have been wickedly hard for us to source.
SORRY, SOLD New $29.00 ea.
366-1646-01 366-1646-01 Vertical knob (gray with shaft extension) with clear range skirt.
Range 2mV to 100V on skirt, gap in skirt. New factory bagged parts.
SORRY, SOLD New $29.00 ea.
366-1691-00 366-1691-00 Rectangular gray extension pushbutton. 1.2 in over-all length, 0.096x0.20 end, fits standard Tek pushbuttons. 80 New $4.00 ea.
CLICK for bigger PIC, 366-1722-01
CLICK for bigger PIC!

CLICK for another view!
366-1722-01
Vertical knob (gray, keyed shaft) w/shaft extension.
Range 5mV to 50V on skirt, gap in skirt, 2.62 inches total over-all length.
1 New $29.00 ea.
366-1722-01 Used 366-1722-01
Vertical knob (gray, keyed shaft) w/shaft extension.
Range 5mV to 50V on skirt, gap in skirt, 2.62 inches total over-all length. Excellent condition.
2 Used $22.00 ea.
366-1767-00 366-1767-00 Indicating (yellow) circular pushbutton knob, used on some Tek power switches, bulk factory packed. SORRY, SOLD New $11.00 ea.
CLICK for bigger PIC!
CLICK for bigger PIC!
2205 Vertical
Vertical knob (gray, press-on attachment)
Range 5mV to 20V on skirt, gap in skirt. Very good condition.
Just 2 Used $20.00 ea.
2205 Horizontal 2205 Horizontal
Horizontal knob (gray, press-on attachment)
2 lines on skirt. Very good condition.
Just 1 Used $20.00 ea.
Tek Vertical 22XX Series Vertical
Vertical knob (gray, press-on attachment)
Range 5mV to 5V on skirt, gap in skirt. Brand new.
SORRY, SOLD New $20.00 ea.
similar to -1722 above, but smaller 366-1733-02
Vertical knob (gray, keyed shaft) w/shaft extension.
Range 1mV to .2K on skirt, gap in skirt. For SC500 series scope modules.
Last 1 New $30.00 ea.
CLICK for bigger PIC!
CLICK for bigger PIC!
366-2049-03
22XX, 24XX
Push on accessory control function knob (beige/gray, push-on), fits many 22XX and 24XX series scopes where the pots have a plastic shaft coupler. Very hard for us to source now! Works for both plain and lined knob positions. 5 New $15.00 ea.
366-2089-00
366-2089-00
366-2089-00
24XX
Push on accessory control function knob with extension shaft 1.32 inches long (beige/gray, push-on), fits many 24XX series scopes where the pots have a keyed plastic shaft. Very hard for us to source, just arrived. These are all excellent condition pulls. Have one additional with no line on the front, do not know the real Tek number. Last 3 Used $10.00 ea.
366-
Variable knob (gray, setscrew), 0.093 in. dia hole, fits many later 2XXX series. SORRY, SOLD New $4.00 ea.
2205 Cal 2205 Cal
Vertical/Horizontal fine adjustment knob (gray, set-screw attachment), marked CAL and arrow.. Very good condition. Just 1 Used $6.00 ea.
366-
Variable knob (red/yellow, setscrew), 0.125 in. dia hole, fits timebase control with pull for 10X function. Yellow function ring when pulled out. 3 New $4.00 ea.
CLICK for bigger PIC!
CLICK for bigger PIC!
366-
SC50X
Timebase knob (gray, setscrew), 0.250 in. dia. hole, used on Tek SC50X series. Have 5 New $10.00 ea.
CLICK for bigger PIC!
CLICK for bigger PIC!

CLICK for another VIEW!
366-2148-01
Vertical knob (gray, keyed shaft) w/shaft extension.
Range 2mV to 50V on skirt, no gaps.
SORRY, SOLD New $20.00 ea.
384-1371-05 384-1371-05
Gray knob with integral shaft, has D-mating slot for pot end, 2.40 inches over-all length. New in factory bags. 10 New $12.00 ea.
384-1371-06, CLICK for Bigger PIC!
CLICK for bigger PIC!
384-1371-06
Gray knob with integral shaft, has D-mating slot for pot end, 5.54 inches over-all length. New in factory bags. 10 New $12.00 ea.
465M Knobs/Shafts, CLICK for bigger PIC!
CLICK for bigger PIC!
465M Knob/Shafts 465M Knobs
These are the extension shaft style knobs used in the 465M. The entension shaft locks onto the pot keyed shaft, the power switch link attaches with a clip.
02ea. 4 5/16" Gray knob/shaft
15ea. 4 1/2" Gray knob/shaft
03ea. 2 1/8" Gray knob/shaft
01ea. 12 3/16" Gray knob/shaft
01ea. 11 15/16" Gray knob/shaft
03ea. 11" Power switch knob/link.
Varies Used Any 465M Item
$6.00 ea.
3/16 inch diameter, coupler is 5/8 inch long Knob Coupler
Plastic knob coupler, fits on D shaped pot shaft, 3/16 inch diameter, coupler is 5/8 inch long. Allows snap on knobs like 366-2049-01 to fit. SORRY, SOLD Used $5.00 ea.
1/8 inch diameter, coupler is 5/8 inch long Knob Coupler
Plastic knob coupler, fits on D shaped pot shaft, 1/8 inch diameter, coupler is 5/8 inch long. Allows snap on knobs like 366-2049-01 to fit. SORRY, SOLD Used $5.00 ea.
3/16 inch diameter, coupler is 7/8 inch long Knob Coupler
Plastic knob coupler, fits on D shaped pot shaft, 3/16 inch diameter, coupler is 7/8 inch long. Allows snap on knobs like 366-2049-01 to fit. SORRY, SOLD Used $5.00 ea.
IMPORTANT !
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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