Miniature relays: Difference between revisions

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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]], and other equipment. These relays have a tendency to fail and have become very rare.
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 working ones have become very rare. Some of these relays have symmetrical socket layouts so that they can be installed in both possible 180° rotated positions.


Interestingly, Tek appear to have manufactured replacements based on commercial TO-5 relays on small carrier boards
Interestingly, Tek appears 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), installing modern miniature gold-contact relays on top of the cut-off base or, if energizing the coil mechanically operates the relay, using a signal source to cycle the relay for a period of time.


Possible repair strategies include "micro-surgery" (Ref.1) or installing modern miniature relays on top of the cut-off base.
Relays of the 148-0034-00 family have contacts with 100mil (2.54mm) pitch; the housings are 16.0 x  8.3 x 15 mm (width x depths x height).  


{| class="wikitable"
{| class="wikitable"
|-
|-
! Tek P/N
! width="80px"|Tek P/N
! Contacts
! Contacts
! Coil
! Coil
! Used in
! Used in
! Replacement
! Replacement
! Note
|-
|-
| 148-0034-00 || DPDT || 15 V 600 Ω  || [[7A13]]: K47,K48,K480,K490  || Omron G6N, G6S
| 108-0599-00 || SPST (reed) ||   ||   [[7T11]]: A3K31,A3K32,A3K70,A3K71,A3K80  || ||
|-
|-
| 148-0034-00 || DPDT ||  15 V 600 Ω  || [[7A11]]: K401,K403,K405,K407,K411,K413,K415,K417,K431 || AXICOM V23079-D2003-B301 (Ref. 2)
| 148-0034-00 || 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<br />[[7B70]], [[7B71]]: K6,K44,K48,K138,K780 <br /> [[7904]](A) Opt. 2: K802,K805,K812,K815 || 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)
| 148-0034-01 || DPDT ||  15 V 600 Ω || [[7A12]]: K7,K12,K15,K18<br /> [[485]]: K879,K1242  || || same pinout as 148-0034-00 but longer leads bent outwards
|-
|-
| 148-0035-00 ||     ||  15 V 600 Ω || 7A13: K60,K61 ||
| 148-0034-02 || DPDT ||  15 V 600 Ω || [[7A12]]: K7 for B020000 up  || || same pinout as 148-0034-00 but longer leads bent outwards
|-
|-
| 148-0050-00 || SPST ||  12 V        || 7A13: K10,K30 ||
| 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<br /> [[7A14]]: K51,K52,K53,K54,K155,K160,K180,K235,K280<br />[[7B70]], [[7B71]]: K3 || || Same pinout and coil data as 148-0050-00
|-
| [[148-0043-00]] || DPDT || 24 V 1325 Ω|| || ||
|-
| 148-0043-01 || DPDT || 24 V 1325 Ω|| || ||
|-
| 148-0044-00 || DPDT || 12 V 425 Ω|| || ||
|-
| 148-0050-00 || SPDT ||  15 V 600 Ω  || [[7A13]]: K10,K30 || || [[7A13]] manual erroneously calls them 12V DC relays. Print on relay identifies them as polarized, but they are not.
|-  
|-  
| 148-0054-00 || SPDT+SPST ||  15 V   || 7A13: K7,K27  ||
| 148-0054-00 || SPDT+SPST ||  15 V 600 Ω   || [[7A13]]: K7,K27  || ||
|-
| 148-0055-00 || SPDT+SPST ||  15 V 600 Ω  || [[7A13]]: K6,K26  || ||
|-
| 148-0058-00 ||  ||  4 V 130 Ω    || [[7A11|7A11 Probe]]: K55,K59  || ||
|-
| 148-0059-00 || DPDT  ||  9.5 V 115 Ω    ||  || ||
|-
| 148-0063-00 || DPDT  ||  15 V 600 Ω    || [[7A12]]: K5  || || Internally connected. Labled "Alt throw relay" in [[7A12]] manual.
|-
| 148-0076-00 || SPST (reed) ||  ||  [[7L12]]:  K1470  || ||
|-
|-
| 148-0055-00 || SPDT+SPST ||  15 V  || 7A13: K6,K26  ||
| [[148-0080-00]] || DPDT || 5 V at 65 Ω ||     || ||
|-
|-
| 148-0058-00 || || 4 V 130 Ω    || 7A13 Probe: K55,K59 ||
| 148-0087-00 || SPDT || 90 mW || [[7L12]]: K300,K353,K356,K1200 || ||
|-
|-
| 148-0076-00 ||   ||   ||   [[7L12]]: K1470  ||
| 148-0088-00 || DPDT || 15 V 1 kΩ || [[7L12]]: K281,K354,K355,K357,K1130,K1400,K1450 <br /> [[L1]] K108, K118, K128, K138 <br /> [[L2]] K308, K318, K328, K338 || || same pinout as 148-0034-00. [[7L12]] manual claims "120 mW", but print on relay (and measurement) says 15V 1000Ω which is 225 mW.
|-
|-
| 148-0087-00 || SPDT ||  || 7L12: K300,K353,K356,K1200  ||
| 148-0107 || DPDT || 18 V 880 Ω ||  TO5 replacement for 148-0088-00  || || Based on Hi-G MAW-169 7815 / Teledyne 412-6841, found in [[L1]]. The last two digits of the Tek part number are missing. Coil labeled 18V dc, 880 Ω
|-
|-
| 148-0088-00 || DPDT ||  || 7L12: K281,K354,K355,K357,K1130,K1400,K1450 ||
| 148-0107-03 || SPDT ||  || TO5 replacement    || ||
|-
|-
| 148-0107-03 || SPDT || || TO5 replacement   ||
| 148-0107-04 || DPDT  ||     || TO5 replacement for 148-0054-00 ([[7A13]]: K7,K27)  || ||  
|-
|-
| 148-0107-04 || DPDT  ||    || TO5 replacement for 148-0055-00 (7A13: K6,K26)  ||
| 148-0140-00 || Actuator ||    || [[:Category:2400 series scopes|2400 series]]  ||    ||
|-
|-
|}
|}
''to be expanded''  
''to be expanded''  


==References==
==References==
Line 48: Line 72:
# [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]
# [https://groups.io/g/TekScopes/message/119028 "... used a function generator to actuate it for a few hours which restored proper operation."]


==Pictures==
==Pictures==
Line 53: Line 78:
<gallery>
<gallery>
148-0034-03.jpg | 148-0034-03 in [[7A11]]
148-0034-03.jpg | 148-0034-03 in [[7A11]]
148-0034-00 connections.png | 148-0034-xx connections (bottom view)
Tek 148-0034-00 701.jpg|148-0034-00
Tek 148-0034-00 702.jpg|148-0034-00
148-0034-02-TS.jpg|148-0034-02
148-0034-02-diag.jpg|148-0034-02
148-0034-03-bot.jpg | 148-0034-03 bottom view
148-0034-03-bot.jpg | 148-0034-03 bottom view
148-0035-00.jpg | 148-0035-00 in [[7A13]]
148-0035-00.jpg | 148-0035-00 in [[7A13]]
tek-148-0107-4.jpg | 148-0107-04 TO-5 replacement relay
Tek 148-0035-00 1.jpg|148-0035-00
Tek 148-0035-00 1.jpg|148-0035-00
Tek 148-0035-00 2.jpg|148-0035-00
Tek 148-0035-00 2.jpg|148-0035-00
Tek 148-0035-00 3.jpg|148-0035-00
Tek 148-0035-00 3.jpg|148-0035-00
Tek 148-0035-00 4.jpg|148-0035-00
Tek 148-0035-00 4.jpg|148-0035-00
148-0035-00 connections.png | 148-0035-00 connections
Tek 148-0050-00 1.jpg|148-0050-00
Tek 148-0050-00 1.jpg|148-0050-00
Tek 148-0050-00 2.jpg|148-0050-00
Tek 148-0050-00 2.jpg|148-0050-00
Tek 148-0050-00 3.jpg|148-0050-00
Tek 148-0050-00 3.jpg|148-0050-00
Tek 148-0050-00 4.jpg|148-0050-00
Tek 148-0050-00 4.jpg|148-0050-00
0035-0050_comparison2.jpg| 148-0035-00 vs. 148-0050-00
148-0054-00-1.jpg|148-0054-00
148-0054-00-2.jpg|148-0054-00
Tek 148-0055-00 1.jpg|148-0055-00
Tek 148-0055-00 2.jpg|148-0055-00
Tek 148-0055-00 3.jpg|148-0055-00
Tek 148-0055-00 4.jpg|148-0055-00
0054-0055_comp.jpg|148-0054-00 vs. 148-0055-00
148-0107_Top.jpg|148-0107 TO-5 replacement relay
148-0107_Top2.jpg|148-0107 TO-5 replacement relay
148-0107_side.jpg|148-0107 TO-5 replacement relay
148-0107_side2.jpg|148-0107 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
</gallery>
====Other custom relays in Tek equipment====
<gallery>
108-0599-00 reed relays in 7T11.jpg | 108-0599-00 reed relays in [[7T11]]
Tek 11a33 inputrelay.jpg | Bi-stable relay yoke actuating contacts in [[11A33]] front-end (148-0204-00)
Tek 148-0128-00 1.jpg | [[148-0128-00]] relay yoke
Tek 262 program card relay1.jpg| 11PST reed relay on [[262]] program cards
Tek 262 program card front.jpg | 11PST reed relay on [[262]] program cards (top right)
maglatch.jpg | Mag Latch Relay (from 1987 catalog)
148-0140-00.jpg  | 148-0140-00
148-0140-00 frame.jpg | Three 148-0140-00 in a frame
119-1445-02.jpg | 148-0140-00s in [[119-1445-02]] attenuator (2400 series)
Tek_148-0129-01_1.jpeg | 148-0129-01
Tek_148-0129-01_2.jpeg | 148-0129-01 in [[485]] attenuator
</gallery>
</gallery>
* [[7A29]] input protection relay


==See Also==
* [[148-0128-00]]


[[Category:Repair issues]]
[[Category:Repair issues]]
[[Category:Electromechanical components]]
[[Category:Relays]]

Revision as of 13:53, 20 September 2021

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 working ones have become very rare. Some of these relays have symmetrical socket layouts so that they can be installed in both possible 180° rotated positions.

Interestingly, Tek appears 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.

Possible repair strategies include "micro-surgery" (Ref.1), installing modern miniature gold-contact relays on top of the cut-off base or, if energizing the coil mechanically operates the relay, using a signal source to cycle the relay for a period of time.

Relays of the 148-0034-00 family have contacts with 100mil (2.54mm) pitch; the housings are 16.0 x 8.3 x 15 mm (width x depths x height).

Tek P/N Contacts Coil Used in Replacement Note
108-0599-00 SPST (reed) 7T11: A3K31,A3K32,A3K70,A3K71,A3K80
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
7B70, 7B71: K6,K44,K48,K138,K780
7904(A) Opt. 2: K802,K805,K812,K815
AXICOM V23079-D2003-B301 (Ref. 2)
Omron G6N, G6S
148-0034-01 DPDT 15 V 600 Ω 7A12: K7,K12,K15,K18
485: K879,K1242
same pinout as 148-0034-00 but longer leads bent outwards
148-0034-02 DPDT 15 V 600 Ω 7A12: K7 for B020000 up same pinout as 148-0034-00 but longer leads bent outwards
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
7B70, 7B71: K3
Same pinout and coil data as 148-0050-00
148-0043-00 DPDT 24 V 1325 Ω
148-0043-01 DPDT 24 V 1325 Ω
148-0044-00 DPDT 12 V 425 Ω
148-0050-00 SPDT 15 V 600 Ω 7A13: K10,K30 7A13 manual erroneously calls them 12V DC relays. Print on relay identifies them as polarized, but they are not.
148-0054-00 SPDT+SPST 15 V 600 Ω 7A13: K7,K27
148-0055-00 SPDT+SPST 15 V 600 Ω 7A13: K6,K26
148-0058-00 4 V 130 Ω 7A11 Probe: K55,K59
148-0059-00 DPDT 9.5 V 115 Ω
148-0063-00 DPDT 15 V 600 Ω 7A12: K5 Internally connected. Labled "Alt throw relay" in 7A12 manual.
148-0076-00 SPST (reed) 7L12: K1470
148-0080-00 DPDT 5 V at 65 Ω
148-0087-00 SPDT 90 mW 7L12: K300,K353,K356,K1200
148-0088-00 DPDT 15 V 1 kΩ 7L12: K281,K354,K355,K357,K1130,K1400,K1450
L1 K108, K118, K128, K138
L2 K308, K318, K328, K338
same pinout as 148-0034-00. 7L12 manual claims "120 mW", but print on relay (and measurement) says 15V 1000Ω which is 225 mW.
148-0107 DPDT 18 V 880 Ω TO5 replacement for 148-0088-00 Based on Hi-G MAW-169 7815 / Teledyne 412-6841, found in L1. The last two digits of the Tek part number are missing. Coil labeled 18V dc, 880 Ω
148-0107-03 SPDT TO5 replacement
148-0107-04 DPDT TO5 replacement for 148-0054-00 (7A13: K7,K27)
148-0140-00 Actuator 2400 series

to be expanded


References

  1. Repairing 7A13 relays @ PA4TIM (how to take relays apart, inside photos)
  2. 7A11 repair report at amplifier.cd
  3. Tek 7A13 broken relays @ IK1ZYW Labs
  4. "... used a function generator to actuate it for a few hours which restored proper operation."

Pictures

Other custom relays in Tek equipment

  • 7A29 input protection relay