Miniature relays: Difference between revisions
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Some of these relays have symmetrical socket layouts so that they can be installed in both possible 180° rotated positions. | 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 gold-contact relays on top of the cut-off base. | ||
{| class="wikitable" | {| class="wikitable" | ||
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! Replacement | ! Replacement | ||
|- | |- | ||
| 148-0034-00 || DPDT || 15 V 600 Ω || [[7A11]]: K401,K403,K405,K407,K411,K413,K415,K417,K431<br />[[7A13]]: K47,K48,K480,K490<br />[[7A14]]: K50,K62,K330 || AXICOM V23079-D2003-B301 (Ref. 2)<br />Omron G6N, G6S | | 148-0034-00 || DPDT || 15 V 600 Ω || [[7A11]]: K401,K403,K405,K407,K411,K413,K415,K417,K431<br />[[7A13]]: K47,K48,K480,K490<br />[[7A14]]: K50,K62,K330 || AXICOM V23079-D2003-B301 (Ref. 2)<br />[[Media:Omron G6 relay.jpg|Omron G6N, G6S]] | ||
|- | |- | ||
| 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) | | 148-0034-03 || DPDT || 15 V 600 Ω || [[7A11]] B100000+: K401,K403,K405,K407,K411,K413,K415,K417,K431 || AXICOM V23079-D2003-B301 (Ref. 2) | ||
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Tek 148-0055-00 4.jpg|148-0055-00 | Tek 148-0055-00 4.jpg|148-0055-00 | ||
tek-148-0107-4.jpg | 148-0107-04 TO-5 replacement relay | tek-148-0107-4.jpg | 148-0107-04 TO-5 replacement relay | ||
Omron G6 relay.jpg | replacement Omron G6 relay soldered onto Tek socket | |||
7a11-probe-interior-back.jpg | Two 148-0058-00 in the [[7A11]] probe | 7a11-probe-interior-back.jpg | Two 148-0058-00 in the [[7A11]] probe | ||
</gallery> | </gallery> | ||
Revision as of 23:54, 11 May 2018
In the 1970s, Tek produced their own miniature relays in-house that were used in some 7000-series plug-ins such as the 7A11, 7A12, 7A13, 7A14, and other equipment. These relays have a tendency to fail and have become very rare.
Interestingly, Tek appear to have manufactured replacements based on commercial relays in TO-5 metal can cases soldered to small carrier boards with pins matching the Tek sockets.
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 gold-contact relays on top of the cut-off base.
| Tek P/N | Contacts | Coil | Used in | Replacement |
|---|---|---|---|---|
| 148-0034-00 | DPDT | 15 V 600 Ω | 7A11: K401,K403,K405,K407,K411,K413,K415,K417,K431 7A13: K47,K48,K480,K490 7A14: K50,K62,K330 |
AXICOM V23079-D2003-B301 (Ref. 2) Omron G6N, G6S |
| 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 | SPDT | 15 V 600 Ω | 7A13: K60,K61 7A14: K51,K52,K53,K54,K155,K160,K180,K235,K280 |
|
| 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 | 7A11 Probe: K55,K59 | ||
| 148-0076-00 | SPST (reed) | 7L12: K1470 | ||
| 148-0087-00 | SPDT | 90 mW | 7L12: K300,K353,K356,K1200 | |
| 148-0088-00 | DPDT | 120 mW | 7L12: K281,K354,K355,K357,K1130,K1400,K1450 | |
| 148-0107-03 | SPDT | TO5 replacement | ||
| 148-0107-04 | DPDT | TO5 replacement for 148-0055-00 (7A13: K6,K26) | ||
| 108-0599-00 | SPST (reed) | 7T11: A3K31,A3K32,A3K70,A3K71,A3K80 |
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
Pictures
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148-0034-03 in 7A11
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148-0034-03 bottom view
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148-0034-00
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148-0034-00
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148-0034-xx connections
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148-0035-00 in 7A13
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148-0035-00
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148-0035-00
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148-0035-00
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148-0035-00
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148-0035-00 connections
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148-0050-00
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148-0050-00
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148-0050-00
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148-0050-00
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148-0055-00
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148-0055-00
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148-0055-00
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148-0055-00
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148-0107-04 TO-5 replacement relay
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replacement Omron G6 relay soldered onto Tek socket
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Two 148-0058-00 in the 7A11 probe
Other custom relays in Tek equipment
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108-0599-00 reed relays in 7T11
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Bi-stable relay yoke actuating contacts in 11A33 front-end (148-0204-00)
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148-0128-00 relay yoke
- 7A29 input protection relay