Products > Test Equipment
Test Equipment Anonymous (TEA) group therapy thread
med6753:
--- Quote from: nixiefreqq on May 26, 2018, 03:53:51 pm ---
--- Quote from: med6753 on May 26, 2018, 03:08:25 pm ---
--- Quote from: nixiefreqq on May 26, 2018, 03:03:39 pm ---
--- Quote from: med6753 on May 26, 2018, 02:52:32 pm ---Portascope my ass! :wtf: Although in it's day Dumont was good stuff. That scope looks a lot like an HP. Is it just rebranded or was it built by Dumont?
--- End quote ---
am pretty sure it was a genuine Dumont product. later ones were badged Fairchild according to the manual.
they were very proud that it was "solid state"......BUT the front end used nuvistors.
--- End quote ---
Yep, many Teks of that vintage used nuvistors in their front end until suitable FET's were available.
--- End quote ---
did not know that about the early teks. used to carry a 465 on the road a lot but...... they were on a hand receipt from an army tool room. only ever owned a tek for about a week myself (my brother found a 465 in a girl friends attic and didn't know what it was). could not find anything in need of repair, so it went to an old boss who is a tek guy.
scopes that actually made it down into the basement are mostly hp 1740 series.........and that monster dumont.
--- End quote ---
As far as I know the 465 always had FET front ends. But older portables such as the 453 and 454 when they first came out had nuvistor tubes. I think they were 6CW4's or the industrial equivalent. One plug in for the big 500 series such as the 1A1 and 1A2 also initially had nuvsitor front ends then FET's.
Specmaster:
--- Quote from: med6753 on May 26, 2018, 03:05:15 pm ---Bd139, I have to give you kudos in rebuilding that D83. That's not something I would tackle. Looking forward to seeing it complete.
In other news....this weekend (Memorial Day) is a 3 day weekend and the unofficial start of Summer. So it's time for family get togethers, picnics, cookouts, etc. But apparently there are families who should stay away from each other. I do a lot of listening on a Police/fire scanner. Starting last night the police have been EXTREMELY busy with domestic (family) disputes. It has continued right thru this morning and I expect it to get worse as the alcohol takes effect. Not a fun weekend to be a cop. :scared:
--- End quote ---
Well you see, you can choose your friends but not your family[emoji6]
From mobile device so predictive text might have struck again [emoji83]
bd139:
--- Quote from: Specmaster on May 26, 2018, 03:59:21 pm ---Well you see, you can choose your friends but not your family[emoji6]
--- End quote ---
You can choose your family. They just don’t like it when you do >:D
--- Quote from: med6753 on May 26, 2018, 03:58:32 pm ---As far as I know the 465 always had FET front ends. But older portables such as the 453 and 454 when they first came out had nuvistor tubes. I think they were 6CW4's or the industrial equivalent. One plug in for the big 500 series such as the 1A1 and 1A2 also initially had nuvsitor front ends then FET's.
--- End quote ---
I had a whole crate of bits a while ago that appeared to have come out of a number of 1A1’s. Turns out nuvistor sockets are seriously valuable even if used!
--- Quote from: mnementh on May 26, 2018, 03:55:12 pm ---
--- Quote from: bd139 on May 26, 2018, 03:00:05 pm ---That guy looks like my 5 year old trying to carry a Tek 465 :-DD
--- End quote ---
I was thinking the same thing about my son and my 454... LOL
Though still not as prehistoric as my first 'scope; a half-finished Eico kit I picked up at my first hamfest in Pittsburgh as a schoolage kid. I got lit up a few times on that thing; taught me a healthy respect for tube electronics and the related bias voltages, I tell you what. :-DD
mnem
*tzzzzt* and a half...
--- End quote ---
I never will forget my first zap off some tube kit. I was 9. I exclaimed “Jesus Christ!” immediately after brushing my hand on a 300v HT line. No one would blink an eye now but I was at my catholic grandmother’s house so this was immediately followed by me being chased up the garden with a broom handle for blaspheming.
This might also have contributed somewhat to my current following of the Flying Spaghetti Monster.
mnementh:
--- Quote from: Cerebus on May 26, 2018, 03:50:58 pm ---
--- Quote from: mnementh on May 26, 2018, 03:17:29 pm ---Dust elephants, not dust bunnies... a common infestation in that region. You'll need the BIG Shop-Vac, some brain bleach and a 24-inch crowbar in case there's a bull and it decides to charge. :-DD
mnem
You might want to get the .303 out of the closet just in case they stampede... :scared:
--- End quote ---
That just makes a neat hole and they carry on charging. You need a 12-gauge shotgun loaded with No. 10 shot, you have to disperse them back into free floating fluff. :)
--- End quote ---
Now where's the fun in that?
mnem
Maxim 37: There is no "Overkill." There is only "Open fire!!!" and "I need to reload."
Specmaster:
--- Quote from: bd139 on May 26, 2018, 04:08:26 pm ---
--- Quote from: Specmaster on May 26, 2018, 03:59:21 pm ---Well you see, you can choose your friends but not your family[emoji6]
--- End quote ---
You can choose your family. They just don’t like it when you do >:D
--- Quote from: med6753 on May 26, 2018, 03:58:32 pm ---As far as I know the 465 always had FET front ends. But older portables such as the 453 and 454 when they first came out had nuvistor tubes. I think they were 6CW4's or the industrial equivalent. One plug in for the big 500 series such as the 1A1 and 1A2 also initially had nuvsitor front ends then FET's.
--- End quote ---
I had a whole crate of bits a while ago that appeared to have come out of a number of 1A1’s. Turns out nuvistor sockets are seriously valuable even if used!
--- Quote from: mnementh on May 26, 2018, 03:55:12 pm ---
--- Quote from: bd139 on May 26, 2018, 03:00:05 pm ---That guy looks like my 5 year old trying to carry a Tek 465 :-DD
--- End quote ---
I was thinking the same thing about my son and my 454... LOL
Though still not as prehistoric as my first 'scope; a half-finished Eico kit I picked up at my first hamfest in Pittsburgh as a schoolage kid. I got lit up a few times on that thing; taught me a healthy respect for tube electronics and the related bias voltages, I tell you what. :-DD
mnem
*tzzzzt* and a half...
--- End quote ---
I never will forget my first zap off some tube kit. I was 9. I exclaimed “Jesus Christ!” immediately after brushing my hand on a 300v HT line. No one would blink an eye now but I was at my catholic grandmother’s house so this was immediately followed by me being chased up the garden with a broom handle for blaspheming.
This might also have contributed somewhat to my current following of the Flying Spaghetti Monster.
--- End quote ---
As if the zap didn't shake you enough, they also wanted to beat the shit out of you with the broom handle [emoji6]
From mobile device so predictive text might have struck again [emoji83]
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