Ye Olde Rocket Forum

Go Back   Ye Olde Rocket Forum > The Golden Age of Model Rocketry > Plans & Publications
User Name
Password
Auctions Register FAQ Members List Calendar Today's Posts Search Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #21  
Old 04-10-2020, 08:30 AM
j.a.duke j.a.duke is offline
Intermediate Rocketeer
 
Join Date: May 2008
Location: Massachusetts
Posts: 89
Default

Quote:
Originally Posted by JohnNGA
Hi Dave, The pushbutton is a Switchcraft 101, the keyed switch is an Arrow-hart unit . The pilot light was made by DialCo (Red convex glass 3/4 mounting hole) The button and pilot light can sometimes be found on Ebay. The keyed switch is still available (search Arrow-Hart keyed switch). The pilot light is becoming difficult to find. John


Do you have a part number for the key switch? I've found a few Arro Hart key switches and am trying to determine which, if any, are the correct one.

I assume that you can only remove the key from the switch in the Off position.

Thanks.

Cheers,
Jon
__________________
BAR 2007
Reply With Quote
  #22  
Old 04-10-2020, 09:37 AM
Earl's Avatar
Earl Earl is offline
Apollo Nut
 
Join Date: Dec 2006
Posts: 2,285
Default

Quote:
Originally Posted by j.a.duke
Do you have a part number for the key switch? I've found a few Arro Hart key switches and am trying to determine which, if any, are the correct one.

I assume that you can only remove the key from the switch in the Off position.

Thanks.

Cheers,
Jon


Yes, the key should only be removable in the off position. I actually acquired a second Centuri Professional panel that the key comes out only in the on position, but I think either the switch is defective or it was replaced and wired incorrectly by a former owner. It just doesn't make sense to have the key removable in the on position.

Earl
__________________
Earl L. Cagle, Jr.
NAR# 29523
TRA# 962
SAM# 73
Owner/Producer
Point 39 Productions

Rocket-Brained Since 1970
Reply With Quote
  #23  
Old 04-10-2020, 04:10 PM
JohnNGA's Avatar
JohnNGA JohnNGA is offline
Craftsman
 
Join Date: Aug 2010
Location: Jefferson, Georgia
Posts: 339
Default

Quote:
Originally Posted by j.a.duke
Do you have a part number for the key switch? I've found a few Arro Hart key switches and am trying to determine which, if any, are the correct one.

I assume that you can only remove the key from the switch in the Off position.

Thanks.

Cheers,
Jon

The key switches I have don't show a part#. The switch I used in my replica appears to be externally identical to what was used in the original. However it, nor any of the switches that I have retain the key in the on position, it might be they are a later version that lack that feature (key is missing notches).

I checked eBay today and there are several vintage type Arrow Hart switches available (not mine). I don't know if they have the 'remain in when on' type key.
Attached Thumbnails
Click image for larger version

Name:  thumbnail_WP_20200410_16_21_51_Procord (2).jpg
Views: 16
Size:  140.6 KB  Click image for larger version

Name:  thumbnail_WP_20200410_16_22_44_Prolaunch (2).jpg
Views: 20
Size:  160.4 KB  

Last edited by JohnNGA : 04-10-2020 at 04:49 PM.
Reply With Quote
  #24  
Old 04-10-2020, 05:16 PM
Ez2cDave's Avatar
Ez2cDave Ez2cDave is offline
Master Modeler
 
Join Date: Mar 2005
Posts: 572
Default

Does this help ?
Attached Thumbnails
Click image for larger version

Name:  ARROW - HART 1561 - 10.jpg
Views: 13
Size:  59.8 KB  Click image for larger version

Name:  ARROW - HART 1561 - 9.jpg
Views: 7
Size:  58.3 KB  Click image for larger version

Name:  ARROW - HART 1561 - 8.jpg
Views: 2
Size:  58.2 KB  Click image for larger version

Name:  ARROW - HART 1561 - 7.jpg
Views: 5
Size:  59.5 KB  Click image for larger version

Name:  ARROW - HART 1561 - 6.jpg
Views: 2
Size:  64.7 KB  Click image for larger version

Name:  ARROW - HART 1561 - 5.jpg
Views: 5
Size:  67.2 KB  Click image for larger version

Name:  ARROW - HART 1561 - 4.jpg
Views: 3
Size:  70.0 KB  Click image for larger version

Name:  ARROW - HART 1561 - 3.jpg
Views: 10
Size:  60.8 KB  Click image for larger version

Name:  ARROW - HART 1561 - 2.jpg
Views: 2
Size:  63.6 KB  Click image for larger version

Name:  ARROW - HART 1561 - 1.jpg
Views: 11
Size:  70.4 KB  

__________________
"Failure Is Not An Option . . . Adapt & Overcome ! "

NAR # 26128 L2
TRIPOLI # 517 L2 ( inactive, at present )
Reply With Quote
  #25  
Old 04-10-2020, 05:22 PM
Ez2cDave's Avatar
Ez2cDave Ez2cDave is offline
Master Modeler
 
Join Date: Mar 2005
Posts: 572
Default

NOTE : The LAST Photo clearly shows a "notch" in the key. Presumably, this is what makes it "non-removable" except in the "Off" position, when the slots line up . . . The 1561 Key DOES NOT have this "notch" !

Therefor, the "1561" switch is NOT the correct one. Unfortunately, I have been unable to locate the "specs" for these switches . . . An old catalog would likely be most helpful !

Dave F.

Attached Thumbnails
Click image for larger version

Name:  vintage-centuri-launch-pad-firing_1_552aeb74071b4c1ba499cd2a0f7f5fac.jpg
Views: 20
Size:  125.1 KB  Click image for larger version

Name:  CENTURI PROFESSIONAL FIRING PANEL - EP-612- p2.JPG
Views: 3
Size:  1.91 MB  Click image for larger version

Name:  CENTURI PROFESSIONAL FIRING PANEL - EP-612- p1.JPG
Views: 9
Size:  1.82 MB  Click image for larger version

Name:  ARROW - HART 1561 - 15.jpg
Views: 3
Size:  173.3 KB  Click image for larger version

Name:  ARROW - HART 1561 - 14.jpg
Views: 3
Size:  173.2 KB  Click image for larger version

Name:  ARROW - HART 1561 - 13.jpg
Views: 6
Size:  173.1 KB  Click image for larger version

Name:  ARROW - HART 1561 - 12.jpg
Views: 5
Size:  58.1 KB  Click image for larger version

Name:  ARROW - HART 1561 - 11.jpg
Views: 5
Size:  56.6 KB  
__________________
"Failure Is Not An Option . . . Adapt & Overcome ! "

NAR # 26128 L2
TRIPOLI # 517 L2 ( inactive, at present )

Last edited by Ez2cDave : 04-10-2020 at 06:29 PM.
Reply With Quote
  #26  
Old 04-10-2020, 07:06 PM
JohnNGA's Avatar
JohnNGA JohnNGA is offline
Craftsman
 
Join Date: Aug 2010
Location: Jefferson, Georgia
Posts: 339
Default

Quote:
Originally Posted by Ez2cDave
NOTE : The LAST Photo clearly shows a "notch" in the key. Presumably, this is what makes it "non-removable" except in the "Off" position, when the slots line up . . . The 1561 Key DOES NOT have this "notch" !

Therefor, the "1561" switch is NOT the correct one. Unfortunately, I have been unable to locate the "specs" for these switches . . . An old catalog would likely be most helpful !

Dave F.


Thanks Dave,
That explains a lot..mine are all 1561.
Reply With Quote
  #27  
Old 04-10-2020, 07:48 PM
Ez2cDave's Avatar
Ez2cDave Ez2cDave is offline
Master Modeler
 
Join Date: Mar 2005
Posts: 572
Default

Quote:
Originally Posted by JohnNGA
Thanks Dave,
That explains a lot..mine are all 1561.


The problem is trying to determine the correct Part # .

If anyone can locates an old Arrow Hart catalog ( these switches were still available in the early to mid- 1980's, from what I've read.

This "MONSTER" exists, but the right switch type is no longer made, it appears. If you have "nothing better to do", have at it !

https://www.cesco.com/resources/pdf...256-Catalog.pdf

Dave F.
__________________
"Failure Is Not An Option . . . Adapt & Overcome ! "

NAR # 26128 L2
TRIPOLI # 517 L2 ( inactive, at present )
Reply With Quote
  #28  
Old 04-10-2020, 08:05 PM
Ez2cDave's Avatar
Ez2cDave Ez2cDave is offline
Master Modeler
 
Join Date: Mar 2005
Posts: 572
Default

There is a possibility that I may have located the switch . . . (SWZ) 81715-L

https://www.surplussales.com/switch...eyswitch-1.html

Dave F.
Attached Thumbnails
Click image for larger version

Name:  ARMING SWITCH.JPG
Views: 25
Size:  44.2 KB  Click image for larger version

Name:  SWITCHES.JPG
Views: 11
Size:  348.3 KB  
Attached Files
File Type: pdf Allied-Catalog-1958-OCR-Page-0195.pdf (123.9 KB, 7 views)
__________________
"Failure Is Not An Option . . . Adapt & Overcome ! "

NAR # 26128 L2
TRIPOLI # 517 L2 ( inactive, at present )
Reply With Quote
  #29  
Old 04-10-2020, 08:32 PM
Earl's Avatar
Earl Earl is offline
Apollo Nut
 
Join Date: Dec 2006
Posts: 2,285
Default

Yeah, that appears to be it. The key on the newer one looks different obviously, but same part number and the key does lock in the on position. Good find!

I have an extra loose switch, but it is not real handy to check any part numbers on it. And I canít recall right off hand if it locks in the on position or not.


Earl
__________________
Earl L. Cagle, Jr.
NAR# 29523
TRA# 962
SAM# 73
Owner/Producer
Point 39 Productions

Rocket-Brained Since 1970
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



All times are GMT -5. The time now is 02:39 AM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe © 1998-2020