Forums :: Resources :: Features :: Photo Gallery :: Vintage Radio Shows :: Archives :: Books
Support This Site: Contributors :: Advertise


It is currently Jun Mon 24, 2019 8:26 pm


All times are UTC [ DST ]





Post New Topic Post Reply  [ 13 posts ] 
Author Message
 Post subject: Advice on origin of my GEL Vacuum tube breadboard system
PostPosted: Dec Wed 11, 2013 3:08 am 
New Member

Joined: Dec Sat 07, 2013 5:33 pm
Posts: 5
I have an unused breadboard system from General Electronic Laboratories that uses the "Erectronic" connector to assemble vacuum tube circuits. Many trays of parts housed in a wood cabinet. I think it was used to teach military electronics or college physics course.

I can not find it online and wonder if anyone used one in the past . The front of the storage cabinet has a locking metal cover that is silkscreened with GEL General Electronics laboratories Inc.

Pictures if wanted.


Thanks


Top
 Profile  
 
 Post subject: Re: Advice on orgin of my GEL Vacuum tube breadboard system
PostPosted: Dec Wed 11, 2013 7:17 pm 
Member
User avatar

Joined: Sep Mon 10, 2012 10:41 pm
Posts: 3906
Location: Phoenix, AZ
Is this what you are talking about?

http://www.cockam.com/erectron.htm

_________________
Everyone you meet is fighting a battle you know nothing about.


Top
 Profile  
 
 Post subject: Re: Advice on orgin of my GEL Vacuum tube breadboard system
PostPosted: Dec Wed 11, 2013 7:53 pm 
Member
User avatar

Joined: May Wed 18, 2011 2:40 am
Posts: 3859
Location: Littleton, MA
Flinx wrote:
Is this what you are talking about?

http://www.cockam.com/erectron.htm

Ah, a number of components mounted like that were tossed as part of the MIT lab clean-up. I had wondered what breadboard setup they came from.

_________________
Steve Byan http://www.byan-roper.org/steve/steve-at-play/


Top
 Profile  
 
 Post subject: Re: Advice on orgin of my GEL Vacuum tube breadboard system
PostPosted: Dec Wed 11, 2013 8:00 pm 
Member
User avatar

Joined: May Wed 18, 2011 2:40 am
Posts: 3859
Location: Littleton, MA
oldprofessor wrote:
I have an unused breadboard system from General Electronic Laboratories that uses the "Erectronic" connector to assemble vacuum tube circuits.

A little Googling turned up this piece of history:
http://ronamok.com/2007/12/07/50-years- ... s-arrives/

Quote:
In 1954, an Industrial Arts teacher from Long Island came to speak at the Massachusetts Institute of Technology about his new invention: a breadboarding system that he proposed could be used to teach electronics. Arthur Jubenville had patented this system and started a company called Science Electronics, Inc. (SEI). During the conference, he was introduced to a Cambridge-based electronics company by the name of General Electronic Labs(GEL), which was developing RADAR countermeasure technologies for the Department of Defense. In this chance meeting, SEI became a wholly-owned subsidiary of GEL and with funding, SEI went began marketing Jubenville’s invention.

The breadboarding system was unique because it allowed students to assemble electronic circuits without the use of solder. The kit came with various electrical components, such as resistors, capacitors, diodes, vacuum tubes, loudspeakers, transformers, each mounted onto a module. The bottom of these modules contained evenly spaced “pegs” that fit nicely onto a supplied pegboard. After the student had placed the components onto the pegboard, the next part was to hook them up, with these clever little “Jiffy Clips,” wires with simple clips on either end that snapped onto module posts.

Not only was SEI looking to get this system into schools, but it also felt that there was a home market for it. “We all grew up on Erector Sets,” Arthur Nelson, co-founder of GEL said, “so we decided to set up a meeting with the AC Gilbert company.” A contingent from SEI went to “Erector Square” and left with an agreement. SEI licensed the system to AC Gilbert for marketing to the home user, and the “Erectronic” (Sometimes called “Erec-tronic”) was born.


There also was a thread on ARF where these came up, including some nice photos:
viewtopic.php?p=807097#p807097

_________________
Steve Byan http://www.byan-roper.org/steve/steve-at-play/


Top
 Profile  
 
 Post subject: Re: Advice on orgin of my GEL Vacuum tube breadboard system
PostPosted: Dec Wed 11, 2013 11:44 pm 
New Member

Joined: Dec Sat 07, 2013 5:33 pm
Posts: 5
Thanks for the information and assistance. The history helped and I have added photos to help jog others memories. I asked the family of the person who has passed that owned the item and they think he got it on the east coast and never tried to build any circuits. No experiments or schematics of circuit designs were found at the estate sale.

Oldprofessor


Attachments:
resized_cabinent.jpg
resized_cabinent.jpg [ 57.8 KiB | Viewed 2752 times ]
resized_transformer.jpg
resized_transformer.jpg [ 74.69 KiB | Viewed 2752 times ]
resized_GEL misc clips.jpg
resized_GEL misc clips.jpg [ 104.45 KiB | Viewed 2752 times ]
resized_resistors.jpg
resized_resistors.jpg [ 119.68 KiB | Viewed 2752 times ]
resized_pots, switches and coils.jpg
resized_pots, switches and coils.jpg [ 149.69 KiB | Viewed 2752 times ]
Top
 Profile  
 
 Post subject: Re: Advice on orgin of my GEL Vacuum tube breadboard system
PostPosted: Dec Thu 12, 2013 3:13 am 
Member
User avatar

Joined: Feb Sun 05, 2012 5:12 pm
Posts: 853
Location: North Syracuse NY 13212
Just Awesome! I had the set which had the parts to build a one-transistor radio, I've seen pix of the set which uses a 1.5 volt tube, but the sight of those transformers and pots and rows of resistors (power resistors to boot!) mounted on those familiar yellow blocks and a real octal tube is just unforgettable.
Even without the manual, all of the specs for the parts appear to be in place, and it would be very useful for tube experiments.
I had mine about 40 years ago, and all that remains is a resistor and a capacitor.....

Bob
W2ELV

_________________
Life is too short to be serious all the time.


Top
 Profile  
 
 Post subject: Re: Advice on orgin of my GEL Vacuum tube breadboard system
PostPosted: Dec Thu 12, 2013 3:36 am 
Member
User avatar

Joined: Sep Mon 10, 2012 10:41 pm
Posts: 3906
Location: Phoenix, AZ
I could use something like that if I had the room for it. Very cool idea.

_________________
Everyone you meet is fighting a battle you know nothing about.


Top
 Profile  
 
 Post subject: Re: Advice on orgin of my GEL Vacuum tube breadboard system
PostPosted: Dec Thu 12, 2013 6:24 am 
New Member

Joined: Dec Sat 07, 2013 5:33 pm
Posts: 5
This is another tray of parts. Is this GEL system unique enough to be donated to a museum and should be left unused or should I build a tube receiver.


Attachments:
resized_resized_components.jpg
resized_resized_components.jpg [ 146.93 KiB | Viewed 2692 times ]
Top
 Profile  
 
 Post subject: Re: Advice on orgin of my GEL Vacuum tube breadboard system
PostPosted: Dec Thu 12, 2013 7:00 am 
Member

Joined: Jan Thu 01, 1970 1:00 am
Posts: 2041
Location: Oswego, NY, USA
The same design, right down to the yellow plastic component mounts, was part of our 1962-1968 vintage Malmstadt-Enke/Heath chemistry workstations. It also included early transistors, Ge diodes, EUW-series VTVM's etc. Until reading the posts (above) I had thought it was all a Heath invention....apparently not. The problems with our setups were they occupied far too much space in a lab and nobody had used them in 3 decades. I kept the stations' manuals, parts lists and catalogs. We had two complete stations because our previous analytical chem prof had been a friend/classmate of Dr. Malmstadt when they had studied at Mich State.


Top
 Profile  
 
 Post subject: Re: Advice on orgin of my GEL Vacuum tube breadboard system
PostPosted: Dec Thu 12, 2013 7:39 am 
Member
User avatar

Joined: Jan Thu 01, 1970 1:00 am
Posts: 8752
Location: Beaver Falls, PA. USA
I have a box full of those components; now I know where they came from.

_________________
Tim KA3JRT


Top
 Profile  
 
 Post subject: Re: Advice on orgin of my GEL Vacuum tube breadboard system
PostPosted: Dec Thu 12, 2013 7:49 am 
Member

Joined: Feb Mon 25, 2013 3:39 am
Posts: 1502
Location: Truth or Consequences, NM
oldprofessor
If you decide to use it, the old electrolytic and paper capacitors would need to be replaced.
What a fun set to find. Yep I would use it myself if I had it.


Top
 Profile  
 
 Post subject: Re: Advice on orgin of my GEL Vacuum tube breadboard system
PostPosted: Jan Thu 18, 2018 7:48 pm 
New Member

Joined: Jan Tue 01, 2013 9:59 pm
Posts: 9
Fred Scoles wrote:
I kept the stations' manuals, parts lists and catalogs.


Wow, I have what appears to be a model BE-5 Erec-Tronic... I am wantig to find the project instructions for it. Any similar model will do . Any chance you can post/send this in a PDF or other means? Anyone else knwo where I can find the manual for one of these?


Top
 Profile  
 
 Post subject: Re: Advice on origin of my GEL Vacuum tube breadboard system
PostPosted: Jan Fri 19, 2018 7:41 pm 
Member
User avatar

Joined: Oct Thu 18, 2007 11:34 am
Posts: 4043
Location: Port Orchard, Wa 98366
not material but FYI.

http://www.cockam.com/erectron.htm

_________________
Visit our Webpage:
http://antique-radio-lab.forumotion.com/
*I was smokinradios Long time ago* ;)


Top
 Profile  
 
Post New Topic Post Reply  [ 13 posts ]  Moderator: sofaslug

All times are UTC [ DST ]


Who is online

Users browsing this forum: palegreenthumb, VECHER and 17 guests



Search for:
Jump to:  




























Privacy Policy :: Powered by phpBB