Miniature relays: Difference between revisions
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(Created page with "In the 1970s, Tek made miniature relays in-house that were used in some 7000-series plugins, among others. These relays have a tendency to fail and have become very rare. ...") |
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Interestingly, Tek appear to have manufactured replacements based on commercial TO-5 relays on small carrier boards | Interestingly, Tek appear to have manufactured replacements based on commercial TO-5 relays on small carrier boards | ||
Some of these relays have symmetrical socket layouts so that they can be installed in both possible 180° rotated positions. | |||
Possible repair strategies include "micro-surgery" (Ref.1) or installing modern miniature relays on top of the cut-off base. | Possible repair strategies include "micro-surgery" (Ref.1) or installing modern miniature relays on top of the cut-off base. | ||
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! Replacement | ! Replacement | ||
|- | |- | ||
| 148-0034-00 || DPDT || 15 V 600 Ω || [[7A13]]: K47,K48,K480,K490 || | | 148-0034-00 || DPDT || 15 V 600 Ω || [[7A13]]: K47,K48,K480,K490 || Omron G6N, G6S | ||
|- | |- | ||
| 148-0034-00 || | | 148-0034-00 || DPDT || 15 V 600 Ω || [[7A11]]: K401,K403,K405,K407,K411,K413,K415,K417,K431 || AXICOM V23079-D2003-B301 (Ref. 2) | ||
|- | |- | ||
| 148-0034-03 || | | 148-0034-03 || DPDT || 15 V 600 Ω || [[7A11]] B100000+: K401,K403,K405,K407,K411,K413,K415,K417,K431 || AXICOM V23079-D2003-B301 (Ref. 2) | ||
|- | |- | ||
| 148-0035-00 || | | 148-0035-00 || || 15 V 600 Ω || 7A13: K60,K61 || | ||
|- | |- | ||
| 148-0050-00 || | | 148-0050-00 || SPST || 12 V || 7A13: K10,K30 || | ||
|- | |- | ||
| 148-0054-00 || SPDT+SPST || 15 V || 7A13: K7,K27 || | | 148-0054-00 || SPDT+SPST || 15 V || 7A13: K7,K27 || | ||
|- | |- | ||
| 148-0055-00 || | | 148-0055-00 || SPDT+SPST || 15 V || 7A13: K6,K26 || | ||
|- | |- | ||
| 148-0058-00 || || 4 V 130 Ω || 7A13 Probe: K55,K59 || | | 148-0058-00 || || 4 V 130 Ω || 7A13 Probe: K55,K59 || | ||
|- | |- | ||
| 148-0107-04 || || || TO5 replacement for 7A13: K6,K26 || | | 148-0107-04 || || || TO5 replacement for 148-0055-00 (7A13: K6,K26) || | ||
|- | |- | ||
|} | |} | ||
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# [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_amplifier/amplifier_7A11.htm 7A11 repair report at amplifier.cd] | # [http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_amplifier/amplifier_7A11.htm 7A11 repair report at amplifier.cd] | ||
# [http://ik1zyw.blogspot.com/2007/09/tektronix-7a13-broken-relays.html Tek 7A13 broken relays @ IK1ZYW Labs] | # [http://ik1zyw.blogspot.com/2007/09/tektronix-7a13-broken-relays.html Tek 7A13 broken relays @ IK1ZYW Labs] | ||
==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
tek-148-0107-4.jpg | | 148-0034-03.jpg | 148-0034-03 in [[7A11]] | ||
148-0034-03-bot.jpg | 148-0034-03 bottom view | |||
148-0035-00.jpg | 148-0035-00 in [[7A13]] | |||
tek-148-0107-4.jpg | 148-0107-04 TO-5 replacement relay | |||
</gallery> | </gallery> | ||
[[Category:Repair issues]] | [[Category:Repair issues]] | ||
Revision as of 09:29, 26 March 2017
In the 1970s, Tek made miniature relays in-house that were used in some 7000-series plugins, among others. These relays have a tendency to fail and have become very rare.
Interestingly, Tek appear to have manufactured replacements based on commercial TO-5 relays on small carrier boards
Some of these relays have symmetrical socket layouts so that they can be installed in both possible 180° rotated positions.
Possible repair strategies include "micro-surgery" (Ref.1) or installing modern miniature relays on top of the cut-off base.
| Tek P/N | Contacts | Coil | Used in | Replacement |
|---|---|---|---|---|
| 148-0034-00 | DPDT | 15 V 600 Ω | 7A13: K47,K48,K480,K490 | Omron G6N, G6S |
| 148-0034-00 | DPDT | 15 V 600 Ω | 7A11: K401,K403,K405,K407,K411,K413,K415,K417,K431 | AXICOM V23079-D2003-B301 (Ref. 2) |
| 148-0034-03 | DPDT | 15 V 600 Ω | 7A11 B100000+: K401,K403,K405,K407,K411,K413,K415,K417,K431 | AXICOM V23079-D2003-B301 (Ref. 2) |
| 148-0035-00 | 15 V 600 Ω | 7A13: K60,K61 | ||
| 148-0050-00 | SPST | 12 V | 7A13: K10,K30 | |
| 148-0054-00 | SPDT+SPST | 15 V | 7A13: K7,K27 | |
| 148-0055-00 | SPDT+SPST | 15 V | 7A13: K6,K26 | |
| 148-0058-00 | 4 V 130 Ω | 7A13 Probe: K55,K59 | ||
| 148-0107-04 | TO5 replacement for 148-0055-00 (7A13: K6,K26) |
to be expanded
References
- Repairing 7A13 relays @ PA4TIM (how to take relays apart, inside photos)
- 7A11 repair report at amplifier.cd
- Tek 7A13 broken relays @ IK1ZYW Labs
