Search found 1452 matches

by Lenp
Thu Sep 23, 2021 12:13 pm
Forum: General Discussion
Topic: Probes?
Replies: 2
Views: 49

Re: Probes?

My policy is.. I don't buy anything I'm not comfortable throwing away after the warranty! 'Many years ago there were only a few magnetron designs and, if they fit, they worked. Maybe still so today? Since the 'electronics' is the usual failure item, there are probably tons of serviceable magnetrons ...
by Lenp
Wed Sep 22, 2021 9:02 pm
Forum: General Discussion
Topic: Probes?
Replies: 2
Views: 49

Probes?

Years ago, when electronics was a big hobby/career, many companies sold 'probe kits' These were enclosures, of all types, that you could use to build a custom test probe, signal tracer, injector...whatever. Now it looks like they are in the unobtanium category. Looking in many places nothing was fou...
by Lenp
Mon Jul 26, 2021 4:18 pm
Forum: General Discussion
Topic: DIY pancake slip ring
Replies: 16
Views: 4952

Re: DIY pancake slip ring

Don't know it this slip ring project is still of interest, but if it is here's another idea. Make two non-conductive disks, diameter as required, with a center hole in each. Make two (or more) rings from a flat copper sheet that will be concentric to one each other and fit on the disk. fasten as des...
by Lenp
Thu Apr 01, 2021 3:01 pm
Forum: General Discussion
Topic: Copper clad Al wire
Replies: 4
Views: 2744

Re: Copper clad Al wire

The US embraced aluminum wire years ago, and regretted some of it.
Today aluminum is still used for large feeders teminated with Al/CU rated connectors.
Small wire was a nightmare and has been banned most everywhere due to cold flow and work hardening issues.
Failures are not worth the money saved.
by Lenp
Fri Feb 05, 2021 7:48 pm
Forum: General Discussion
Topic: HotSpot question
Replies: 6
Views: 2941

Re: HotSpot question

Sorry, I guess I didn't say it but there is no router and it is not related to cell phone service.
These are SmartSets, with built in WiFi that are receiving from Xfinity (Comcast) HotSpots.
Hope this helps.
by Lenp
Fri Feb 05, 2021 7:41 pm
Forum: General Discussion
Topic: Realistic specs
Replies: 30
Views: 8697

Re: Realistic specs

Hi CeaSaR Nope, not carbon comp. These were small, blue, like .5W metal film 100 ohm. One measured ROA (Resistance Of Air) but both got changed with higher rating resistors. This amp originally came in with one side of the primary winding open in the output transformer. These Trace Elliott Velocette...
by Lenp
Wed Feb 03, 2021 10:40 pm
Forum: General Discussion
Topic: HotSpot question
Replies: 6
Views: 2941

HotSpot question

My son lives in a condo, not far from an Xfinity HotSpot. He gets fair connection speeds during the day but it suffers at night with a lot of buffering, I guess since traffic has increased, or atmospheric conditions changed. I found a ton of 'Extenders, Amplifiers and Repeaters' online that claim wo...
by Lenp
Mon Feb 01, 2021 9:49 am
Forum: General Discussion
Topic: WAT IZZ IT?
Replies: 13
Views: 4478

Re: WAT IZZ IT?

Here's the end of the story... The electronic parts bag was a mini tesla coil. After assembly it managed to make a .25" arc with corona discharge and a bit of ozone. Even at that minimal performance the heat sinked power transistor got hot in a couple of minutes. To do anything a power pack and fan ...
by Lenp
Sun Jan 31, 2021 5:45 pm
Forum: General Discussion
Topic: Realistic specs
Replies: 30
Views: 8697

Re: Realistic specs

Regarding cleaning that plastic tuning cap. Beware, most of those era variable caps used very thin plastic separators between the plates since it was all packed together so tight. The unit is pretty well sealed so anything you inject will take a long time to evporate. If the plates are wet or the cl...
by Lenp
Sun Jan 03, 2021 9:30 am
Forum: General Discussion
Topic: Shopjimmy
Replies: 13
Views: 4752

Re: Shopjimmy

I bought a board set, main board and power supply, for a Vizo a few years ago. It was around $30 for the set. The new main board had an issue. They replaced both boards and did not want the first set back.
I guess if you have a factory direct contact the real cost is pennies!
by Lenp
Fri Jan 01, 2021 5:39 am
Forum: General Discussion
Topic: Greetings!
Replies: 14
Views: 9567

Re: Greetings!

Happy holiday to all that are still hanging around here. That's 365 more sunrises and sunsets behind us, and my sincere hopes for many more.

Illegitimi non carborundum
by Lenp
Thu Dec 24, 2020 7:34 am
Forum: General Discussion
Topic: Odd Commercial Products.........
Replies: 98
Views: 44028

Re: Odd Commercial Products.........

I just realize now that many years ago our family must have had a very advanced toaster.

When the bread was half done you....

Flipped opened the door
and
Flopped over the bread.

I can still see the stylized 'JK ' brand on the door....😏
by Lenp
Sun Dec 20, 2020 8:51 pm
Forum: General Discussion
Topic: Is Nuts and Volts dead ?
Replies: 82
Views: 40034

Re: Is Nuts and Volts dead ?

Yesterday I said to my wife "WoW, we sure got a lot of holiday cards today" as I was busy opening them.
They were the ones she put out for pickup earlier.... :sad:
by Lenp
Thu Dec 17, 2020 4:04 pm
Forum: General Discussion
Topic: Is Nuts and Volts dead ?
Replies: 82
Views: 40034

Re: Is Nuts and Volts dead ?

I'm getting giddy with excitement....
by Lenp
Thu Dec 17, 2020 2:37 pm
Forum: General Discussion
Topic: Is Nuts and Volts dead ?
Replies: 82
Views: 40034

Re: Is Nuts and Volts dead ?

WOW!
6 NEW posts all in the same day!
Causes Célèbres