Quick Search: Hit CONTROL-F to search THIS page directly with your browser! |
![]() |
Small Industry Standard CRT's 1EP1, 2BP1, 3RP1A, DG7-32, etc. | ![]() |
Welcome To Sphere Research's Canadian Test Equipment & Parts Site! | ||||
![]() Click REFRESH on your browser if pages seem unchanged ![]() Everything from Quotes and SciFi to Ethics & Business. ![]() ![]() ![]() | ![]() Please Note: All Prices are in US$ |
Sphere Research Corporation 3394 Sunnyside Rd. West Kelowna, BC, Canada V1Z 2V4 Phone: +1 (250) 769-1834 A great source for test equipment, repairs, calibrations, useful metrology information, and of course, SLIDE RULES! Just ![]() |
![]() ![]() Parts by the Foot! |
Now OPEN, our ![]() Literally millions of parts available at great prices! |
![]() |
![]() ![]() |
I'm in a HURRY! Show me all the: | ![]() |
![]() |
![]() |
![]() |
Small Industry Standard CRTs- Cathode Ray Tubes![]() ![]() ![]() We have some new ![]() ![]() ![]() ![]()
You can order anything here just by picking up the phone, and calling (250) 769-1834 during normal office hours, 8:30AM to 4:30PM PST. OR, Email your order to Susan ![]() ![]() ![]() ![]() ![]() ![]() ![]()
|
E-mail us | Want something? Click here to e-mail us! We accept Visa / MC for fast order processing. |
![]() on-line DATA! | ![]() |
MANUFACTURER/ NOTES | |||
![]() CRT 1EP1 ![]() |
![]() ![]() ![]() 1" Electrostatic CRT. FLAT FACE, extremely rare tube, very highly requested! Full dynamic test (see tube in action to the left), excellent condition, focus is actually much sharper than shown, the image blooms in our digital camera. New, RCA factory-packed. Takes an 11 pin un-keyed socket, which we have. |
![]() $120 |
|
MANUFACTURER/ NOTES | |||
![]() CLICK for bigger PIC! CRT 2BP1 ![]() |
![]() ![]() 2" Electrostatic CRT. New, factory boxed (one box has no end flaps), Dynamically tested good, LOOKS GOOD, no burns or marks, very bright, excellent display quality. We have sockets for these. 12 pin (12BA) socket. Note, this can sub for the 50HB1, used in many high end stereo units, but it is 1 inch longer, and has more deflection gain. If you can make it fit and adjust it, it is plug and play. |
![]() $95 |
|
MANUFACTURER/ NOTES | |||
![]() CRT 2BP1 ![]() |
![]() ![]() 2" Electrostatic CRT. Used, Dynamically tested good, LOOKS GOOD, no burns or marks, very bright. Some are JAN tubes, all are excellent display quality. We have sockets for these. 12 pin (12BA) socket. Note, this can sub for the 50HB1, used in many high end stereo units, but it is 1 inch longer, and has more deflection gain. If you can make it fit and adjust it, it is plug and play. |
$69 |
|
MANUFACTURER/ NOTES | |||
![]() CRT 3BP1 3BP1A |
![]() 3" Electrostatic CRT. Filament tested good, LOOKS GOOD, full dynamic test. Some are NEW, but poor boxes had to be discarded. 14 pin diheptal base, we have sockets for these. Various makers, Norelco/Philips, GE, RCA, etc. all work great, excellent clock tubes. |
||
MANUFACTURER/ NOTES | |||
![]() 3RP1 ![]() |
![]() 3" Electrostatic CRT. USED, fully tested, very popular tube, semi-flat face. 12 pin base, we have B12A sockets for these. Used in McIntosh MPI-4, Cushman service monitors, and many others. Same as 3RP1A, but face is not perfectly flat, otherwise they are fully interchangeable. |
$89 |
|
MANUFACTURER/ NOTES | |||
![]() CLICK for bigger PIC! CRT 3RP1A 3RP1-A ![]() |
BACK AGAIN!![]() ![]() ![]() 3" wide flat face electrostatic CRT. This is an excellent tube, with high brightness and crisp focus. Dynamic testing shows excellent performance, and previous customers of these tubes have been very happy with the quality. New, factory boxed, every tube is individually, dynamically tested for intensity and focus. 12 pin base (B12A), we have sockets for these (New Ediswan $15 ea.), GREAT for CRT clocks, as shown. Used in McIntosh MPI-4, Heathkit monitors, Cushman service monitors, and many others. We found one LAST BATCH of these, no more are available when these few are gone. |
Have 8 |
![]() $95 |
MANUFACTURER/ NOTES | |||
3RP1A 3RP1-A |
![]() 3" wide flat face electrostatic CRT. This is an excellent tube, with high brightness and crisp focus. Used, every tube is individually, dynamically tested for intensity and focus. 12 pin base (B12A), we have sockets for these (New Ediswan $15 ea.), GREAT for CRT clocks, as shown. Used in McIntosh MPI-4, Cushman service monitors, and many others. These are getting very hard to find in good used condition. |
SORRY, SOLD |
$75 |
MANUFACTURER/ NOTES | |||
![]() CRT 3RP7A |
![]() ![]() 3" wide flat face electrostatic CRT with slow P7 blue phosphor, wickedly hard to find. NEW, excellent condition factory boxed tube, fully tested, and BRIGHT. 12 pin base, we have sockets for these, GREAT for CRT clocks, but the slow phosphor also works well for any slow sweep application, like spectrum analyzers. |
![]() SORRY, SOLD |
E-mail us | Want something? Click here to e-mail us! We accept Visa / MC for fast order processing. |
MANUFACTURER/ NOTES | |||
![]() ![]() 5 inch , Flat Face, P1 CRT 5DEP1/31 (F) |
![]() ![]() 5" Electrostatic CRT. Very common low frequency scope tube, short envelope, flat face. Used, Dynamically tested good, LOOKS GREAT, lots of intensity. Perfect for scope clocks, very bright and crisp large image, even at low voltage, high deflection sensitivity. |
$129 |
E-mail us | Want something? Click here to e-mail us! We accept Visa / MC for fast order processing. |
MANUFACTURER/ NOTES | |||
D7-222GY |
![]() ![]() 1x2.5" Rectangular Electrostatic CRT, flat face, very short tube. Used, Filament tested good, LOOKS VERY GOOD. Has a shield. |
$95 |
|
MANUFACTURER/ NOTES | |||
![]() CLICK for bigger PIC! ![]() CLICK for bigger PIC! CRT DG7-12C |
![]() ![]() ![]() ![]() 3" flat face Round Electrostatic CRT, NEW fully tested, looks good and very bright. General purpose scope and display tube, extremely short tube, only 7 inches long total. Very similar to DG7-52/3BNP1, data is HERE. Works great in the Forbes CRT clock circuit, but slow to initially warm up. Fits standard 14 pin socket wiring, same as 3BP1. Have one additional used tube, slight trace burn, but still very bright, $60. ![]() |
![]() $95 |
|
MANUFACTURER/ NOTES | |||
![]() ![]() CRT S159P1 3RP1A w/shield |
![]() ![]() ![]() ![]() 3" wide flat face electrostatic CRT. This is a 3RP1A with added mu-metal magnetic sheld (easily removed if not wanted, taped in place), an exact replacement for most 3RP1A applications. Dynamic testing shows excellent performance. New, factory boxed. |
![]() $129 |
E-mail us | Want something? Click here to e-mail us! We accept Visa / MC for fast order processing. |
GENERAL TUBE DATA that may interest you:![]() CLICK HERE for General electrostatic CRT tube data (from 1955 ARRL Handbook) (browser BACK to return) |
Matching ARRL Data Tube Base Diagrams! ![]() For CRT Base Diagrams (browser BACK to return) ![]() For more CRT Base Diagrams (browser BACK to return) |
![]() |
Duncan Amp's tube info search site, includes many common and uncommon CRT's, including european types! |
![]() CLICK to Visit! |
![]() Have a peek at this fascinating project that produces a digital clock on a CRT, instead of nixie tubes. A great and incredibly creative project from ![]() |
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. | ![]()
| ||
![]() | You are visitor number
![]() ![]() Site Design & contents copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2013, 2014, 2016, 2017, 2022 by Walter Shawlee 2 & the ad hoc Godzilla Graphics Group. All rights reserved.
|